221results about How to "High spatio-temporal resolution" patented technology

The invention discloses a method for implementing online tests of stream flow based on video images, and belongs to the technical field of non-contact open channel flow measurement. The method relates to a water flow tracing system, a water surface illuminating system, a video flow acquisition system, a camera calibrating system, an image processing system and a flow estimating system, trace particles are thrown in a flow measuring stream segment by the water flow tracing system, a camera shoots a water surface video stream, frames are extracted at fixed intervals and are processed digitally, the image processing system processes digital images according to ground control point coordinate information provided by the camera calibrating system, and finally, the stream flow is computed by the aid of the flow estimating system according to a flow rate and area method. By the aid of the method, complicity of stream flow measurement is reduced, simultaneously, high measurement precision can be guaranteed, and the stream flow can be dynamically monitored in extreme environments.

The invention discloses an NRIET weather multisource detecting data fusion analysis system. The system comprises data collection, data quality control, data normalization treatment, background field grid interpolation, multisource data fusion, fusion analysis and three-dimensional weather information display analysis, wherein the data collection is that various weather data of ground and upper airroutine observation, satellite and radar remote sensing observation and pattern background field is acquired; the data quality control is that quality control treatment is carried out on the collected multiple observation data; the data normalization treatment is that the data normalization treatment is carried out on the data which undergos the quality control treatment, and universal standard data interfaces are provided for subsequent modules to be called; the background field grid interpolation is that module input is taken as a background field to be interpolated to three-dimensional lattice points, and three-dimensional background data is acquired; the multisource data fusion is that the observation data is used for fusion, and the three-dimensional background data is revised; the fusion analysis is that based on the data fusion, ground analysis, temperature analysis, cloud analysis, water vapor analysis and balance analysis are further utilized, and further revisal is carried out for diagnostic analysis; the three-dimensional weather information display analysis is that three-dimensional lattice point data undergoing the fusion analysis is displayed, and an interaction analysis function is provided.

The invention relates to an active phased array weather radar system based on a full-digital array. The system comprises a signal processing machine which is used for emitting a wave beam, receiving the wave beam and processing echo data; the signal processing machine is in bidirectional communication with a monitoring terminal and a product terminal through network; the signal processing machine is connected with a first high-speed large-capacity wavelength division multiplexing optical fiber communication machine through first optical fibers; the first high-speed large-capacity wavelength division multiplexing optical fiber communication machine is connected with a second high-speed large-capacity wavelength division multiplexing optical fiber communication machine through second optical fibers; a collector ring sleeves the second optical fibers; the second high-speed large-capacity wavelength division multiplexing optical fiber communication machine is in bidirectional communication with a correcting branch and a full-digital array module; the full-digital array module is connected with an antenna array through a correction network. According to the system, a distributive receiving-transmitting assembly is adopted to improve the working reliability of a radar; the electric scanning is performed for the wave beam, so that the flexibility and variation are ensured, a plurality of wave beams can be received at the same time, and the scanning is fast; the system can work in a plurality of working modes, and the temporal-spatial resolution is high.

The invention discloses a NRIET X-band radar cooperative networking analysis method. The method comprises the steps that data are collected; the data quality is controlled; a distance weight interpolation technology is used, and a three-dimensional cressman interpolation method is used to perform lattice interpolation on radar echo, radial wind and each polarization; three-dimensional data networking is carried out; for a three-dimensional wind field inversed by a dual Doppler radar, the inversed wind field is constrained by a mass continuous equation, and the three-dimensional wind field is acquired by repeatedly iteratively solving the equation; the vertical velocity w is acquired by the mass continuous equation, and a trace boundary condition is used to adjust a vertical motion field, wherein the upper boundary of the mass continuous equation is set to integrate down; based on a radar product reflectivity algorithm, a combined reflectivity puzzle product and an echo top puzzle product are generated; through Z-R relationship, quantitative precipitation is estimated to acquire a rain intensity product; a texture classification method is used to identify a precipitation stratus convection region; and a fuzzy logic algorithm is used to recognize the phase state of precipitation particles in each region at different stages of a precipitation process.

The invention provides a method for optimizing laser radar detection atmospheric composition spectral line analysis, through building of an IPDA laser radar equation of hard target reflection, calculation of difference optical thickness of two pulses and CO2 air column mixing rate XCO2 with a weight, single spectral line broadening calculation, absorption cross section calculation, CO2 absorption optical thickness calculation, a weight function profile and a CO2 molecule number density profile, weight function-optimized spectral lines are obtained. The spectral lines obtained by the method have a higher lower-atmosphere weight ratio, and detection is closer to a true value.

