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35 results about "Atmospheric measurements" patented technology

Measurement, collection, distribution and reporting of atmospheric data

For improved reliability and relevancy of reporting of atmospheric condition data, faster access to the data, and more geographically granular collection of data, data pertaining to atmospheric conditions is measured at network towers, collected, managed, distributed and presented according to a requested service. Weather data is measured and collected at a granularity greater than previously existing systems by communicatively coupling and generally co-locating weather or atmospheric measuring instruments to existing mobile network towers, and collecting and distributing the data as part of enhanced services for end users. Accordingly, when weather data is collected from the measuring instruments placed on network towers according to the present invention, and aggregated at one or more servers, the weather data may be distributed to end users of the communications networks with greater relevancy. Any of the voice / data, control and broadcast channels of an applicable mobile communications network may be utilized.
Owner:AT&T MOBILITY II LLC

Atmospheric measurement system

An apparatus providing for simultaneous measurement of the wind upstream and downstream of a wind turbine uses either a single LIDAR beam split into two beams, each focused upstream or downstream of the windmill, or a multiple beam LIDAR with a first beam source aimed toward the upstream direction of the wind and a second beam source aimed at the downstream direction after the wind has passed through the wind turbine. The apparatus may also use LIDAR to measure wind direction and speed by making measurements along slightly different lines of sight, or by pointing the LIDAR in different directions. Two lines of sight allow measuring wind direction in the plane defined by the two lines of sight. Three non-coplanar lines of sight provide the information necessary to determine a full 3-dimensional wind velocity vector. Further, LIDAR may also be used to measure wind speed by estimating the wind velocity using inputs from both aerosol and molecular components.
Owner:MICHIGAN AEROSPACE

Device and method for making weather observations using infrared spectral radiometry

A method of weather observations by a constellation comprises at least a first duster of three micro-satellites each orbiting around earth, and each micro-satellites comprises a spectrometer. Orbiting the three micro-satellites of the first duster around the earth in three separate orbits offset with respect to one another. Staggering the three micro-satellites with respect to one another as they orbit. Selecting the offset and the staggering, of each of the three micro-satellites with respect to one another, so that each one of the three micro-satellites have a substantially identical viewing area as each one of the three micro-satellites orbits around the earth. Sequentially collecting observations, from each of the three micro-satellites, as the micro-satellites orbit around the earth and observe substantially identical viewing areas, to separately gather atmospheric measurements and provide critical data for weather forecasting by infrared temperature and humidity soundings and motion vector winds of the earth.
Owner:BAE SYST INFORMATION & ELECTRONICS SYST INTERGRATION INC

Radiance library forecasting for time-critical hyperspectral target detection systems

A method and structure that inputs atmospheric forecast information from the atmospheric forecast database based on current, real time atmospheric measurements. The hyperspectral detection processing unit also inputs at least one selected reflectance library from the reflectance library database, and data collection and sensor parameters from the sensor. With this information, the hyperspectral detection processing unit employs a model to produce at least one mission radiance library during the mission planning phase. Then, during the actual mission execution, the sensor is used to collect the hyperspectral data and the comparator can immediately compare the hyperspectral data to the mission radiance library to identify features and / or targets.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE

Device and system for generating a weather forecast for a selected zone

A method and system configured to provide a weather forecast for a selected zone is provided. The method and system is configured to receive meteorological reports and locally sensed measurements. The information is transmitted to a weather model preprocessor disposed on the device which generates an analysis field. This information is passed to the weather model which is an executable program also disposed on the device. The weather model processes the analysis field generated by meteorological reports, large-scale initialization data and in-situ sensor values to generate an initial weather forecast. The weather model updates the initial weather forecast with real-time, high-resolution atmospheric measurements to generate a weather forecast more representative of the user's zone than that available from Internet / media outlets. Furthermore, because the weather model is run on the mobile device itself, staleness of the forecast will no longer be an issue, as forecasts can be generated on demand.
Owner:UNITED STATES OF AMERICA THE AS REPRESENTED BY THE SEC OF THE ARMY

