31results about How to "Accurate imaging" patented technology

The invention discloses a tower climbing obstacle identification and positioning method based on machine vision. The method mainly comprises the following steps: S1, acquiring comprehensive environment and obstacle information and monitoring illumination conditions in real time; s2, developing an adaptive illumination compensation algorithm, and dynamically adjusting image processing parameters according to real-time illumination conditions; s3, performing semantic segmentation on the image, identifying different types of obstacles, and taking different countermeasures according to the characteristics of the obstacles; s4, constructing a high-precision real-time positioning system, accurately positioning the identified obstacle, and generating three-dimensional coordinate information of the obstacle; s5, tracking the position change of the obstacle in real time in the tower climbing process, and continuously updating the position information of the obstacle; and S6, designing an intelligent path optimization algorithm, planning a safe tower climbing path, and dynamically adjusting the tower climbing path in the tower climbing process. According to the method, misjudgment caused by insufficient illumination or overexposure is greatly reduced, and the safety of tower climbing operation is improved.

The invention discloses an electromagnetic induction imaging device and method based on atomic spin-exchange relaxation-free. A light beam emitted by the light source unit enters the light path adjusting unit after passing through the gas chamber coil unit, a to-be-imaged sample is placed in the gas chamber coil unit, the to-be-imaged sample generates a magnetic field under the action of the gas chamber coil unit, and the magnetic field acts on an atomic gas chamber in the gas chamber coil unit. The light beam sequentially passes through the atomic gas chamber and the light path adjusting unit and then enters the imaging unit, the imaging unit performs electromagnetic induction imaging on a sample and displays the sample, and the atomic gas chamber is filled with alkali metal atoms in a state without spin exchange relaxation. Based on the spin-exchange relaxation-free state of atoms, according to the electromagnetic induction phenomenon of an imaged sample, two-dimensional imaging of the sample is achieved, and magnetic field information obtained through electromagnetic induction of the sample can be extracted from light intensity information obtained after the sample penetrates through the atomic air chamber and combined imaging is achieved.

The present invention relates to a bridge crack detection device by unmanned aerial vehicle and an image processing method thereof. The device of the present invention comprises a frame, a camera fixing platform is arranged at the front end of the frame, a spherical camera is arranged on the camera fixing platform, a laser rangefinder is arranged below the upper lens of the spherical camera, a rotor part is symmetrically arranged on the outer side of the frame, the rotor part comprises an integrated rotor cover and legs symmetrically arranged at the lower part of the integrated rotor cover, the integrated rotor cover comprises a cantilever bracket connected to the frame, a support cover is uprightly arranged at the cantilever end of the cantilever bracket, a propeller motor is arranged in the support cover, a rotor is fixedly connected to the rotating end of the propeller motor, a protective cover is arranged on the top of the support cover, an upper baffle is suspended from the top of the support cover to the outer side of the support cover, the free end of the upper baffle is located below the support cover, the rotor is located on the inner side of the upper baffle, and a side baffle is arranged around the outer side of the free end of the upper baffle.

The invention discloses a mechanism and method for detecting the melting edge state of melting ingredients of a substrate glass kiln, and the mechanism comprises a guide assembly which is installed at the outer side of the kiln; the cooling assembly is mounted on the guide assembly, and a purging assembly is mounted on the cooling assembly; the detection device is arranged in the cooling assembly and is used for detecting the melting edge state of the ingredients in the kiln; the control device is electrically connected with the guide assembly, the cooling assembly, the purging assembly and the detection device; wherein when the melting edge state of the ingredients in the kiln is detected, the control device controls the guide assembly to drive the detection device to enter the kiln for detection. By monitoring the melting material melting edge state detection technology, marking the position of the melting material edge through image analysis software, and distinguishing the temperature according to different colors, the moving speed of the melting material edge and the temperature change condition can be visually observed.

