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51results about How to "Solve incomplete problems" patented technology

Real-time performance test method of embedded system

InactiveCN106776272AFacilitate structural design and hardware and software selectionImprove usabilitySoftware testing/debuggingEmbedded systemPerformance improvement
The invention discloses a real-time performance test method of an embedded system, which is used to solve the technical problems of poor precision of an existing real-time performance test method of embedded system. A real-time basic index, a multi-core index and a division index are incorporated into the real-time performance test to realize microsecond time acquisition through a direct hardware access mechanism, and the problems in the existing performance test algorithm of the indexes are solved. Because real-time performance index architecture of the embedded system is adapted, more comprehensive real-time performance data of the embedded system can be obtained. The real-time performance test method provides performance improvement direction for the existing embedded system so as to promote the design of embedded system structure and the selection of hardware and software to improve the availability of the embedded system. At the performance test phase, relative algorithms about the embedded real-time performance are improved with hardware time acquisition method, the complexity of the algorithms is reduced, and the accuracy of the test results is improved with the real-time test accuracy of 10-6 level.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method and device for operating standard program C under Android system

The invention relates to the technical field of Android systems, in particular to a method and device for operating a standard program C under an Android system. The method comprises the steps that all library files required by the program C to be operated under a standard library C environment are searched; a catalog of the standard library C is created in Android source codes and the searched library files are copied into the catalog of the standard library C in the Android source codes; when the Android system is initialized, a user-defined catalog is created and is in soft linkage with the catalog of the standard library C in the Android source codes; all the library files required by the program C are found through the user-defined catalog under the Android system and the program C is operated. The executable library files can be compiled under the standard C environment, the dynamically linked standard library C can be directly operated on the Android system, and therefore the size of the files is reduced; Android. Mk rules and an Android compiling method do not need to be learned; the problem of the difference between the library files of the Android system and library files of a standard Linux system is solved.
Owner:SONOSCAPE MEDICAL CORP

Radiation source signal identification method combining two-domain multi-features

ActiveCN111160171AImproved nonlinear time-frequency featuresGood time-frequency resolutionCharacter and pattern recognitionNeural architecturesHilbert huang transformationComputational physics
The invention belongs to the field of information detection, and particularly relates to a two-domain multi-feature combined radiation source signal identification method, which comprises the following steps of: performing short-time Fourier transform, improved Wigner time-frequency distribution transform and Hilbert-Huang transform on a radiation source signal to obtain three time-frequency feature images; respectively extracting Green single-channel images of the three time-frequency characteristic images, and carrying out channel fusion on the three Green single-channel images to obtain a new characteristic image. According to the invention, a new three-dimensional time-frequency image is obtained by adopting a multi-time-frequency image channel fusion means. The short-time Fourier transform reflects the linear time-frequency characteristic of the signal; the improved Wigner distribution reflects the nonlinear time-frequency characteristics of signals, Hilbert-Huang transform is notrestricted by the Hessian Bourger measurement inaccuracy principle, a good time-frequency resolution is achieved, a new three-dimensional time-frequency image obtained through channel fusion can represent time-frequency information of the signals more comprehensively, and the reliability of the system is improved.
Owner:HARBIN ENG UNIV

Power fault intelligent analysis and inversion system and method

The invention provides a power fault intelligent analysis and inversion system and method, and the method comprises the steps: carrying out the ordered arrangement and graphic display of fault information on a time axis; restoring the information of the whole fault system; enabling a file generation module to form a CFG file, a DAT file, a DMF file and an HDR file through the restored information, thereby forming a COMTRADE file, wherein the file generation module, a fault intelligent analysis module, an accident reversion module, a fault positioning module, a time sequence logic module and a man-machine interaction module are connected sequentially; sequentially carrying out the fault intelligent analysis, accident reversion, fault positioning and time sequence editing according to the files generated by the file generation module; and transmitting a fault diagnosis result to an operator through the man-machine interaction module. Therefore, the method solves problems that the relay protection fault analysis data is scattered in different and relatively independent systems and there is currently no complete system for integrating the data collected by independent systems. The invention belongs to the field of power systems.
Owner:GUIYANG POWER SUPPLY BUREAU OF GUIZHOU POWER GRID CO LTD