Direct solar radiation measuring system applied to mobile atmosphere observation platform

The invention provides a direct solar radiation measuring system capable of being applied to a mobile atmosphere observation platform. The direct solar radiation measuring system comprises a mountingbase and a triaxial self-stabilizing platform, wherein the triaxial self-stabilizing platform comprises a gyroscope sensor, a heading direction rotating shaft, a rolling rotating shaft and a pitchingrotating shaft; the pitching rotating shaft is fixedly connected with a mono- / multi- / high-spectral irradiance radiometer, a camera and an attitude sensor, the mono- / multi- / high-spectral irradiance radiometer and the camera are adjacently arranged in parallel and are fixedly connected to form an observation group with the same field of vision; a GPS (Global Positioning System) antenna and an electronic compass are further arranged on the triaxial self-stabilizing platform; a circuit board and a power supply are arranged in the mounting base, and the circuit board is used for controlling movement of the three rotating shafts and receiving, storing and processing data; the power supply is used for supplying power to all sensors, the GPS antenna, the electronic compass and the circuit board onthe triaxial self-stabilizing platform. The measuring system provided by the invention can effectively achieve vehicle-mounted, shipborne and airborne dynamic real-time underway automatic measurementand provides a new automated measuring method for atmospheric measurement.
Owner:田礼乔

Inversion algorithm for moisture absorption growth factor of uniformly mixed aerosol

The invention discloses an inversion algorithm for a moisture absorption growth factor of uniformly mixed aerosol in the field of atmospheric measurement. The inversion algorithm comprises the following steps: S1, selecting data; S2, processing the data: carrying out component decomposition on the atmospheric extinction coefficient, and constructing an objective function taking a uniformly mixed aerosol moisture absorption growth factor as a unique variable by virtue of a Mie scattering theory; S3, inverting the moisture absorption growth factor of the uniformly mixed aerosol, and for all testsamples, quickly converging the immune evolutionary algorithm for inverting the moisture absorption growth factor of the uniformly mixed aerosol to a globally optimal solution; and S4, further establishing a localization model for moisture absorption growth of the uniformly mixed aerosol in autumn and winter in the Chengdu region. Compared with an existing universal aerosol moisture absorption growth model, the model remarkably improves the simulation precision of the aerosol scattering coefficient under the environmental condition; and the inversion algorithm has universality, and can provide algorithm guarantee for subsequent research of aerosol hygroscopicity and radiation forced effect thereof.
Owner:CHENGDU UNIV OF INFORMATION TECH

Radiance library forecasting for time-critical hyperspectral target detection systems

A method and structure that inputs atmospheric forecast information from the atmospheric forecast database based on current, real time atmospheric measurements. The hyperspectral detection processing unit also inputs at least one selected reflectance library from the reflectance library database, and data collection and sensor parameters from the sensor. With this information, the hyperspectral detection processing unit employs a model to produce at least one mission radiance library during the mission planning phase. Then, during the actual mission execution, the sensor is used to collect the hyperspectral data and the comparator can immediately compare the hyperspectral data to the mission radiance library to identify features and / or targets.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE

Device and system for generating a weather forecast for a selected zone

A method and system configured to provide a weather forecast for a selected zone is provided. The method and system is configured to receive meteorological reports and locally sensed measurements. The information is transmitted to a weather model preprocessor disposed on the device which generates an analysis field. This information is passed to the weather model which is an executable program also disposed on the device. The weather model processes the analysis field generated by meteorological reports, large-scale initialization data and in-situ sensor values to generate an initial weather forecast. The weather model updates the initial weather forecast with real-time, high-resolution atmospheric measurements to generate a weather forecast more representative of the user's zone than that available from Internet / media outlets. Furthermore, because the weather model is run on the mobile device itself, staleness of the forecast will no longer be an issue, as forecasts can be generated on demand.
Owner:UNITED STATES OF AMERICA THE AS REPRESENTED BY THE SEC OF THE ARMY

