Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
44 results about "Matrix function" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
In mathematics, a matrix function is a function which maps a matrix to another matrix.
Systems and methods for controlling brightness of an avionics display
InactiveUS6841947B2Wide rangeAdversely effect readabilityElectrical apparatusStatic indicating devicesAmbient lightingDisplay device
The present invention provides for systems and methods for dimming a LED matrix functioning as a backlight to an avionics display. A system according to an embodiment of the present invention comprises a processor for receiving inputs of ambient lighting and temperature, as well as light generated by the LED matrix. The processor provides modulated pulse wave signals (square waves) to two control circuits for controlling the LED matrix in two modes. At low dimming levels, the processor modulates the duty cycle of a first square wave for affecting the light level and maintains a minimal duty cycle of a second square wave. Once the highest light level is obtained by increasing the duty cycle of the first square wave, the processor then modulates a second square wave by increasing its duty cycle. The duty cycle of the second square wave is modified by a circuit to produce a voltage level which is provided as an input to control light level of the LED matrix. As the duty cycle of the second signal is increased, so is the voltage level provided to the LED matrix and the light generated by the LED matrix.
Owner:GARMIN AT
Method for Calculating Functions of the Channel Matrices in Linear Mimo-Ofdm Data Transmission
InactiveUS20080317141A1More computationally efficientPotential for computational savings is particularly largeSecret communicationRadio transmissionAlgorithmMatrix function
The present application describes a method for transmitting data through a MIMO-OFDM system which requires the computation of a function f(H(sk)), where H is the channel matrix and sk=exp(j*2*pi*k / N). The method splits function f into a first, nonpolynomial part, which is in turn a function of one or more polynomial functions in sk.
Owner:ETH ZURICH ETH TRANSTER
Processing method applicable to network video monitoring of digital light processing (DLP) multi-screen splicing display wall
InactiveCN101986702AAvoid work overloadWith digital matrix functionClosed circuit television systemsDigital output to display deviceDigital signal processingVideo monitoring
The invention relates to a processing method applicable to network video monitoring of a digital light processing (DLP) multi-screen splicing display wall. In the method, each display unit is provided with a built-in personal computer (PC) which performs single-image and multi-image signal processing on a remote-end IP camera signal, and the processing process comprises the following steps: a network camera is started; the display unit of the built-in PC is started; the built-in PC in the display unit automatically starts a client; the display unit monitors and plays the camera signal; a built-in splicing processor of the DLP multi-screen splicing display wall finishes image splicing and amplifies, minifies and moves the signal; the DLP multi-screen splicing display wall displays the processed signal; and multi-channel signals are displayed by repeating the steps. Compared with the prior art, the method of the invention has low cost, is simple in construction and can ensure infinite increase of the number of monitoring signal sources along with digital matrix functions, and the like.
Owner:赛丽电子系统(上海)有限公司
Method for detecting fatigue driving around clock
InactiveCN103268479AImprove adaptabilityContrast EqualizationCharacter and pattern recognitionPretreatment methodMatrix function
The invention provides a method for detecting fatigue driving around the clock. A camera is used for acquiring a human face image to primarily position the eyes of a person; afterwards, a human eye image which is well processed by light is obtained through light preprocessing, then the human eye image is matched with a trained human eye template, and therefore the state of opening and closing of human eyes is acquired; at last, a driver is judged whether to be fatigue or not through a PERCLOS fatigue judging criterion. A light preprocessing method with the contrast ratio balanced is provided, variation of image light and dark areas is used, a convolution operation is conducted according to a convolution operation function and a Gaussian difference function, and therefore contrast ratio balance is achieved. Furthermore, the invention provides a human eye positioning method with multi-feature fusion. The advantages of various features are used, fused features can more effectively present a detected object, detecting is more accurate, and adaptability is stronger.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Laser emitting material, method for making the same and use thereof
InactiveUS20070091967A1Low thresholdActive medium materialOptical light guidesLaser dyeHost material
A solid-state laser emitting material for use in conjunction with a light source includes a polymer matrix functioning as host materials, containing laser dye of rhodamine 590 or rhodamine 610 as gain materials and nano-submicron particles as scatters therein. The lowest lasing threshold of the laser emitting material is approximately 5 mJ / cm2 for 585 nm emission and 2 mJ / cm2 for 630 nm emission.