The invention discloses an array weather radar detection system and method. The array weather radar detection system comprises a plurality of radar transceiving units and a control and data processing center, and weather radars are arrayed according to a triangular structure. The detection method comprises the following steps that the weather radars are arrayed according to the triangular structure, synchronizing detection is conducted on the weather situation in the triangular area, data are synthesized, and a precipitation particle three-dimensional movement speed and a reflectivity factor field are formed. The array weather radar detection system is high in scanning speed, high in detection space resolution and small in data synthesis error, and the radar transceiving units are small in size, light and convenient to erect.

The invention discloses a method and system for generating an earth surface albedo product, which relate to the satellite remote sensing field. The method comprises the following steps of: according to classified POLDER BRDF data, obtaining POLDER albedo data and converting the POLDER albedo data to obtain wide waveband earth surface albedo data; according to sample MODIS earth surface albedo data and the wide waveband earth surface albedo data, building a first conversion model to obtain first earth surface albedo data; according to sample MODIS surface appearance albedo data and the wide waveband earth surface albedo data, building a second conversion model to obtain second earth surface albedo data; and integrating the first and second earth surface albedo data and the MODIS earth surface albedo data divided by grids to generate the earth surface albedo product with space-time continuum. According to the invention, the earth surface albedo product with long-time sequence, space-time continuum and high space-time resolution is generated and the inversion accuracy of the earth surface albedo product is improved.

The invention discloses a single-beam-laser multidimensional speed measuring system of a high-speed rarefied gas flow field. The single-beam-laser multidimensional speed measuring system comprises a high-speed rarefied gas wind tunnel (1), a laser light source module (2), a laser beam shaping module (3), a high-voltage arc discharge module (4), a fluorescent signal collecting and recording module (5), a data processing module (6) and a time sequence synchronous control module (7). The invention further provides an application method of the system.

The invention provides an electron gun device for generating a high-brightness femtosecond electronic impulse. The electron gun device comprises an incident window, a sealing component, a vacuum cavity, a photocathode, a grid, an anode, an observation window, a molecular pump, a pre-stage dry pump, an electronic focusing magnetic lens, an RF (Radio Frequency) electronic compression cavity, an RF signal generating device, an x-direction electronic deflector, a y-direction electronic deflector and an electronic scanning plate. Through the invention, the broadening function of the space charge effect on longitudinal pulse duration of an electronic beam impulse is effectively suppressed; the problem that the divergence of the electronic beam is increased due to electric field distortion at a small hole of the anode is solved; and the horizontal and longitudinal electronic impulses have super-high resolution factors, and the real-time detection on super-high time resolution and space resolution of ultrafast processes such as molecular reaction dynamics can be performed.

The invention provides a display system and a display method for the NPLS (nano-tracer planar laser scattering) three-dimensional structure of a supersonic flow field. The display system is used for displaying the supersonic flow field in a test cabin, and comprises a synchronous controller, a computer connected with the synchronous controller and used for controlling the synchronous controller to send out a control signal, and a nano-particle generator, wherein the nano-particle generator is used for scattering nano-particles in the test cabin; the display system further comprises a pulse laser connected to the synchronous controller, wherein the laser beam emitted by the pulse laser forms a curved-surface light source or a conic light source via a lens group, and illuminates the supersonic flow field carring the nano-particles in the test cabin; a plurality of CCD (charge coupled device) cameras connected to the synchronous controller are used for imaging the supersonic flow field simultaneously and thus obtaining a plurality of nano-particle images of the supersonic flow field under different viewing angles simultaneously, and transmitting the images to the computer; the computer is used for analysing the plurality of nano-particle images of the supersonic flow field under the different viewing angles, and measuring a curved-surface flow field structure or reconstructing the three-dimensional structure of the flow field.

The invention discloses a rainfall intensity measuring method based on a satellite-ground link attenuation effect. Attenuation characteristics generated when satellite communication signals pass through a rain area are used, and the average rainfall intensity of a satellite-ground link in a propagation path in the rain area is measured; the rainfall intensity measuring method comprises the following steps that firstly, a satellite signal receiving antenna is set up on the ground, the frequency and a polarization method of the satellite signals are determined, and the signal intensity is recorded by a satellite receiver; then rain-caused signal attenuation quantity is extracted according to changes of the signal intensity in rainy weather and non-rainy weather; and finally a relationship between rain-caused attenuation and the rainfall intensity are used for inversion to obtain the average rainfall intensity in the propagation path. The rainfall intensity measuring method based on the satellite-ground link attenuation effect has the characteristics that measuring points are many, the covered range is wide, the temporal-spatial resolution is high, the erection and maintenance costs are low and the like, areas with erected satellite antennae can be used for measuring the rainfall intensity, and the deficiencies that the temporal-spatial resolution of a meteorological satellite islow, scanning of a weather radar has a blind area, rain gauge stations are sparse and the like can be overcome.