Meteorological detection system based on meteorological unmanned aerial vehicle

The invention discloses a meteorological detection system based on a meteorological unmanned aerial vehicle, and belongs to the field of meteorological detection. The system comprises an unmanned aerial vehicle body, a ground support system, an airborne signal transmission system, an airborne power system, an airborne flight control system and an airborne atmosphere measurement system. The meteorological detection system has an excellent aerodynamic configuration, can be used for long-term meteorological monitoring in special civil areas and short-distance detection in dangerous environments such as tornado, and can also be used for investigation in the military meteorological field, thereby avoiding manned high-risk operation. The meteorological detection system passes through detection data such as wind field, temperature, humidity and air pressure measured at the place where a typhoon arrives, and plays an important role in understanding of the characteristics of a mesoscale structure inside the typhoon, business positioning and strength determination of the typhoon and improvement of the path and intensity forecasting ability. The meteorological detection system has the advantages of being flexible, economical and practical, having a large-area, long-time and continuous meteorological detection ability, and having unique effects and advantages in spacecraft launching and returning, important weapon tests and battlefield meteorological measurement applications.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Nanometer aerosol hygroscopicity measurement system and method

The embodiment of the invention relates to the technical field of the atmospheric measurement, and specifically relates to a nanometer aerosol hygroscopicity measurement system and method. The nanometer aerosol hygroscopicity measurement system comprises an aerosol selection unit, an aerosol humidification unit, a particle size distribution measurement unit and a computation unit which are connected in order; the aerosol selection unit is used for selecting to-be-measured aerosol particle with predetermined diameter; the aerosol humidification unit is used for humidifying the selected to-be-measured aerosol particle with predetermined diameter so as to reach the predetermined humidity; a buffering unit is used for temporarily storing the humidified to-be-measured aerosol particle; the particle size distribution measurement unit is used for measuring the to-be-measured aerosol particle passing through the buffering unit; and the computation unit is used for computing a moisture absorption growth factor corresponding to the humidity for any humidity. The buffering unit buffers the to-be-measured aerosol particle so as to better reach water vapor equilibrium, especially for the aerosol particle with small particle size, the subsequent measurement precision can be improved.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Satellite remote sensing image atmospheric correction spectral analysis method

The invention belongs to the technical field of satellite remote sensing, and particularly relates to a satellite remote sensing image atmospheric correction spectral analysis method. Atmospheric correction is performed according to spectral information of the image completely with no requirement for equivalent precision of the image topographic relief area and the flat area after DTM correction or synchronous atmospheric measurement data or ground object reflectivity measurement data, and the correction precision is obviously better than that of the image corrected by the present popular atmospheric correction software. The output atmospheric image and the ground object image are reflectivity images and can be synthesized into true color images and used for quantitative analysis. Landform information and BRDF information of the original image are completely reserved. Partitioned correction is performed on a huge image and the images are spliced into a complete image without lapping defect, and general atmospheric correction software can be developed. The satellite remote sensing image atmospheric correction spectral analysis method is the scientific achievement of the China's national natural science fund ("remote sensing image atmospheric correction spectral vector analysis model", the grant number: 41371394) project.
Owner:NORTHEAST NORMAL UNIVERSITY

A radiosonde and a method for atmospheric measurements performed at an elevated temperature

The invention relates to a method and a radiosonde. According to the method at least temperature and relative humidity of the atmosphere are measured by a radiosonde. In accordance with the invention the humidity measurement is performed continuously in an elevated temperature in order to make the measurement faster and both the elevated temperature and ambient air temperature are measured simultaneously and based on these values relative humidity is determined and the humidity sensing elements are positioned on a planar substrate.
Owner:VAISALA