The present application relates to a method, device and equipment for suppressing clutter in a single pulse forward-looking imaging of a polarization radar. The method comprises: generating multiple sets of weights as multiple polarization states synthesized in a digital domain according to the expression form of the Jones vector; calculating the single pulse angle measurement results of each range-Doppler unit under multiple polarization states to form a polarization-angle sequence; calculating the entropy of the polarization-angle sequence of each range-Doppler unit as the polarization angle entropy; constructing a mask filter for range-Doppler data according to the polarization angle entropy; inputting the range-Doppler-sum-difference channel echo data into the mask filter, performing single pulse angle measurement processing on the range-Doppler-sum-difference channel echo data after the mask filter acts, accumulating each angle measurement result and the sum channel energy to the corresponding range-azimuth unit, and obtaining a distance-angle diagram for clutter suppression. The present method can suppress sea clutter by utilizing the information provided by the polarization dimension.

This invention discloses a roughness testing device and method for plastic-coated steel pipes, belonging to the field of steel pipe testing technology. It includes an operating table, with an equipment box bolted to its upper surface. A wide-angle high-definition camera is mounted on the lower surface of the equipment box. A fixing plate and a connecting plate are bolted to the upper surface of the operating table. A motor is bolted to the outer wall of the fixing plate. During operation, the device transfers the workpiece to the operating table using a robotic arm. An electric telescopic rod then drives a clamping plate to hold the workpiece. The motor then rotates the connecting plate and the clamping plate, allowing the wide-angle high-definition camera to perform a comprehensive inspection of the workpiece. A cleaning roller cleans the workpiece, removing particulate impurities from its surface, thus improving the accuracy of the wide-angle high-definition camera's results.

The invention discloses a lumbar vertebra oblique photography positioning bracket for treating lumbar spondylolisthesis through oblique lateral intervertebral fusion, and relates to the technical field of positioning brackets. The lumbar vertebra oblique position photography positioning bracket for treating lumbar spondylolisthesis through oblique lateral intervertebral fusion comprises a mounting plate, and two symmetrically-arranged clamping plates are fixedly connected to the side wall of the mounting plate. According to the lumbar vertebra oblique photography positioning bracket for treating lumbar spondylolisthesis through the oblique lateral intervertebral fusion, the whole bracket and a sickbed can be conveniently mounted and dismounted, and the bracket is more convenient and faster to use and easy to carry; during use, the inclination angle of each supporting rod can be adjusted conveniently, use is more convenient and faster, meanwhile, whether a patient abuts against the supporting rods or not can be monitored, the patient can be reminded of adjustment, and therefore the photographing effect is guaranteed; and after use is completed, the supporting rods can be conveniently reset to the horizontal state, use is more convenient and faster, the whole bracket is convenient to carry, and use is more convenient and faster.

The utility model discloses an electronic sample viewing table for printed matters, which comprises a rack, a negative pressure placing table arranged on the rack, a background wall arranged on the rack and corresponding to the negative pressure placing table, a lifting plate arranged at the upper part of the background wall, a projector and a camera arranged at the bottom of the lifting plate and corresponding to the negative pressure placing table, and a display screen arranged on the background wall, a control center is installed on one side of the machine frame, a negative pressure cavity is installed on the bottom face of the negative pressure containing table, a plurality of sets of ventilation holes communicated with the negative pressure cavity are formed in the negative pressure containing table, a negative pressure fan is installed at the air outlet end of the negative pressure cavity, and the air outlet end of the negative pressure fan extends to the back of the machine frame. The negative pressure flattening device has the beneficial effects that the negative pressure cavity and the negative pressure fan are arranged to be matched with each other, so that an actual product on the negative pressure placing table can be subjected to air suction flattening, the product is prevented from being wrinkled, the image taking accuracy of a camera is ensured, and the product detection and comparison accuracy of a control center is improved.

The utility model relates to the technical field of alarm devices, and discloses an embedded security alarm device, comprising a housing, one side of which is provided with two mounting holes; the two gain antennas are fixedly arranged on the inner circular wall surfaces of the two mounting holes in a sleeving manner respectively; the buzzer is fixedly mounted on one side of the shell; the alarm lamp is fixedly mounted on the bottom surface of the shell; the circuit board is fixedly arranged on the inner wall surface of the shell; the fixing hole is formed in the bottom surface of the shell; the camera is fixedly installed on the bottom face of the circuit board, and the outer circle wall face of the camera and the inner circle wall face of the fixing hole are movably arranged in a sleeved mode; signals of the alarm assembly can be increased through the gain antenna, so that the camera can perform accurate imaging and alarm on the environment under the action of the buzzer, the alarm lamp and the infrared sensor, workers can be reminded through sound and light, and the alarm efficiency of the alarm assembly is improved.