Mobile augmented reality searching method, client, server and searching system

The invention discloses a mobile augmented reality searching method, a client, a server and a searching system. The mobile augmented reality searching method comprises the following steps: a mobile augmented reality server receives an augmented reality target searching request sent by a mobile augmented reality client; the mobile augmented reality server searches a returned augmented reality target in need of being identified according to a searching parameter carried in the augmented reality target searching request; the mobile augmented reality server searches the augmented reality target related to the searched augmented reality target; the mobile augmented reality server returns the searched information of the augmented reality target to the mobile augmented reality client. With the adoption of the mobile augmented reality searching method, the mobile augmented reality client, the mobile augmented reality server and the mobile augmented reality searching system provided by the invention, the problem that a searching result is incomprehensive, caused by the fact that targets in a request are searched, in prior art can be solved, so that the technical effect that searched information in an augmented reality application is more comprehensive is enhanced. Therefore, a user can obtain more comprehensive augmented reality information, and the user experience of the augmented reality application can be improved.
Owner:ZTE CORP

Pharmaceutical composition for treating cancers, pharmaceutical preparation as well as applications and production methods thereof

The invention relates to a pharmaceutical composition for treating cancers, a pharmaceutical preparation as well as applications and production methods thereof. The pharmaceutical composition and the pharmaceutical preparation respectively contain a ginseng monomer component, an Astragalus root monomer component, a manyprickle acanthopanax monomer component and a blister beetle monomer component as well as optionally blister beetle monomer derivatives which are added as required. Preferably, the pharmaceutical composition and the pharmaceutical preparation contain 200 to 300 parts by weight of ginseng saponin monomer, 48 to 72 parts by weight of Astragalus root monomer, 60 to 90 parts by weight of manyprickle acanthopanax monomer and 4.2 to 6.3 parts by weight of blister beetle monomer. The pharmaceutical preparation is prepared by the conventional preparation process from the Chinese medicine extracts mentioned above and optionally blister beetle monomer derivatives in addition with adjuvant materials. The pharmaceutical composition and the pharmaceutical preparation thereof, provided by the invention, are used for treating various cancers, such as primary liver cancer, lung cancer, rectal cancer, malignant lymphoma and gynecological malignant tumors, show unexpected curative effects, and can achieve both cancer therapy and immunity enhancement and at the same time reduce the toxicity.
Owner:GUIZHOU YIBAI PHARMA CO LTD

Promotion information attribute data acquiring method and device

The invention discloses a promotion information attribute data acquiring method and device. The promotion information attribute data acquiring method includes that acquiring the keyword information and first domain name of first promotion information; acquiring one or more promotion display data corresponding to the keyword information from a data system; counting a plurality of probability data of the first domain name and each second domain name; acquiring the ranking data of the first domain name and each second domain name, wherein the ranking data is used for indicating the position relationship between the first promotion information corresponding to the first domain name and the second promotion information corresponding to each second domain name in each promotion display data; outputting each probability data and ranking data to obtain the attribute data of the first promotion information. The promotion information attribute data acquiring method and device solve the problem of the prior art that the relational data between promotion information of a user and a competitor on a search engine are not comprehensive; the promotion information attribute data acquiring method and device realize to comprehensively acquire the relational data between the promotion information of the user and the competitor.
Owner:BEIJING GRIDSUM TECH CO LTD

Data expansion inquiry method, electronic device and computer-readable storage medium

The invention discloses a data expansion inquiry method, an electronic device and a computer-readable storage medium. Identifying one or more query keywords in the query request; Expanding the one ormore query keywords to obtain extended keywords; The query results are queried and displayed according to the query keywords and the extended keywords. The scheme solves the problem of incomplete query results in the existing data query process, and achieves the technical effect of effectively improving the integrity and comprehensiveness of the query results.
Owner:ONE CONNECT SMART TECH CO LTD SHENZHEN

Artificial intelligence medicine selling device based on Internet technology and using method thereof

The invention discloses an artificial intelligence medicine selling device based on the Internet technology and a using method thereof. The artificial intelligence medicine selling device comprises aself-service medicine selling machine body and a medicine selling system. The self-service medicine selling machine body comprises a cabinet body, an LED display screen is arranged at the top of the surface of the cabinet body, a camera is arranged at the bottom of the LED display screen, a touch display screen is arranged at the bottom of the camera, and a code scanner is arranged on one side ofthe touch display screen. The medicine selling system comprises a processor, a database, a medicine outlet module, a payment module, an inspection module, a management module, a power supply module, aself-service medicine taking module, a shopping guide inquiry module, a self-service medicine purchasing module and a communication module. The device has the advantages that needed medicine can be obtained quickly, professional medication guidance is obtained through quick inquiry, the intelligent terminal is convenient, quick, practical and efficient, and the problem that the intelligent terminal does not cover people completely is effectively solved.
Owner:重庆康伲乐医药科技有限公司