Correction of troposphere induced errors in global positioning systems

A method of obtaining data for use by a receiver of a satellite positioning system or a GNSS comprises deriving the data remotely from the receiver by a server (200), using meteorological information and a regional or global three dimensional map of grid points from which it computes tropospherical delays by ray tracing through the refractivity field derived from atmospheric measurements of pressure, temperature and water data content, such measurements being available from meteorological bodies. When used to enhance position determined by a user receiver that includes a non-meteorological, climate based model (130) giving zenith delays and means (130′) to map them to particular inclinations, the server also includes a copy of such non-meteorological model (230) and provides its ray traced delay values as zenith delays. The sets of zenith delay values for corresponding grid points are compared in the server (260) and modifications developed (preferably in fractional form) by which the non-meteorological delay values require correcting to be accurate. The correction sets are reduced by image compression techniques (270) and transmitted via the satellites (1101 etc) of the GNSS at low data rate to the user receiver, which receiver simply applies the corrections to the Zenith delays derived by its own model. If a user position is known, the server may derive accurate tropospheric delay values directly for the receiver position directly for transmission.
Owner:THE SEC OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTYS GOVERNMENT OF THE UK OF GREAT BRITAIN & NORTHERN IRELAND

Sun and moon tracking device and method suitable for motion state

The invention discloses a sun and moon tracking device and method suitable for a motion state. The sun and moon tracking device comprises a two-dimensional rotary table, a tracking auxiliary device, a controller, an installation panel and a computer. The two-dimensional rotary table, the tracking auxiliary device and the controller are mounted on the installation panel; the two-dimensional rotary table is used for loading the detector and making the detector point to the sun or moon, the tracking auxiliary device is used for determining the azimuth angle and inclination angle of the initial mounting horizontal plane of the carrier, the controller is used for collecting image data of the tracking auxiliary device and transmitting the image data to the computer, and the computer is used for analyzing the image data and determining the inclination angle and azimuth angle of the horizontal plane; and then the two-dimensional rotary table is controlled to move through the controller so that the azimuth and pitching movement of the two-dimensional rotary table reaches a specified position, and the controller contains a GPS. The device has the advantages that the device can realize underway observation of the carrier, does not need to be installed at an accurate initial position, is simple and convenient, is easy to operate, and improves the atmospheric measurement level.
Owner:INST OF ATMOSPHERIC PHYSICS CHINESE ACADEMY SCI

Respiration Ranking in Controlled Atmosphere Rooms

An improved system and method for evaluating stored agricultural or horticultural commodities is provided. The system and method generally include performing atmospheric measurements within multiple controlled atmosphere rooms, or sampling enclosures coupled to controlled atmosphere rooms, and determining a change over time of a respiratory value of the commodities stored therein. Based on the change over time of the respiratory value, the system and method selects commodities from among at least one of the controlled atmosphere rooms for delivery, marketing, storage, or other disposition.
Owner:STORAGE CONTROL SYST INC

A radiosonde and a method for atmospheric measurements performed at an elevated temperature

The invention relates to a method and a radiosonde (1). According to the method at least temperature and relative humidity of the atmosphere are measured by a radiosonde (1). In accordance with the invention the humidity measurement is performed continuously in an elevated temperature in order to make the measurement faster and both the elevated temperature and ambient air temperature are measured simultaneously and based on these values relative humidity is determined and the humidity sensing elements are positioned on a planar substrate.
Owner:VAISALA

Method for verifying on-orbit absolute radiometric calibration result of optical load