Owner:THE HONG KONG POLYTECHNIC UNIV
Multi-target robust frequency control method for independent micro-grid system
ActiveCN106130066AHigh optimization tuning efficiencySmooth output signal valueSingle network parallel feeding arrangementsWind energy generationSystem matrixEngineering
The invention discloses a multi-target robust fractional frequency control method for an independent micro-grid. Small signal frequency response models of various components of an independent micro-grid system are built through a small signal modeling method; a robust loop shaping fractional frequency control model of the independent micro-grid system is built on the basis of the small signal frequency response models; the minimum accumulated sum of products of frequency deviations of the independent micro-grid system and time, the minimum accumulated sum of the products of power deviations of the system and the time, the minimum infinite norm of a robust loop shaping system matrix function and the minimum output signal value of a robust controller are taken as optimized objective functions for estimating the performance of the robust frequency controller; and an adaptive multi-objective constraint optimization solver is designed for efficiently achieving optimal setting of robust loop shaping frequency control parameters by employing the conditions that a robust stability performance index and an interference suppression performance index are smaller than 1 as constraint conditions. By the multi-target robust frequency control method for the independent micro-grid, robust frequency control on multi-performance index compromise optimization of the independent micro-grid system can be achieved.
Owner:WENZHOU UNIVERSITY
Method and system for realizing video matrix function
ActiveCN101873441ARealize centralized managementImplement configurationTelevision system detailsColor television detailsCentralized managementMatrix function
The invention discloses a method and a system for realizing a video matrix function. One decoder in a video matrix is a master decoder, while the other decoders are slave decoder, wherein the master decoder is used for maintaining decoding channel information of the master decoder and each slave decoder and each piece of encoding channel information at the front end. The method comprises the following steps of: detecting and receiving serial port data by using the master decoder; analyzing the serial port data and determining a control type; according to the serial port data, the decoding channel information of the master decoder and each slave decoder and each piece of encoding channel information at the front end, determining a control command and a control object; and transmitting the control command to the control object to realize the video matrix function corresponding to the control type. Through the method and the system, the centralized management and configuration of the decoders can be realized, so that the video matrix function can be realized by adopting a digital method and the engineering complexity can be reduced.
Owner:HANGZHOU HIKVISION DIGITAL TECH
MIMO transmission power distribution optimizing method based on robustness design
The invention provides an MIMO transmission power distribution optimizing method based on robustness design. Firstly, convexity-concavity of a matrix function is utilized, a power distribution matrix is optimized to be a diagonal matrix and the diagonal matrix is simplified to be a scalar function. Consequently, the scalar function is combined to perform optimization on MIMO transmission power distribution. During optimization of MIMO transmission power distribution, the optimal solution without limited conditions is found out and then adjusted in a fine mode. The algorithm convergence and low operation quantity are ensured. Compared with an ordinary optimal solution obtaining algorithm, the MIMO transmission power distribution optimizing method based on the robustness design can obtain the optimal solution with little operation cost. In addition, as a reference value of power distribution is fixed in the first step, the problem of algorithm divergence does not exist.
Owner:SOUTHEAST UNIV
Environmental simulator for high-speed communicating network
The invention comprises MCU, FPCA, keyboard, liquid crystal screen, memory, PC interface and eight communication node interfaces. The MCU makes system control, and converses the key assignment into matrix function to generate control signal, error -selecting signal and speed-selected signal. FGGA is used to implement the main function of simulator, and to make synchronous or asynchronous series connection with the eight channel node interface. The matrix control signal from MCU controls the data current direction to form a switch matrix, and to normalize the variable channel character into multi error code rates. The error-selected signal is used to control error code selection, load composition, and to output error flow analog characteristic. The communication speed selected signal is used to control and generate clock signal of communication speed and sequence control signal.