The present invention discloses a line laser sensor for welding and an optimization method thereof, comprising: a power module, a laser generator, an imaging camera and a camera lens, a filter is detachably arranged at the end of the camera lens, and the filter is clamped and fixed by a clamping device; the filter is arranged in parallel with the camera lens; and the line laser sensor adopts a Sham structure line laser sensor. The present invention uses a Sham structure line laser sensor, takes the observation angle, imaging angle, object distance and imaging distance of the line laser sensor as optimization parameters, and optimizes the optimization parameters using a genetic algorithm, which can increase the depth of field of shooting and solve the problem that the camera receives projected laser stripes limited by the depth of field; at the same time, the length and width of the sensor are limited to reduce the volume of the sensor.

This invention provides an activatable semiconductor polymer, its preparation method, and its applications. The activatable semiconductor polymer of this invention can efficiently accumulate at tumor sites. Due to the presence of electron-withdrawing groups on its side chains, the polymer's fluorescence is quenched. Upon response to tumor markers—biothiols, reactive oxygen species, and cathepsin B—the polymer's fluorescence recovers, enabling precise imaging and sonodynamic therapy at the tumor site. Simultaneously, the activatable semiconductor polymer of this invention can label immune cells (such as dendritic cells and macrophages) and track their metastasis from the tumor to the draining lymph nodes.

The invention discloses an aza-hemicyanine dye and application thereof, and compared with a dye with similar functions, the novel aza-hemicyanine dye molecule provided by the invention can effectively prevent non-specific binding of serum albumin and the hemicyanine dye; the stability, the fluorescence quantum yield and the Stokes shift of the hemicyanine dye are enhanced; the dye provided by the invention is simple in synthesis step, convenient to purify and relatively high in yield; a six-membered heterocyclic ring is introduced into a side chain of the aza-hemicyanine dye, so that the binding with protein is effectively avoided, the false positive number interference of serum albumin on a dye fluorescence signal is eliminated, meanwhile, the kidney targeting is realized, and the high fidelity of imaging is improved; the probe NA-H2S2 synthesized on the basis of the dye NA-6, provided by the invention, is used for rapidly detecting the change of the concentration of H2S2; the dye molecule is simple and convenient in synthesis step, easy to purify and excellent in imaging performance, a fluorescence signal is not interfered by serum albumin, and the dye molecule is suitable for high-fidelity imaging of kidneys.

The application discloses a kind of dynamic platform forward-looking super-resolution imaging methods based on divide-and-conquer blind SAMP, comprising: the baseband echo signal is filtered in distance direction;According to filter signal, using acceleration phase compensation function and envelope deslope function calculates forward-looking scene scattering coefficient observation value;Construct overcomplete dictionary matrix;According to forward-looking scene scattering coefficient observation value and overcomplete dictionary matrix, using improved SAMP algorithm carries out forward-looking super-resolution imaging;The algorithm is based on divide-and-conquer method and carries out sparsity estimation, and reconstructs forward-looking scene signal based on sparsity;Wherein, two functions and overcomplete dictionary matrix are based on single-channel forward-looking scanning imaging geometry model of dynamic platform orientation and are constructed;The model introduces the three-dimensional acceleration of dynamic platform to accurately characterize the motion trajectory of dynamic platform.The application solves the problem of forward-looking super-resolution imaging blur under dynamic platform, effectively realizes the forward-looking super-resolution imaging of high-speed running dynamic platform.

The invention discloses a single-pixel imaging method and device based on a spatial light modulator and a light scattering effect, and belongs to the field of imaging detection, and the single-pixel imaging method comprises the following steps: modulating an ultraviolet laser beam to obtain a four-step phase shift sine speckle pattern; irradiating the four-step phase-shift sine speckle pattern on a target object and scattering the four-step phase-shift sine speckle pattern by a scattering medium in the air to obtain light intensity information; processing the light intensity information to obtain Fourier spectrum data; and reconstructing an image based on the Fourier spectrum data to obtain an image of the target object. According to the invention, the spatial light modulator and the scattering effect of light are utilized to realize single-pixel imaging in a non-reflecting-surface scene, so that the single-pixel imaging can be applied to an open non-line-of-sight scene.