ActiveCN112798013AImprove the accuracy of foundation verificationEliminate single-field single-observation errorsOptical apparatus testingRadianceEngineering
The invention discloses a method for verifying an optical load on-orbit absolute radiometric calibration result. The method comprises the following steps: selecting an underlying surface and a calibration field based on calibration field target characteristics and atmospheric measurement data; synchronously measuring target reflection characteristic parameters and atmospheric parameters of the calibration field on the ground, and processing the synchronously measured data on the ground; the method comprises the following steps: acquiring image data based on a satellite-borne optical sensor, processing the image data, and extracting a corresponding channel calibration coefficient of the sensor; calculating a radiance simulation value at the entrance pupil of the satellite-borne optical sensor of the calibration field by using an atmospheric radiation transmission model; calculating the relative difference between the equivalent radiance simulation value and the equivalent radiance observation value at the entrance pupil of the satellite-borne optical sensor of the calibration field; based on the error transfer theory, carrying out single-field verification uncertainty evaluation, and obtaining single-field verification uncertainty; and based on an international measurement basis comparison result analysis method, determining a weight coefficient of each field by taking single-field verification uncertainty as a component, and synthesizing a multi-test-field comprehensive foundation verification result and total uncertainty.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI +1

Dynamic parachute-opening control system

ActiveCN110764432AControl the timing of opening the parachute preciselyEasy to controlComputer controlSimulator controlControl systemSimulation
The invention provides a dynamic parachute-opening control system, and belongs to the technical field of spacecraft test control. Axial dynamic pressure and static pressure of a model are measured through an airspeed head arranged at a head of the model, the model axial dynamic pressure is output after processing through an atmosphere measurement computer, then the model axial dynamic pressure issent to a dynamic pressure data processor, and the dynamic pressure data processor is used for comparing the measured dynamic pressure value with a dynamic threshold, and real-time measured overload data can be combined. When judging that a comprehensive condition reaches a parachute-popup condition, a test parachute-popup instruction is sent to a general controller so as to pop up a test parachute, wherein the comprehensive condition, especially the dynamic threshold, is a simulation result obtained according to model flight trajectory simulation analysis. The control system provided by the invention can be applied to the precise control of various airdrop tests to verify the parachute opening performance of the parachute under the specific dynamic pressure condition, the reliable work ofthe test parachute can be effectively guaranteed, and the safe recycling of the test model is guaranteed.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH

Atmosphere measuring instrument for air quality detection

The invention discloses an atmosphere measuring instrument for air quality detection, which structurally comprises a detection blade box, a wind direction detector, a wind power detector, a display panel and a control box, the detection blade box is vertically fixed between the wind direction detector and the wind power detector through bolts, the wind power detector is arranged at the upper end of an outer shell of the display panel, the display panel is arranged at the top of the control box, and the control box is connected with the detection page box through a wire. Theatmosphere measuringinstrument has the beneficial effects that through cooperation of a locking buckle, an upper coupling sleeve shaft and a limiting sleeve shaft, a cleaning bottom frame is driven to rotate to synchronously clean the waterproof upper shell, dust deposition is avoided, meanwhile, due to the limiting effect of the locking buckle, the driving shaft can be linked in the center of the bearing, poor transmission caused by contact between a transmission part and dust is avoided, and meanwhile, the situation that the cleaning effect is poor due to synchronous rotation of the upper and lower fixed shafts is avoided.
Owner:邱雅茹

Atmospheric measurement system

An apparatus providing for simultaneous measurement of the wind upstream and downstream of a wind turbine uses either a single LIDAR beam split into two beams, each focused upstream or downstream of the windmill, or a multiple beam LIDAR with a first beam source aimed toward the upstream direction of the wind and a second beam source aimed at the downstream direction after the wind has passed through the wind turbine. The apparatus may also use LIDAR to measure wind direction and speed by making measurements along slightly different lines of sight, or by pointing the LIDAR in different directions. Two lines of sight allow measuring wind direction in the plane defined by the two lines of sight. Three non-coplanar lines of sight provide the information necessary to determine a full 3-dimensional wind velocity vector. Further, LIDAR may also be used to measure wind speed by estimating the wind velocity using inputs from both aerosol and molecular components.
Owner:MICHIGAN AEROSPACE