The invention discloses a probe assembly suitable for a strong-shearing unsteady flow test of an aeroengine and provides the probe assembly (1). The probe assembly (1) comprises a conjunction box (2) and a probe rod portion (3) in the shape of an elongated rod, wherein the probe rod portion (3) is configured to be inserted into the conjunction box (2). The probe rod portion (3) comprises a first section (31), a second section (32) and a third section (33) whose diameters are successively decreased in a stepwise manner, wherein the third section (33) is provided with a sensing portion (34) disposed at the end portion of the probe rod portion (3), the sensing portion (34) is in the shape of an index finger and comprises a cylindrical surface (341) and an end portion curved surface (342), the cylindrical surface (341) and the end portion curved surface (342) are each provided with a measurement hole (343), and pressure sensors (4) are respectively arranged at positions, which are disposed at the inner-side wall of the hollow-tubular-shaped tube wall of the probe rod portion (3), at the two measurement holes (343). The probe assembly has high precision and high time-space resolution.

The invention relates to an unicell detector based on a nano fiber probe, which comprises a nano probe, a light source unit, a micro operation system, an electricity detection unit, a cellular localization system and a photon detection unit, an innermost layer of the nano probe is a fiber layer, the outer wall of the fiber layer is wrapped with a nano ring electrode layer, and the outer wall of the nano ring electrode layer is wrapped with an insulating layer. A manufacturing method of the unicell detector based on the nano fiber probe comprises the steps of drawing, sputtering, making the insulating layer and cutting focused ion beam. The unicell detector has high sensitivity and can realize the unicell grade detection, compared with a traditional detection means by crushing millions of cells, the required cell sample amount is greatly reduced, and the success rate of disease detection at early stage can be increased. The unicell detector can perform in-vivo cell detection and can avoid the false appearance generation during a cell processing process. The space-time resolution and detectable target object scope can be greatly enhanced, and a biochemistry mechanism in the unicell enables real-time detection and analysis.

The invention relates to a high-precision sea surface height extracting method of a radar altimeter through small incidence angle interference. A small incidence angle and short base line interference processing mode is adopted to carry out synchronous interference receiving on echo signals through a main channel and an auxiliary channel, pre-filtering, two-dimensional image processing, image registration, interference processing, multi-vision processing, phase-position denoising filtering, phase position unwinding, water recognizing, classifying, height conversion and geometric correcting processing are carried out on received data in sequence, and a water area height value is obtained. According to the method, the swath width is large, the temporal-spatial resolution is high, the method can be applied to observation of the ocean current, ocean tide, vortex and other meso and micro scale phenomena in the ocean and the observation of the coastal water, the sea ice shelf and the land hydrology.

The invention relates to a method for ultra-short-term prediction of solar irradiance in clear and cloudy weather, which is based on an all-sky imager (TSI-880) ground cloud picture, including cloud retrieval of real-time ground-based cloud images, using the cloud image retrieved from the time-series cloud cover to predict the cloud image; Then, the multiple linear regression equation is constructed by using the cloud amount and clear sky factor data of n time cloud pictures before t time. Finally, the cloud amount data of t + Delta t time cloud pictures in the future are substituted into theregression model to obtain the forecast clear sky factor, and then the forecast surface irradiance of the corresponding future time is calculated. The invention can effectively predict the variation of the ground solar irradiance caused by the movement and change of the clouds in the clear and cloudy weather condition in real time, overcomes the shortcomings of the existing solar radiation prediction method such as randomness, uncertainty, large error and the like in the clear and cloudy weather condition, and realizes the advantages of good real-time performance and high accuracy.