Owner:XIDIAN UNIV
Real-time extraction and update method of background image in motion video
InactiveCN101739689AFast and accurate detectionFast and Accurate TrackingImage analysisTime domainMatrix function
The invention discloses a real-time extraction and update method of background image in motion video, belonging to the technical field of digital image processing. The method utilizes the different change properties of the background image and a motion object image in the time domain to construct the stable matrix function of the image, automatically distinguishes background spots and foreground spots through the change of factors in the stable matrix, sets the highest and lowest saturation values for the stable matrix, so that the algorithm can automatically perceive the sudden change of the background in a short time, thus quickly establishing a background image model and carrying out real-time update. The invention has the beneficial effect that the method can quickly obtain the stable background image so as to quickly and accurately accomplish detection of the motion object.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Magnetic levitation bearing robust controller construction method based on multi-objective genetic algorithm
The invention belongs to the electrical control technology field, relates to the robust control technology field and especially relates to a magnetic levitation bearing robust controller constructionmethod based on a multi-objective genetic algorithm. The method is characterized by summarizing the general formula of a robust controller weight matrix function and limiting the range of a weight function parameter; and giving the adjustment direction of manual weight parameter adjustment, and solving the blindness of a beginner choosing a robust controller weight function. In the invention, a multi-objective genetic algorithm is further adopted to optimize the weight function parameter and a designer can compromise between closed loop response performance and a control signal according to anactual demand so as to acquire an optimal robust H-infinite controller under two objectives. A user does not need to grasp excess professional knowledge and can easily and reasonably construct the robust H-infinite controller suitable for an axial (a single degree of freedom) magnetic levitation bearing system.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Improved ICCP underwater geomagnetic matching method based on triangle matching algorithm
InactiveCN111397599AHigh precisionImprove robustnessNavigational calculation instrumentsNavigation by terrestrial meansUnderwaterSwarm algorithms
The invention discloses an improved ICCP underwater geomagnetic matching method based on a triangular matching algorithm, and provides an improved ICCP algorithm for optimizing and estimating an air route by using a constrained particle swarm algorithm. The method comprises the following steps: constructing a triangular matching model, determining a matching search range of an estimation point, and obtaining a constraint condition of a constrained particle swarm algorithm; utilizing a matrix function obtained by rigid rotation and translation transformation among different triangles to mathematize the influence of accumulative errors of a navigation system on the matching precision, and defining a matching degree principle among different triangles to obtain another constraint condition for the constrained particle swarm algorithm; and obtaining a minimum Euclidean distance between two mass center points of a matched triangle and an inertial navigation indication triangle by using theconstrained particle swarm optimization algorithm, obtaining an update point as a determination point of the next cycle, and sequentially iterating to plan a final air route. The utilization rate of underwater geomagnetic information is improved, and the influence of principle defects and inertial navigation accumulative errors of the ICCP matching algorithm on the matching precision is reduced.
Owner:HOHAI UNIV
Spliced screen system and implementation method thereof
The invention provides a spliced screen system and an implementation method thereof. An inner-loop signal processing chip for converting a specified local audio / video signal received by a local video signal interface into a DP signal is arranged in each splicing unit. On one hand, the DP signal output by the inner-loop signal processing chip is converted into an LVDS signal, and on the other hand, the DP signal is output to a core processing chip of a next splicing unit which is connected with a DP output interface through the DP output interface, so that an internal matrix function of a spliced screen and an echo function of playing back a whole spliced screen display image onto a monitor of a remote control end in real time are realized. Additional separate configuration of a matrix module and a signal distributor module for the spliced screen is not required; convenience is brought to remote control of the spliced screen; the installation cost is lowered; and the defects of frame loss and delay of transmitted signals are overcome.
Owner:SHENZHEN HUASHENG SOFTWARE TECH CO LTD +1
Low Noise Color Correction Matrix Function In Digital Image Capture Systems And Methods
ActiveUS20070263264A1Easy to processImage enhancementColor signal processing circuitsLow noiseImaging processing
An image processing system includes a filtering arrangement configured to receive incoming pixel information and filter at least a first portion of the information to thereby pass a second portion of the information for further processing; circuitry configured to apply a first color correction function to the incoming pixel information to thereby produce a modified first portion; circuitry configured to apply a second color correction function to the second portion to thereby produce a modified second portion; and an adder configured to combine the modified first portion to the modified second portion.