Sensor element and gas sensor

A sensor element used to detect, using a limiting current method, the specific gas concentration in a rich-atmosphere measurement-object gas. The sensor element includes a layered body in which a measurement-object gas distribution portion is provided, an adjustment pump cell that has an adjustment pump electrode arranged in an oxygen concentration adjustment space in the measurement-object gas distribution portion. The adjustment pump electrode contains Pt and Au, and a Au / Pt ratio (=the area of a portion where Au is exposed / the area of a portion where Pt is exposed) measured using X-ray photoelectron spectroscopy (XPS) is greater than or equal to 0.3 but not greater than 0.63.
Owner:NGK INSULATORS LTD

Temperature and emissivity separation method and device

The embodiment of the invention provides a temperature and emissivity separation method and device based on double networks. The method comprises the following steps: inputting a thermal infrared radiation spectrum and atmospheric measurement parameters of a target ground object into a first network model, and outputting atmospheric downlink radiation; inputting the spectrums of the atmospheric downlink radiation and the thermal infrared radiation into a second network model, and outputting the temperature and the emissivity of the target ground object, wherein the first network model is obtained by training according to an atmosphere lookup table,and the second network model is obtained by training according to the sample remote sensing data and the corresponding temperature and emissivity. According to the temperature and emissivity separation method and device provided by the embodiment of the invention, atmospheric downlink radiation is estimated through the first network model, temperature and emissivity separation is carried out through the second network model, and the temperature and emissivity separation precision can be improved.
Owner:AEROSPACE INFORMATION RES INST CAS +1

Atmospheric data measuring device and aircraft

The embodiment of the invention provides an atmospheric data measuring device, and the device comprises a pipe body for receiving atmosphere; a sensor which is used for measuring the atmosphere to obtain first atmosphere data; a control module which is electrically connected with the sensor, comprises a digital signal port, and is used for obtaining second atmospheric data according to the first atmospheric data and transmitting the second atmospheric data through the digital signal port; a body which is fixedly connected with the pipe body and used for fixing the control module; and an aviation plug which is used for fixing the atmospheric data measuring device on external equipment. According to the atmospheric measurement device provided by the embodiment of the invention, an air entraining function and an atmospheric data measurement function are integrated together to form an integrated product. Remote digital signal transmission is used for replacing existing air guide pipe drainage, measurement errors caused by airflow remote transmission are avoided, the measurement precision can be greatly improved, and the weight of the whole system can be greatly reduced by replacing anair guide pipe with a cable.
Owner:BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD

Method and device for separating temperature and emissivity

Embodiments of the present invention provide a method and device for separating temperature and emissivity based on dual networks. Wherein, the method includes: inputting the thermal infrared radiation spectrum and atmospheric measurement parameters of the target object into the first network model, and outputting the atmospheric downgoing radiation; inputting the atmospheric downgoing radiation and the thermal infrared radiation spectrum into the second network model, and outputting the target surface object The temperature and emissivity of ; wherein, the first network model is obtained by training according to the atmospheric lookup table; the second network model is obtained by training according to the sample remote sensing data and its corresponding temperature and emissivity. The temperature and emissivity separation method and device provided by the embodiments of the present invention estimate atmospheric downlink radiation through the first network model, and separate temperature and emissivity through the second network model, which can improve the accuracy of temperature and emissivity separation.
Owner:AEROSPACE INFORMATION RES INST CAS +1

Spectral Analysis Method for Atmospheric Correction of Satellite Remote Sensing Image

The invention belongs to the technical field of satellite remote sensing, and particularly relates to a satellite remote sensing image atmospheric correction spectral analysis method. Atmospheric correction is performed according to spectral information of the image completely with no requirement for equivalent precision of the image topographic relief area and the flat area after DTM correction or synchronous atmospheric measurement data or ground object reflectivity measurement data, and the correction precision is obviously better than that of the image corrected by the present popular atmospheric correction software. The output atmospheric image and the ground object image are reflectivity images and can be synthesized into true color images and used for quantitative analysis. Landform information and BRDF information of the original image are completely reserved. Partitioned correction is performed on a huge image and the images are spliced into a complete image without lapping defect, and general atmospheric correction software can be developed. The satellite remote sensing image atmospheric correction spectral analysis method is the scientific achievement of the China's national natural science fund ("remote sensing image atmospheric correction spectral vector analysis model", the grant number: 41371394) project.
Owner:NORTHEAST NORMAL UNIVERSITY