The invention discloses a surface water body product generation method and system based on a Google Earth Engine cloud platform. According to the invention, the method comprises the steps: acquiring afull-time-sequence Landsat8 satellite remote sensing image by using a Google Earth Engine remote sensing big data cloud platform; manually selecting high-precision training samples to form differenttypes of water body and non-water body typical sample libraries; constructing a characteristic wave band by adopting a plurality of indexes such as a normalized vegetation index, a normalized water body index and a topographic slope and an image original wave band; in combination with high-precision training samples and characteristic wave bands, realizing the full-time-sequence surface water bodyintelligent extraction by adopting a random forest classifier, constructing a surface water body occurrence frequency model, and realizing automatic generation of surface water body products. According to the invention, the water body product generated by the method has higher spatial-temporal resolution, can reflect the seasonal dynamic change rule of the surface water body, and can be applied to automatic production of national or global scale long-time sequence surface water body products.

The invention discloses an on-line measuring system and method for the concentration of NO3 free radicals in the atmosphere based on broadband cavity-enhanced absorption spectroscopy. The on-line measuring system at least comprises a light source controller, a light source, a first convex lens, a second convex lens, a pair of high-reflectivity lenses, a detection cavity, an optical fiber, a spectrometer and a zero-point generator. According to the invention, the pair of high-reflectivity lenses compose a resonant cavity, a LED is used as the light source, and the spectrometer is used as a detector; dynamic zero points are employed for elimination of the influence of other absorbed components on the measurement of NO3 free radicals, so on-line accurate measurement of the NO3 free radicals in the atmosphere is realized. The on-line measuring system and method provided by the invention have the characteristics of low detection limit, high sensitivity, high temporal-spatial resolution, high stability and low cost.

The invention discloses an online measurement device and measurement method for the NO concentration in a high-NO2 and low-NO atmosphere. The online measurement device comprises an ozone generation unit, a connection pipe cleaning unit and a sampling pipe, wherein a connection reaction bin, an NO2 measuring instrument, a second mass flow meter and a first air pump are sequentially connected behind the sampling pipe; and the connection pipe cleaning unit comprises an electromagnetic three-way valve, an activated carbon tube, a current-limiting hole and a second air pump. By adopting a cavity-enhanced absorption spectroscopy, a sampling mode (actual atmosphere of ozone is added) or a zero point mode (actual atmosphere) is set through the electromagnetic three-way valve; absorption spectrum intensity signals of two modes are measured through an NO2 measuring instrument as a sampling spectrum and a reference spectrum respectively, and then NO in the atmosphere is converted into a concentration value of the NO2 through spectral fitting, that is to say, measurement of the NO concentration in the atmosphere environment is achieved, so that the online measurement device and measurement method have the characteristics of being free of NO2 concentration interference, a low detection limit, high sensitivity, high temporal-spatial resolution, high stability and low cost.

The invention relates to a panorama image acquisition system, and an apparatus and method for measuring a skyline based on the same. Quantitative shooting measurement is carried out on a skyline in an urban geographical landscape field in an innovative mode; and the invention aims at measuring a 360-degree urban skyline contour of surrounding urban space building entities at the human vision level in a fixed-point, positioning, and quantitative mode by using an observer as a center. The panorama image acquisition system includes a panorama image collection unit, a moving support, and a storage and / or data sending unit. The panorama image collection unit is used for collecting a 360-degree panorama static or dynamic image; the moving support is used for supporting the panorama image collection unit; and the storage and / or data sending unit is used for storing the image collected by the panorama image collection unit or sending the image collected by the panorama image collection unit to a matched receiving unit. The provided method and apparatus have characteristics of convenient base station erection, low cost, high precision, fast speed, convenient data acquisition, and high reliability and the like.

The invention discloses an aerosol three-dimensional space distribution drawing method. The method comprises the following steps of firstly, observing and inverting an aerosol extinction coefficient vertical profile based on a satellite laser radar, calculating a monthly average aerosol three-dimensional space distribution map of the long-time sequence to obtain an observation-based climatic monthly aerosol extinction coefficient three-dimensional space distribution map and a mode-based climatic monthly aerosol extinction coefficient three-dimensional space distribution map, and calculating toobtain an observation-based and mode-based ratio three-dimensional space distribution map, obtaining an aerosol three-dimensional space distribution situation map hour by hour after observation constraint, and fusing the aerosol three-dimensional space distribution situation map with data observed by a ground-based Mie scattering laser radar and a satellite-borne laser radar, acquiring an hourlyaerosol optical thickness space distribution present map, and finally, acquiring an aerosol three-dimensional space distribution present map cooperating with satellite and ground active and passive remote sensing observation and mode results. Through satellite-ground active and passive remote sensing observation and cooperative fusion of mode results, more reliable aerosol three-dimensional spacedistribution information is provided.