The present application provides a target detection method and security scanner, wherein a processing device receives a second signal that is reflected by a first signal emitted by a linear array antenna in the direction of a transmission device, and the processing device also receives a captured image captured by a camera. The processing device processes the captured image to obtain the actual position coordinates of the linear array antenna, and then images the second signal sent by the linear array antenna according to the actual position coordinates to obtain an image corresponding to the linear array antenna, thereby reducing the error in imaging caused by micro-movement of the human body and making imaging more accurate. The inspection object is transported by a conveyor belt, which reduces the residence time of the inspection object, and two linear array antennas are used to scan the inspection object at the same time, thereby improving the detection probability of hidden targets and the inspection efficiency.

The invention provides a portable image acquisition device and method for contact angle measurement. Comprising a chassis, a chassis sliding rail and a sliding rail clamping seat, the top end of the chassis is connected with the chassis sliding rail; the top end of the chassis sliding rail is connected with a plurality of sliding rail clamping seats; the top of the sliding rail clamping base is used for fixing the image clamping mechanism, the fluid clamping mechanism and the light source mechanism. The image clamping mechanism is used for clamping an image acquisition device of liquid drops; the fluid clamping mechanism is used for clamping the injector to control the volume of the liquid drop to be detected and controlling the liquid drop to correspond to the liquid drop position of the second objective table; the light source mechanism is used for adjusting the intensity of the parallel light source in the measurement process. Compared with a traditional precise contact angle measuring instrument, through analysis and comparison, the device has the advantages that the working efficiency is greatly improved, the measured data result is accurate and free of deviation, the disassembly can be realized while the extremely high precision is ensured, the measurement is rapid, and the measuring device is convenient to carry, simple to operate and low in price.

The invention provides a novel fixing device for mouse brain imaging. The novel fixing device comprises a first fixing assembly, the bottom of the first fixing assembly is connected with an adjusting platform, the bottom of the adjusting platform is connected with a mounting bottom plate, a second fixing assembly is arranged on the mounting bottom plate, and one end of the second fixing assembly is close to the first fixing assembly; the first fixing assembly comprises an inverted-T-shaped plate, the inverted-T-shaped plate is installed at the top of the adjusting platform, two supporting cylinders are symmetrically arranged at the positions, close to the second fixing assembly, of the inverted-T-shaped plate, the top of each supporting cylinder is movably connected with a first connecting plate, a brain fixing piece is connected between the two first connecting plates, and the brain fixing piece is fixed to the head of a mouse. A positioning hole is formed in the brain fixing piece and used for positioning a window area for mouse brain imaging. According to the device, the stress reaction of the mouse in the experiment process is relieved, the reliability and repeatability of the experiment are improved, the absolute stability of the mouse in a waking state is ensured, and the accuracy of experiment data is effectively improved.

The application discloses a kind of high-frequency single-photon tilt wavefront detection method and device, comprising the following steps: using wavefront modulation technique, high-speed coding and modulation are carried out to incident light wavefront;Single-photon signal acquisition, using single-photon detector, the single-photon signal focused after being focused by light signal guiding focusing device is collected, and the received photon signal is converted into electrical signal and is output by detector;Single-photon signal processing, single-photon signal wavefront reconstruction, according to the extracted wavefront tilt information, wavefront is reconstructed using wavefront reconstruction algorithm;Data correction;Data result analysis.The application uses wavefront modulation technique to carry out high-speed coding and modulation to incident light wavefront, can improve the performance of light signal guiding focusing device, enhance system flexibility, wavefront modulation technique allows the amplitude, phase, polarization state and wave vector direction parameter of light wave to be independently or simultaneously regulated, which greatly enhances the flexibility and functionality of light signal guiding focusing device, and can optimize imaging quality.

The present invention provides a micro-area mechanoluminescence measurement system, comprising a mechanoluminescence module, a light source, a first electric reflector, a second electric reflector, a camera and a spectrometer, which can detect the mechanoluminescence performance of luminescent materials after being activated by an external light source. The fluorescence emitted by the luminescent material under pressure from the mechanoluminescence module first enters the camera for imaging of the luminescent area, and the actual mechanoluminescence area is calculated by an external program, and the pressure on the luminescent material is calculated together with the pressure measured by the pressure sensor; then, by switching the angle of the electric reflector, the fluorescence emitted by the luminescent material under pressure from the mechanoluminescence module is reflected by the electric reflector and enters the spectrometer to obtain spectral data, and the mechanoluminescence characteristics of the luminescent material under various pressures are obtained through analysis and processing. The micro-area mechanoluminescence measurement system can accurately image the mechanoluminescence area of ​​the luminescent material, and realize high-precision mechanoluminescence performance detection of the luminescent material.