Adaptive interface device compatible with different pressure sensors

The invention belongs to the technical field of aircraft guidance and control, and particularly relates to an adaptive interface device compatible with different pressure sensors. The core point of the invention is to provide a sensor access judgment module design scheme based on a nonvolatile memory pre-stored sensor type. The key points of the invention are that a sensor is equipped with a printed circuit board, a signal processing circuit analog and digital conversion module and a sensor access judgment module in a matched way, an adaptive interface compatible with different pressure sensors is realized, and the problem that signal processing circuit hardware design and software design depends on a concrete pressure sensor type is solved. The requirements of installing (matching) different types of pressure sensors of an atmospheric measurement device under the premise of not changing software and hardware are satisfied.
Owner:BEIJING AUTOMATION CONTROL EQUIP INST

Carrier energy management section fads fault judgment and control method, carrier and storage medium

A carrier energy management section FADS failure judgment and control method, comprising the following steps: obtaining atmospheric data measurement data and inertial measurement data under wind interference; analyzing the characteristic difference between the atmospheric data measurement data and the inertial measurement data; Establish the mathematical representation of the safety boundary of the air data measurement data according to the distribution law of profile height, speed, heading, wind speed and wind direction; judge whether the atmospheric measurement information is in the safety boundary according to the coverage degree of the air data measurement data safety boundary to the atmospheric measurement data Range, when the atmospheric measurement information is not within the safe boundary range, it is judged that the air data sensing system is faulty; when the air data sensing system is faulty, the longitudinal control is performed according to the critical state boundary protection or the roll control is performed according to the sideslip angle boundary protection. In the case of FADS failure or no atmospheric data measurement information during the unpowered return process, the vehicle can still be safely and reliably controlled, ensuring the safe landing of the spacecraft.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH

An Adaptive Interface Device Compatible with Different Pressure Sensors

The invention belongs to the technical field of aircraft guidance and control, and particularly relates to an adaptive interface device compatible with different pressure sensors. The core point of the invention is to provide a sensor access judgment module design scheme based on a nonvolatile memory pre-stored sensor type. The key points of the invention are that a sensor is equipped with a printed circuit board, a signal processing circuit analog and digital conversion module and a sensor access judgment module in a matched way, an adaptive interface compatible with different pressure sensors is realized, and the problem that signal processing circuit hardware design and software design depends on a concrete pressure sensor type is solved. The requirements of installing (matching) different types of pressure sensors of an atmospheric measurement device under the premise of not changing software and hardware are satisfied.
Owner:BEIJING AUTOMATION CONTROL EQUIP INST

Device and method for making weather observations using infrared spectral radiometry

A method of weather observations by a constellation comprises at least a first cluster of three micro-satellites each orbiting around earth, and each micro-satellites comprises a spectrometer. Orbiting the three micro-satellites of the first duster around the earth in three separate orbits offset with respect to one another. Staggering the three micro-satellites with respect to one another as they orbit. Selecting the offset and the staggering, of each of the three micro-satellites with respect to one another, so that each one of the three micro-satellites have a substantially identical viewing area as each one of the three micro-satellites orbits around the earth. Sequentially collecting observations, from each of the three micro-satellites, as the micro-satellites orbit around the earth and observe substantially identical viewing areas, to separately gather atmospheric measurements and provide critical data for weather forecasting by infrared temperature and humidity soundings and motion vector winds of the earth.
Owner:BAE SYST INFORMATION & ELECTRONICS SYST INTERGRATION INC
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