The invention discloses a single-cell / single-molecule imaging light / electricity comprehensive tester based on a multifunctional probe. The tester comprises the multifunctional nano-probe, a sample pool, an atomic force microscope system, a light source unit, an electricity testing unit, a cell sample locating system and a photon testing unit. The light source unit, the electricity testing unit, the cell sample locating system and the photon testing unit are respectively connected with a data collection and analyzing unit. The multifunctional nano-probe comprises an optical fiber layer, a nano electrode layer and an insulation layer. The nano electrode layer and the insulation layer are wrapped on the outer wall of the optical fiber layer in sequence. The synchronization comprehensive tester comprises a manufacturing method of the nano-probe which can carry out atomic force scanning imaging on single-cells / single-molecules and carry out light / electricity testing at the same time, a manufacturing method of the sample pool and relevant optics, electricity and mechanics testing and analyzing instruments. Temporal-spatial resolution and the range of target objects which can be tested are greatly improved, the tester can be widely used in biology and medicine and be used for fundamental research and disease testing under the level of sub-cells and molecules, and the tester has great development significance on tumor early diagnosis, medicine development and agricultural science.

The invention provides a marine ranch underwater and overwater integrated communication system based on small floater anchor mooring chain networking according to the requirement of marine ranch intelligent monitoring three-dimensional network construction. A sensor network based on LoRaWAN wireless standard is built in a marine ranch. Seawater temperature information transmission of an underwaternode profile of the small float anchor mooring chain is completed underwater based on an inductive coupling transmission principle, the signal transmission performance is improved by using an OFDM algorithm, the small float anchor mooring chain is used as a network child node on water, a gateway node is arranged at a proper position, a server terminal is installed on a watch-over platform on water, and each child node, the gateway and the server form a wireless sensor network, a LoRa rate adaptive mechanism is used for guaranteeing the transmission rate of signals in the aspect of a protocol.The marine ranch underwater and overwater integrated communication system based on small floater anchor mooring chain networking provides a low-cost solution for monitoring and transmitting underwater data of the marine ranch.

The invention provides a method for reconstructing a vertical rainfall field based on satellite-ground link scanning, and the method comprises the steps: building a plurality of satellite signal receiving ends to receive polar orbit satellite signals, and forming a plurality of satellite-ground links; meshing a vertical region to be reconstructed; obtaining the spatial distribution of attenuationcoefficients by analyzing the relation among satellite-ground link signal strength information, rainfall attenuation coefficients and satellite-ground link lengths, performing the inversion of the spatial distribution of rainfall according to a relation model of the attenuation coefficients and the rainfall strength, and generating rainfall information in a vertical space; and finally, reconstructing the vertical rainfall field by combining with a detection area. The method not only makes up the defects of the traditional means for detecting the vertical rainfall field, but also has the advantages of high temporal-spatial resolution, low cost and the like, and provides important data support and guarantee for water resource management, agricultural development, natural disaster early warning and the like.

The invention belongs to the technical field of weather forecast, and particularly relates to an air temperature forecast data correction method based on deep learning. In a data preprocessing stage, a nearest neighbor interpolation method is used for converting air temperature forecast data into lattice point data, meanwhile, the spatial resolution is improved, and Gaussian filtering is adopted for carrying out smoothing processing on the air temperature data, so that Gaussian noise is removed; in the stage of constructing a deep learning network structure, the time resolution is improved by using up-sampling processing, meanwhile, time features are extracted by using LSTM, weighted fusion is performed on the time features and numerical forecasting features extracted by a UNet network, and the temperature forecasting precision is improved by using the nonlinear mapping capability of the deep learning network and the information extraction capability of lattice point data. In conclusion, according to the air temperature forecast data correction model, a more accurate correction value can be calculated, the temporal-spatial resolution of air temperature forecast can be improved, manpower consumption can be reduced, and a high-resolution and accurate-analysis correction service is provided for future refined grid point forecast.

The invention discloses a typhoon elliptical wind field parametric simulation method based on remote sensing image features. The invention relates to the field of satellite meteorological remote sensing information technology application. Through a remote sensing image analysis means and in combination with least square method ellipse fitting, ellipse center coordinates, ellipse long axis and short axis lengths and included angle parameters of the ellipse long axis and the x axis in the positive direction of the sea surface ellipse typhoon wind field are obtained through simulation, and the maximum wind speed space distribution range of the sea surface wind field in different directions is given. The method has the characteristics of simple operation and good real-time performance, the space-time heterogeneity distribution characteristic of the maximum wind speed radius of the sea surface wind field can be simulated, the obtained maximum wind speed point fitting ellipse can effectivelydescribe the space-time distribution range and orientation of sea surface wind field energy, and more accurate external drive can be provided for simulation of ocean dynamic processes such as storm surge and sea waves.