Method for identifying target in water

The invention discloses a method for identifying a target in water. Wavelet packet decomposition threshold denoising is combined with component difference optimization to finish preprocessing of the radiation noise signal; the problem that ocean background noise affects radiation noise time-frequency feature extraction and interference classification and identification is solved; mapping from a one-dimensional sequence signal to a two-dimensional space is achieved by adopting a wavelet transformation method; the problem that a single time domain or frequency domain characteristic representation signal is not comprehensive is avoided; two-dimensional variational mode decomposition is carried out on the time-frequency characteristics; the interference problem of a two-dimensional space noisesignal is solved; feature optimization is carried out on the obtained intrinsic mode component and a signal is constructed according to the feature optimization, characteristic enhancement of time-frequency characteristics is achieved, two-dimensional variation modal decomposition is carried out through employing an edge mirror image method, a signal oscillation problem caused by an edge effect is avoided, gradient descent training is carried out on a small sample data set to update parameters of a classification discriminator of the deep neural network, and the characteristic extraction model is made to have excellent generalization capability.
Owner:XI AN JIAOTONG UNIV

Control method of automatic material charging bag applicator

The invention discloses a control method of an automatic material charging bag applicator. The control method is characterized in that the material charging bag applicator is adopted to pick up and open a packaging bag, the packaging bag is transversely placed on a bag placing tray of an X-axis conveying device for conveying, the X-axis conveying device conveys the packaging bag to an operation station of a remaining bag supporting mechanism, and a remaining bag tray of a Y-axis supporting device moves outwards in the Y-axis direction and is connected into the bottom of the packaging bag in aninserting mode; and the packaging bag is transversely placed on the remaining bag tray of the Y-axis supporting device, a guide suction bag mechanism is used for upwards lifting the side edge of thepackaging bag, a bag taking device of a bag grabbing mechanical arm clamps the side edge of the lifted packaging bag, and a bag opening device is used for adsorbing and opening the opening of the packaging bag so as to enable the packaging bag to receive materials. According to the control method of the automatic material charging bag applicator, conveying, bag taking and bag opening of the packaging bag are effectively achieved, the working efficiency is improved, and relatively good practicability is achieved.
Owner:成都鸿源锦程机器人有限公司

Interactive shopping method and system

The invention provides an interactive shopping method and system. The method comprises the steps that if a user reaches a preset distance, the location information of the user is acquired; first response data used for displaying reminder information which reminds the user to use an interactive shopping system are generated based on the location information; the reminder information is displayed according to the first response data; if the user carries out shopping, the operation information of the user is acquired; second response data used for displaying shopping information are generated according to the operation information and a preset determination rule; and the shopping information is displayed according to the second response data. According to the invention, the problems of unsuitable online shopping and troublesome offline shopping in the prior art are solved; offline shopping and online shopping are combined; and the interactive shopping method and system have the advantages of offline experience, online purchase and convenient operation, and provide the user with a perfect shopping experience.
Owner:无锡创思感知科技有限公司

Vehicle management method and system based on wireless geomagnetic detection

The invention relates to a vehicle management method and system based on wireless geomagnetic detection. The method comprises a step of carrying out grid setting on a parking space and forming a coordinate grid parking space, a step of scanning the whole grid parking space and recording the coordinate information of the parking space, a step of tracking and recording movement coordinate information of wheels in grids in real time when the vehicle enters into a side line of the parking space, and a step of filtering continuous information and sending the filtered information to a base station. The invention also relates to a system which comprises a parking space setting unit, a geomagnetic detection unit and an information processing unit. Through a mode of carrying out grid coordinate calibration in a field of the vehicle parking space in the invention, the geomagnetic detection can only carry out information collection on the vehicle accurately, and the vehicle is not interfered by other vehicles or other geomagnetic detection.
Owner:SHENZHEN SHENGLU IOT COMM TECH CO LTD

Pharmaceutical composition for treating metrorrhagia and metrostaxis, pharmaceutical preparation and application and preparation method of pharmaceutical preparation