Owner:TRANSCHIP ISRAEL
Dynamic keyboard matrix function switching method and system
ActiveCN105094349AReduce in quantityReduce maintenance difficultyInput/output for user-computer interactionMatrix functionEmbedded controller
The present invention relates to a dynamic keyboard matrix function switching method and system. The method comprises the following steps: acquiring a keyboard matrix type; and obtaining a corresponding keyboard scan code from a keyboard matrix type and keyboard scan code correspondence table pre-stored in embedded controller codes according to the keyboard matrix type. According to the dynamic keyboard matrix function switching method and system, by identifying the keyboard matrix type, the corresponding keyboard scan code is obtained from the pre-stored keyboard matrix type and keyboard scan code correspondence table for use, so that a set of embedded controller codes are adaptive to a plurality of types of keyboards, the number of the embedded controller codes is reduced, and maintenance difficulty of the embedded controller codes is reduced; and another set of embedded controller codes do not need to be refreshed for changing a keyboard when demands are different, so that work load of repeatedly refreshing the embedded controller codes is reduced, and the probability of errors caused by repeatedly refreshing the embedded controller codes is reduced.
Owner:深圳市研祥慧视科技有限公司
Method, device and system for acquiring useful signal in full-duplex communication
ActiveCN103475396AEfficient acquisitionIncrease flexibilitySpatial transmit diversityTransmission noise suppressionSelf interferenceCommunications system
The invention is applicable to the technical field of communication and provides a method and a device for acquiring a useful signal in full-duplex communication and a full-duplex communication system. The method comprises the following steps: acquiring a base vector and the number of dimensions of a null space of a self-interference channel matrix according to the self-interference channel matrix between a local transmitting antenna and a local receiving antenna in full-duplex communication; acquiring transmitting data flow transmitted in the null space of the self-interference channel matrix and the number of transmitting data flows transmitted in a row vector space of the self-interference channel matrix according to the base vector and the number of dimensions of the null space as well as channel condition and service information; and acquiring a locally-received useful signal according to the transmitting data flow transmitted in the null space of the self-interference channel matrix, a transmission pre-coding matrix function and the self-interference channel matrix when the number of the transmitting data flows transmitted in the row vector space of the self-interference channel matrix is not equal to 0, thereby achieving the purpose of acquiring a useful signal more flexibly.
Owner:HUAWEI TECH CO LTD
Method for making mobile phone handwriting screen concurrently have character input and graphic input
The invention discloses a method to make handwriting screen of mobile phone have functions of character inputting and image inputting. In the storage of the mobile phone, font containing characters and symbols and database containing dot matrix function are set to make MPU of mobile phone access to character input mode and image input mode according to the selected instruction while user is inputting by handwriting pen. When in character inputting mode, MPU can automatically search the corresponding font or symbol according to the inner code of the inputted font or symbol and display onto handwriting screen. When in image inputting mode, MPU can call dot matrix function corresponding to the image and display. Thus, the handwriting screen can not only input normal character and symbol, but also input image.
Owner:INVENTEC(NANJING) TECH CO LTD
Time-varying delay wide-area electric power system stability analysis method
ActiveCN110212522AReduce conservatismAvoid computational burdenComplex mathematical operationsAc network circuit arrangementsWide areaTime lag
The invention discloses a time-lag-dependent matrix function-based time-varying delay wide-area electric power system stability analysis method; according to the method, the stability problem of the wide-area electric power system under the influence of time lag is further researched from the perspective of the functional structure, so as to obtain a conclusion with lower conservative property. The method comprises the following steps that firstly, a novel Lyapunov-Krasovskii function with time-lag-dependent matrix is constructed, and a novel time-lag matrix different from a constant moment isintroduced, so that the time lag information in the electric power system can be more utilized., the influence of the time lag change rate on the stable operation region of the electric power systemis fully considered, a critical effect of reducing the system conservation performance is achieved, and the conservative property of the stability criterion of the electric power system is effectivelyreduced. In addition, the integral term is segmented into two integral sections for segmented treatment, and a functional derivative is analyzed, so that more time lag information is utilized, the conservation of the result is reduced, and meanwhile, the calculation burden caused by excessive segmentation areas can be avoided.