The invention belongs to the technical field of oil and gas exploration and development, and particularly relates to a method for obtaining a salt cavern Q value model and a method for obtaining a Q value. According to the method for obtaining the salt cavern Q value model, a deep well logging point M is arranged in a rock cavern area; obtaining a second speed curve VM through logging information of the deep logging point M; according to the lithologic depth DpF of a sudden change point of the second speed curve VM; obtaining a Q-V value through logging information of the deep logging point M, and fitting the Q-V value to obtain a Q value model corresponding to the lithologic depth DpF; wherein M belongs to (1, 2, 3,..., m), and m represents the number of deep logging points; f belongs to (1, 2, 3,..., f), and f represents the layering number of lithology. According to the method, the Q value model is obtained through lithologic layering, and the obtained Q value model not only reduces the calculation amount, but also is more accurate; the Q value of the salt cavern can be obtained more accurately through the Q value model obtained through the method, imaging of the salt cavern is more accurate, a salt cavern reservoir is accurately described, and therefore the salt cavern is effectively utilized.

The invention belongs to the technical field of complex mountain area surface modeling and static correction in seismic exploration, particularly relates to a complex mountain viscoelastic wave field continuation static correction method based on small reflection data, and aims at solving the problem that the imaging quality of seismic data is low due to the fact that a static correction method based on the ray theory is large in error. The method comprises the following steps: acquiring seismic data in a small reflection mode; obtaining a scattered field at the detection point, and solving the parameter disturbance quantity in combination with the corresponding relationship between the parameter disturbance quantity and the scattered field; based on the parameter disturbance quantity, obtaining a quality factor Q of the underground medium and a frequency-dependent phase velocity v through the discretized frequency domain wave equation; updating Q and v until a set convergence condition is reached; and carrying out continuation static correction processing in combination with the updated Q and the updated v to obtain statically corrected seismic data. Static correction is carried out based on viscoelastic waves, and the imaging quality of seismic data is improved.

The invention relates to the field of CT technology, and discloses a dual-energy spectrum material decomposition calibration phantom and method, comprising a 16 cm long organic glass cylinder, and two Teflon cylinders with different diameters are inlaid on the organic glass cylinder, and the diameters of the two Teflon cylinders are respectively one-third and one-quarter of the diameter of the organic glass cylinder. The dual-energy spectrum material decomposition calibration phantom and method are calibrated on the projection, do not rely on the image reconstruction process, can make fuller use of the energy spectrum and the original projection data information, and obtain more accurate images and material decomposition results.

The present invention discloses a biological tissue low-temperature slice imaging device, comprising a defrosting mechanism, a main body mechanism, a slice mechanism and a fixing mechanism; the defrosting mechanism is located on the main body mechanism and defrosts the main body mechanism, the slice mechanism is located inside the main body mechanism and slices the biological tissue, and the fixing mechanism is also located inside the main body mechanism and fixes the biological tissue; the present invention can image the biological tissue in a low-temperature environment, a coating tube attaches a protective film to the bottom surface of a lens, so that the lens can be in a low-temperature environment, and frost forms on the outer surface of the protective film when frost forms. When imaging, the protective film and frost are shoveled to the inside of a collection box by a shovel plate, so that frost and water droplets are not generated on the lens, and the lens does not move, thereby ensuring the sealing performance of the device, preventing image deviation when the lens is imaging, and ensuring the stability and accuracy of imaging.