The invention relates to a pharmaceutical composition for treating metrorrhagia and metrostaxis, a pharmaceutical preparation and application and a preparation method of the pharmaceutical preparation. The pharmaceutical composition and the pharmaceutical preparation contain single components of radix notoginseng, rhizoma paridis and herba cirsii, preferably contain notoginsenoside r1, dencichine, polyphyllin ii, polyphyllin I and linarin. The preparation method comprises the following steps: adding auxiliary materials to the selected medicinal material extracts, and preparing the pharmaceutical preparation by adopting the conventional preparation technology. The pharmaceutical composition and the pharmaceutical preparation prepared thereby acquire an unexpected treatment effect when being applied to treat various gynecological diseases such as metrorrhagia and metrostaxis, morbid leucorrhoea, functional uterine bleeding, blood heat and blood stasis and the like, and the technical difficulty that the toxicity is high while the metrorrhagia and metrostaxis disease is treated can be solved.
Owner:张孝珍

A Sampling and Measuring Method of Pollution Degree of Insulators

The invention discloses a method for sampling and measuring the pollution degree of insulators. The method proposes a cleaning and sampling method for washing with a pressure water spray can, and adds the item of measuring ash density during the measurement process, which solves the problem of incomplete pollution degree measurement items , so that the test results are more in line with the real situation, and the invention also discloses a specially designed set of sampling funnel device, which is light and easy to carry to the site for sampling.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST

Naked eye three-dimensional display system, splicing display device and generation method

PendingCN113138471ASolve incomplete problemsAvoid Display Resolution IssuesInstrumentsMedicineComputer graphics (images)
The invention relates to a naked eye three-dimensional display system, a splicing display device and a generation method, and belongs to the technical field of display, and the system comprises a projection device which is used for projecting to-be-displayed image information; a splicing display device which is used for carrying out light field information reconstruction on the image information so as to carry out three-dimensional display on the image information on n viewpoints; wherein the splicing display device comprises at least two splicing sub-modules which are spliced in the same plane, and each splicing sub-module corresponds to n viewpoints. The problem that the display resolution of the naked eye three-dimensional display system is reduced due to the fact that the projection breadth of the projection device is larger than the receiving breadth of the display device can be avoided; the splicing sub-modules can be spliced according to the projection breadth of the projection device to obtain the splicing display device, so that the projection breadth of the projection device can be ensured to be smaller than or equal to the receiving breadth of the splicing display device, and the problem of incomplete display information is solved.
Owner:SVG TECH GRP CO LTD

Flight control system function fault analysis method based on use scene model

The invention provides a flight control system function fault analysis method based on a use scene model, and the method comprises the following steps: S1, constructing a use scene model, and determining a corresponding relation between a use scene and an activity; s2, constructing a system function model, and determining a corresponding relationship between activities and functions and a system function architecture; s3, fault logic relation modeling: defining function, activity and scene fault states through model extension, and respectively establishing a function internal fault logic relation, a function fault-activity fault logic relation and an activity fault-scene fault logic relation; and S4, carrying out system function fault analysis based on the fault logic model, and determining a function fault or combination influencing the task. According to the method, the problem that a traditional function fault analysis method is inaccurate and incomplete is solved, and key function fault recognition influencing safety and tasks is automatically carried out through a fault rebroadcasting chain of function-activity-scene.
Owner:CHINA AERO POLYTECH ESTAB

Raw oyster purification process capable of realizing real-time monitoring and multi-element purification

The invention discloses an uncooked oyster purification process capable of realizing real-time monitoring and multi-element purification, which comprises the following steps: S1, collecting and purchasing raw materials, detecting whether the surfaces of the collected and purchased oysters are neat and whether shells of the collected and purchased oysters are broken, opened and compounded with double bodies of the oysters, performing the next step on the qualified oysters, and returning the unqualified oysters or transferring the unqualified oysters to other processing workshops; s2, the qualified oysters are conveyed into an oyster purification pond, and a water supply system is connected into the oyster purification pond; and S3, purification is conducted, specifically, the oysters are subjected to purification management in the purification pond for 48 hours for multi-element purification of fungi, heavy metal, sludge, parasites and the like, and a drainage system is arranged in the purification pond. According to the invention, the problem that no professional purification equipment and technology capable of reaching the international standard exist in the uncooked oyster eating industry can be solved, the technology can be used for carrying out dead-corner-free sterilization on seawater, the PH value, salinity, temperature and flow of the purified seawater can be monitored in real time, and oysters can be well cleaned and classified, so that the oysters can reach the uncooked oyster eating quality required by European Union.
Owner:山东波士生蚝海洋生物科技有限公司