Owner:HENAN POLYTECHNIC UNIV
Ultra-short base line orientation estimation method and system of any formation, equipment and storage medium
ActiveCN110244261AImprove position estimation performanceAvoid phase blurPosition fixationSystems with adjusting phase/time-lag-errorsTarget signalEstimation methods
The invention provides an ultra-short base line orientation estimation method for any formation. The method comprises the steps of initializing a delay adjustment matrix according to a received signal and a delay signal thereof, thus acquiring a delay adjustment matrix function, and initializing a distributed search network; detecting the arrival time of the signals, determining synchronous moments, sampling the synchronous moments, building a synchronous sampling moment set, thus acquiring a reference array element sampling sequence of the signal arrival moments; and computing the rotated distributed search network, computing a matched peak of each direction vector under the synchronous sampling moment set according to the reference array element sampling sequence of the signal arrival moments and the delay adjustment matrix function, and traversing orientation angles, wherein the direction of the maximum matched peak is the final estimated orientation vector. The ultra-short base line orientation estimation method for any formation provided by the invention can be expanded to various complex formations, and is stable in performance when the part of array elements is invalid, and high in estimation accuracy of the distance and orientation of the target signal source.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI
ICC color conversion using GPU
Apparatus and systems, as well as methods and articles, may operate to use a graphics processing unit (GPU) to perform color conversions using International Color Consortium (ICC) profiles. In some embodiments, code is generated for execution by the GPU. The conversion can be represented as a series of steps mapped to particular GPU processes such as 1D texture, 3D texture and matrix functions.
Owner:ADOBE INC
Magnetic levitation bearing robust controller construction method based on multi-objective particle swarm algorithm
ActiveCN108345216AEasy and reasonable structureAvoid blindnessAdaptive controlSingle degree of freedomControl signal
The invention belongs to the electrical control technology field, relates to the robust control technology field and especially relates to a magnetic levitation bearing robust controller constructionmethod based on a multi-objective particle swarm algorithm. The method is characterized by summarizing the general formula of a robust controller weight matrix function and limiting the range of a weight function parameter; and giving the adjustment direction of manual weight parameter adjustment, and solving the blindness of a beginner choosing a robust controller weight function. In the invention, a two-objective particle swarm algorithm is further adopted to optimize the weight function parameter and a designer can compromise between closed loop response performance and a control signal according to an actual demand so as to acquire an optimal robust H-infinite controller under two objectives. A user does not need to grasp excess professional knowledge and can easily and reasonably construct the robust H-infinite controller suitable for an axial (a single degree of freedom) or a radial (multiple degrees of freedom) magnetic levitation bearing system.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Numerical method for order reduction of three-dimensional microwave tube input/output window model based on function approximation adaptive error analysis
ActiveCN107526869AAvoid complexityImprove stabilityDesign optimisation/simulationComplex mathematical operationsComputational electromagnetismAlgorithm
The present invention belongs to the field of computational electromagnetism numerical solution, and provides a numerical method for order reduction of a three-dimensional microwave tube input / output window model based on the function approximation adaptive error analysis. The method is characterized in that: three-dimensional eigenanalysis is carried out on the microwave tube by using a vector finite element method; a complex electromagnetic problem is converted into a large-scale mathematical matrix function equation; a series of reduced-order processing is carried out on the equation, namely, the Chebyshev approximation is used by combining with the error analysis of eigenvalues, interpolation points are adaptively selected, a full-band convergence interval is divided, and the expanded subspace of the reduced order model is obtained; and through post-processing, the final S-parameters can be obtained, so that adaptive optimization and simulation of the full-band of the microwave tube is realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Method and device for determining hydrocarbon production for a reservoir
The present invention relates to a method for determining hydrocarbon production for a reservoir. The method comprisesdetermining a projector matrix based on a Jacobian matrix function of the gridded model, then splitting the Jacobian matrix into subsets of consecutive lines.For each subset of consecutive lines, creating a respective square matrix based on said subset.A determining eigenvectors and respective eigenvalues associated with the respective square matrix and then determining relevant eigenvectors having respective eigenvalues below a predetermined threshold.The projector is determined as a concatenation of the extended eigenvectors ordered according to multiple criteria: the respective order value of the subset; and the respective eigenvalue of the relevant eigenvector.
Owner:ARDYNE HLDG LTD +1
Large-scale video matrix switching board and video processing board connection structure
ActiveCN104796627BReasonable heat dissipationRealize the matrix functionTelevision system detailsColor television detailsVideo processingMatrix function
The invention discloses a large-scale video matrix exchange board and video processing board connecting structure which comprises a video matrix switching board, a video input-output processing board and a video channel connecting board. A first video channel connector is mounted at the upper end of one edge of the video channel connecting board and connected with the video matrix switching board, and two second video channel connectors are mounted in the middle of the other edge of the video channel connecting board and connected with the video input-output processing board. The connecting structure can realize a matrix function while having reasonable heat channels for heat radiation, input-output board cards are compatible with board cards for small-scale matrix cabinets, and the connecting structure does not need to be designed solely, thereby being reasonable in structure.