The device comprises: a laser, a first / second spectroscope, a polarization beam-splitter piece, a 1 / 4 wave plate, a telescope, a full-reflection mirror on reflection beam of the first spectroscope, a switch, and an optical Doppler imaging detector on the output light direction of second spectroscope. Wherein, arranging the first spectroscope and beam-splitter piece both as 45Deg, 1 / 4 wave plate and telescope on the OA of output beam of the laser in turn; arranging with 45Deg the second spectroscope on the cross point of switch light path and reflection light path of laser echo of beam-slitter piece. This invention can determine the position, height, velocity and direction.

The invention discloses a method for inverting boundary layer height based on coherent anemometric laser radar carrier-to-noise ratio. The basal principle is as follows: a coherent anemometric laser radar is used for acquiring a carrier-to-noise ratio vertical profile; after performing signal normalization, the signal is processed by utilizing wavelet covariance conversion; and the height corresponding to a maximum value after the wavelet conversion is used as the height of the top of the atmospheric boundary layer. Compared with the existing algorithm, the statics atmospheric boundary layer height with high time resolution can be acquired by using the coherent anemometric laser radar; the dynamics atmospheric boundary layer height acquired through wind field inversion is in favor of further improving the precision of a climate model, a weather forecast model, and the atmosphere pollution diffusion model.

The invention discloses a CORS-based regional ionospheric electron density three-dimensional real-time monitoring system and method. The real-time monitoring system comprises a CORS data real-time acquisition module, a Real-Time Service (RTS) real-time acquisition module, a real-time precise ephemeris generation module, a real-time data management module, an ionospheric data processing module, a display module and a product service module. The CORS-based regional ionospheric electron density three-dimensional real-time monitoring system and method has the significant effects that real-time three-dimensional ionospheric electron density products based on global satellite navigation systems such as GPS, GLONASS or Beidou system can be stably provided in real time through a GNSS reference station network and the ionospheric data processing module, and real-time monitoring of a regional ionosphere is realized; and the realization cost is low, ionospheric products with real-time and high spatial-temporal resolution are provided without increasing the construction cost, and the CORS-based regional ionospheric electron density three-dimensional real-time monitoring system and method is apowerful supplement to traditional ionospheric monitoring methods.

The invention discloses a wind field inversion method and system based on an eight-beam wind profile laser radar, a seed source laser generates linearly polarized light, the linearly polarized light is divided into a transmitting signal and a local oscillator signal after passing through a beam splitter, the transmitting signal generates frequency shift through an acousto-optic modulator and is modulated into pulsed light, and the pulsed light is transmitted to the local oscillator signal. The pulsed light is subjected to power amplification treatment by the amplifier, passes through the circulator and is emitted by the telescope; a wind profile laser radar echo signal is received by a telescope, the wind profile laser radar echo signal and a local oscillator signal are jointly input into a coupler, an output result of the coupler is converted into an intermediate-frequency electric signal through a balance detector, the intermediate-frequency electric signal is sampled by an acquisition card, power spectrum estimation is carried out on the sampled echo signal, and through pulse accumulation averaging, the wind profile laser radar echo signal is obtained. Doppler frequency shift is extracted, and inversion of wind speed information of the wind field is achieved. Real-time atmospheric wind field three-dimensional detection with high temporal-spatial resolution, low detection blind area, long distance and high wind measurement precision can be realized.

The invention relates to a device and method for diagnosing the dynamic response of a metal material. A nanosecond laser beam emitted by a nanosecond laser source in the diagnosis device irradiates the upper surface of a to-be-detected metal sample; a picosecond laser beam emitted by a picosecond laser beam source irradiates a metal microwire backlight target to generate an X-ray source, and the X-ray source is used for carrying out X-ray diffraction imaging on the dynamic response process of the to-be-detected metal sample. A DXRD diagnosis package comprises a shielding module and an IP imaging plate, the IP imaging plate is used for recording imaging data after X-ray diffraction imaging, and the shielding module is used for shielding the influence of stray light in a backlight source ondiffraction imaging of the to-be-detected metal sample; and imaging data recorded by the IP imaging plate are used for analyzing related characteristics of the to-be-detected metal sample. According to the invention, the space-time resolution can be improved, and the diagnosis of the material dynamic response of the high-Z metal is realized.