Defense strategy generation method and system for industrial control system

ActiveCN113132405ASolve the complexity of evaluation indicatorsSolve incomplete problemsResourcesTransmissionDecision modelReal-time computing
The invention discloses a defense strategy generation method for an industrial control system, and the method comprises the steps: receiving an attack signal and a corresponding attack behavior data packet; updating a risk coefficient table, a physical layer equipment data table, an information layer equipment data table, a physical layer equipment data table counter and an information layer equipment data table counter which are established in advance according to the attack object type corresponding to the attack signal; and obtaining the updated risk coefficient table, a physical layer equipment data table, an information layer equipment data table, a physical layer equipment data table counter and an information layer equipment data table counter, and inputting the updated risk coefficient table into the established decision model to obtain an optimal defense strategy. According to the invention, the technical problem that the existing industrial control intrusion response system in the existing industrial control field is mostly a semi-automatic intrusion response system and a static intrusion response system and the response mechanism is not intelligent enough can be solved.
Owner:HUNAN UNIV

Invoicing method and device, storage medium and electronic equipment

The invention relates to an invoicing method and device, a storage medium and electronic equipment. The method comprises the steps of: receiving an invoicing request message sent by a terminal through a server, wherein the invoicing request message comprises a preset purchaser identifier with a preset character number, and the preset character number is smaller than the number of all characters corresponding to the preset purchaser identifier; obtaining a preset number of candidate enterprise business card information from a pre-generated enterprise business card database according to the preset purchaser identifier of the preset character number, wherein the enterprise business card database comprises enterprise business card information of a plurality of enterprises; and sending the preset number of candidate enterprise business card information to the terminal, thereby enabling the terminal to determine target enterprise business card information from the preset number of candidate enterprise business card information, and issuing an invoice according to the target enterprise business card information.
Owner:AEROSPACE INFORMATION

Scientific and technological resource similar word retrieval method based on multiple dimensions, and electronic equipment

The invention provides a Scientific and technological resource similar word retrieval method based on multiple dimensions, and electronic equipment, and the method comprises: obtaining a pre-constructed scientific and technological resource knowledge base, wherein scientific and technological resource entity words are stored in the scientific and technological resource knowledge base, and at least one group of scientific and technological resource entity words have a similar relationship; obtaining a search word input by a user; and performing first-dimensional similarity relationship judgment, second-dimensional similarity relationship judgment or third-dimensional similarity relationship judgment on the search word. According to the retrieval method and the electronic equipment disclosed by the invention, the problem that scientific researchers cannot accurately and comprehensively master interdisciplinary professional words is effectively solved, and the difficulty of interdisciplinary retrieval of scientific and technological achievements is effectively reduced.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Stock right financing platform risk judgment method and system

The invention relates to the field of financial platform risk analysis, in particular to an equity financing platform risk judgment method and system, and the method comprises the steps: setting a risk index system for judging an equity financing platform, a risk item, and a risk judgment standard corresponding to the risk item; analyzing the stock equity financing platform needing risk judgment to obtain a first index corresponding to the risk item, judging whether the first index hits the risk judgment standard or not, and setting a risk mark for the first index according to the judgment; setting a risk model formula, and calculating the risk marking line according to the risk model formula to obtain a marking result; formulating a risk level model according to the risk index system, comparing a marking result with the risk level model, and outputting an actual risk level. The risk index system composed of the risk item risk judgment standard and the risk marks well solves the problem that risk judgment of an existing stock equity financing platform is unreliable and incomplete, and the comprehensive and targeted technical effect is achieved.
Owner:中科天玑数据科技股份有限公司 +1

Method of converting phlorizin into phloretin

The invention provides a method of converting phlorizin into phloretin, comprising the steps of dissolving a raw material containing phlorizin in ethanol or water solution; adding a mixture of cellulase complex and pectinase complex, allowing enzymatic hydrolysis to occur at 45-55 DEG for 19-96 hours, deactivating after enzymatic hydrolysis, and carrying out solid-liquid separation to obtain finished phloretin. The use of the mixture helps solve the problem that a single enzyme experiences incomplete enzymatic hydrolysis; phlorizin conversion rate is increased; phlorizin conversion rate can beincreased to 95% and above. The phloretin converted herein is white; the traditional process steps that, for instance, acid hydrolysis process requires discoloring are omitted, and production cost isfurther reduced.
Owner:GUILIN NATURAL INGREDIENTS CORP