Owner:深圳市东闽炬创电子有限公司
A video wall system and its realization method
The invention provides a spliced screen system and an implementation method thereof. An inner-loop signal processing chip for converting a specified local audio / video signal received by a local video signal interface into a DP signal is arranged in each splicing unit. On one hand, the DP signal output by the inner-loop signal processing chip is converted into an LVDS signal, and on the other hand, the DP signal is output to a core processing chip of a next splicing unit which is connected with a DP output interface through the DP output interface, so that an internal matrix function of a spliced screen and an echo function of playing back a whole spliced screen display image onto a monitor of a remote control end in real time are realized. Additional separate configuration of a matrix module and a signal distributor module for the spliced screen is not required; convenience is brought to remote control of the spliced screen; the installation cost is lowered; and the defects of frame loss and delay of transmitted signals are overcome.
Owner:SHENZHEN HUASHENG SOFTWARE TECH CO LTD +1
Laser emitting material, method for making the same and use thereof
ActiveUS20090161699A1Low thresholdLaser using scattering effectsActive medium materialLaser dyeHost material
A solid-state laser emitting material for use in conjunction with a light source includes a polymer matrix functioning as host materials, containing laser dye of rhodamine 590 or rhodamine 610 as gain materials and nano-submicron particles as scatters therein. The lowest lasing threshold of the laser emitting material is approximately 5 mJ / cm2 for 585 nm emission and 2 mJ / cm2 for 630 nm emission.
Owner:THE HONG KONG POLYTECHNIC UNIV
Method and device for determining hydrocarbon production for a reservoir
The present invention relates to a method for determining hydrocarbon production for a reservoir. The method comprisesdetermining a projector matrix based on a Jacobian matrix function of the gridded model, then splitting the Jacobian matrix into subsets of consecutive lines.For each subset of consecutive lines, creating a respective square matrix based on said subset.A determining eigenvectors and respective eigenvalues associated with the respective square matrix and then determining relevant eigenvectors having respective eigenvalues below a predetermined threshold.The projector is determined as a concatenation of the extended eigenvectors ordered according to multiple criteria: the respective order value of the subset; and the respective eigenvalue of the relevant eigenvector.
Owner:ARDYNE HLDG LTD +1
Environmental simulator for high-speed communicating network
The invention comprises MCU, FPCA, keyboard, liquid crystal screen, memory, PC interface and eight communication node interfaces. The MCU makes system control, and converses the key assignment into matrix function to generate control signal, error -selecting signal and speed-selected signal. FGGA is used to implement the main function of simulator, and to make synchronous or asynchronous series connection with the eight channel node interface. The matrix control signal from MCU controls the data current direction to form a switch matrix, and to normalize the variable channel character into multi error code rates. The error-selected signal is used to control error code selection, load composition, and to output error flow analog characteristic. The communication speed selected signal is used to control and generate clock signal of communication speed and sequence control signal.
Owner:XIDIAN UNIV
Method, system and device for transmitting encoding indication information and determining precoding matrix
Owner:DATANG MOBILE COMM EQUIP CO LTD
An optimization method for mimo transmission power allocation based on robust design
The present invention proposes a MIMO transmission power allocation optimization method based on robust design. First, the convexity and concavity of the matrix function are used to optimize the power allocation matrix into a diagonal matrix, which is simplified into a scalar function. Then, the MIMO transmission power is calculated based on the scalar function. Allocation optimization. In the MIMO transmission power allocation optimization process, the optimal solution without restrictions is first found, and then fine-tuned to ensure the algorithm's convergence and low computational complexity. The MIMO transmission power allocation optimization method based on robust design provided by the present invention can obtain the optimal solution at a relatively small computational cost compared to the universal optimal solution acquisition algorithm, and in the first step, the optimal solution is obtained. The baseline value of power allocation is fixed, and there is no problem of algorithm divergence.
Owner:SOUTHEAST UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com