Sample component analysis method, apparatus and device, and storage medium

The invention discloses a sample component analysis method, apparatus and device, and a storage medium. The method comprises the steps of obtaining a focused image sequence collected based on a to-be-detected sample; wherein the focusing image sequence comprises at least two focusing images; determining at least one image block corresponding to each focused image, and determining the definition corresponding to each image block based on the image block parameter corresponding to each image block; based on the definition corresponding to each image block, performing fusion operation on the at least two focusing images to obtain a target analysis image; and executing a sample component analysis operation on the target analysis image to obtain a sample component analysis result corresponding to the to-be-detected sample. According to the embodiment of the invention, the problem of incomplete image information in the target image of a single focusing layer is solved, and the accuracy of a sample component analysis result is ensured.
Owner:COBIO SMARTER HEALTHCARE TECH

A defense strategy generation method and system for industrial control systems

The invention discloses a method for generating a defense strategy for an industrial control system, comprising: after receiving an attack signal and a corresponding attack behavior data packet, the pre-established risk coefficient is calculated according to the attack object type corresponding to the attack signal Table, physical layer device data table, information layer device data table, physical layer device data table counter and information layer device data table counter are updated to obtain the updated risk factor table, physical layer device data table, and information layer device data table , physical layer device data table counters and information layer device data table counters, and input the updated risk coefficient table into the established decision model to obtain the optimal defense strategy. The invention can solve the technical problem that the existing industrial control intrusion response systems in the existing industrial control field are mostly semi-automatic intrusion response systems and static intrusion response systems, and the response mechanism is not intelligent enough.
Owner:HUNAN UNIV

Method and device for acquiring promotional information attribute data

The invention discloses a promotion information attribute data acquiring method and device. The promotion information attribute data acquiring method includes that acquiring the keyword information and first domain name of first promotion information; acquiring one or more promotion display data corresponding to the keyword information from a data system; counting a plurality of probability data of the first domain name and each second domain name; acquiring the ranking data of the first domain name and each second domain name, wherein the ranking data is used for indicating the position relationship between the first promotion information corresponding to the first domain name and the second promotion information corresponding to each second domain name in each promotion display data; outputting each probability data and ranking data to obtain the attribute data of the first promotion information. The promotion information attribute data acquiring method and device solve the problem of the prior art that the relational data between promotion information of a user and a competitor on a search engine are not comprehensive; the promotion information attribute data acquiring method and device realize to comprehensively acquire the relational data between the promotion information of the user and the competitor.
Owner:BEIJING GRIDSUM TECH CO LTD

Acquisition method, device, atm and storage medium of banknote pattern data

The embodiments of the invention disclose an acquisition method and a device of paper money pattern data, an ATM and a storage medium. The method comprises the following steps of using a light sourcecorresponding to a first exposure condition to irradiate the front surface of paper money to be detected so that the front surface of the paper money to be detected presents an illumination pattern, and acquiring the illumination pattern data of the front surface of the paper money to be detected; and using the light source corresponding to a second exposure condition to irradiate the reverse sideof the paper money to be detected so that the reverse side of the paper money to be detected presents the illumination pattern, and acquiring the illumination pattern data of the reverse side of thepaper money to be detected. A problem that illumination pattern data acquired when financial equipment adopts a same exposure condition to irradiate the paper money is incomplete in the prior art canbe solved; the illumination pattern data of the two sides of the paper money can be effectively acquired; accuracy of acquiring the paper money illumination pattern data is increased; and high reliability information is provided for paper money authenticity identification.
Owner:SHENZHEN YIHUA COMP +2

A Radiation Source Signal Recognition Method Combining Two Domains and Multiple Features

ActiveCN111160171BImproved nonlinear time-frequency featuresGood time-frequency resolutionCharacter and pattern recognitionNeural architecturesHilbert huang transformationComputational physics
The invention belongs to the field of information detection, and specifically relates to a radiation source signal identification method combining two domains and multiple features, comprising the following steps: performing short-time Fourier transform on the radiation source signal, improved Wigner time-frequency distribution transform and Greek Albert-Huang transform to obtain three kinds of time-frequency feature images; extract the Green single-channel images of three kinds of time-frequency feature images respectively, and carry out channel fusion of three kinds of Green single-channel images to obtain new feature images; the present invention adopts multi-time-frequency images A new three-dimensional time-frequency image is obtained by means of channel fusion. The linear time-frequency characteristics of the short-time Fourier transform response signal, the nonlinear time-frequency characteristics of the improved Wegener distribution response signal, the Hilbert-Huang transform is not restricted by the Heisenberg uncertainty principle, and has a good time Frequency resolution, the new three-dimensional time-frequency image obtained by channel fusion can more comprehensively represent the time-frequency information of the signal and improve the reliability of the system.
Owner:HARBIN ENG UNIV
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