The utility model discloses an overall measurement light path joint upper rotating shaft type laser tracker turntable rotating shaft error detection device, which belongs to the laser tracking measurement field, and comprises a microscope, a fluorescent microsphere, a substrate and a six-dimensional precision calibration displacement platform, the microscope is arranged above the fluorescent microsphere, the fluorescent microsphere is fixed on the substrate, the six-dimensional precision calibration displacement platform is arranged on the substrate, and the microscope is arranged on the substrate. The substrate is fixed on the six-dimensional precise calibration displacement table in parallel, and the six-dimensional precise calibration displacement table is placed at the lower end of the microscope. According to the utility model, the error detection of the rotating shaft of the rotary table of the overall measurement light path connected with the upper rotating shaft type laser tracker realizes high-precision and omnibearing detection of the error of the rotating shaft of the rotary table of the overall measurement light path connected with the upper rotating shaft type laser tracker, and effectively improves the detection efficiency and accuracy through optimizing the measurement light path and a mechanical transmission structure; and reliable guarantee is provided for performance evaluation and quality control of the laser tracker turntable.

An image acquisition system configured to acquire an image of an object to be conveyed. The system includes a plurality of light sources configured to emit light rays with which the object is irradiated, a light source control unit configured to switch a light source that irradiates the object with the light among the plurality of light sources, and a line scan sensor configured to detect light from the object irradiated with the light. The line scan sensor has a pixel section in which a plurality of pixels are at least one-dimensionally arrayed and is configured to switch a gain value for amplifying a signal from each pixel. The line scan sensor switches the gain value in synchronization with the switching of the light source.

The invention provides portable ultrasonic equipment. The portable ultrasonic equipment comprises a main body structure and an adjustable common mode filter arranged in the main body structure, the adjustable common-mode filter comprises a variable common-mode inductor assembly and a magnetic field generation assembly. The magnetic field generation assembly is used for forming magnetic fields with different intensities under different driving currents; the variable common-mode inductor assembly is located within the coverage range of the magnetic field, the input end of the variable common-mode inductor assembly is electrically connected with an external power grid, and the output end is electrically connected with a power supply module in the main body structure; a variable-form magnetic material is arranged in the variable common-mode inductor assembly, and the variable common-mode inductor assembly is used for generating different inductance values under the action of magnetic fields with different intensities so as to filter interference signals in an external power grid and supply power to the portable ultrasonic equipment through the power supply module. According to the portable ultrasonic equipment, the common mode inductance value can be adjusted according to the interference frequency of any frequency band, the optimal filtering effect is achieved, and accurate imaging is achieved.

The invention relates to the fields of biomedical diagnosis, wearable sensing equipment, ultrasonic imaging and the like, in particular to an antibacterial, pressure-resistant and clear-imaging gel coupling patch as well as a preparation method and application of the antibacterial, pressure-resistant and clear-imaging gel coupling patch. The gel coupling patch prepared by the invention is composed of the functional mixed monomer, the cross-linking agent, the inorganic salt, the water-soluble antibacterial agent, the water-soluble redox system, the solvent water and the auxiliary agent, has acoustic impedance close to that of human skin so as to reduce the loss of sound waves, and is excellent in antibacterial property and mechanical property, excellent in electrical conductivity and imaging property, environment-friendly, free of smearing and low in cost. And the ultrasonic probe has an attaching function, can effectively increase the transmission efficiency of ultrasonic signals, realizes long-term monitoring of a human body, and can be coupled with wireless equipment to realize remote monitoring, so that the accuracy of diagnosis and treatment is improved. The gel coupling patch disclosed by the invention has wide application prospects in the fields of medical ultrasonic imaging, wound nursing, beauty and skin care, biosensing, food industry, environmental monitoring and animal medicine.

This invention relates to a reconfigurable underwater 3D laser scanning system and method, belonging to the field of underwater robot underwater environment 3D scanning technology. It solves the problems of non-reconfigurable underwater laser scanning systems, such as fixed structure, inability to change the scanning beam and form according to actual needs, leading to sparse point cloud data, insufficient information acquisition, slow scanning speed, and small detection range. The system includes an underwater camera module, a laser emitter module, a parallel circuit module, and a data processing center module unit. The laser emitter module is electrically connected to the parallel circuit module, and the underwater camera module, parallel circuit module, and data processing center module unit are electrically connected. This invention allows for the addition of underwater camera modules and laser emitter modules according to the needs of the underwater robot, expanding the scanning range and increasing the field of view. It has advantages such as simple structure, flexible scanning mode, dense point cloud data, and accurate imaging.

The invention relates to a polarized radar monopulse forward-looking imaging clutter suppression method, device and equipment. The method comprises the following steps: generating multiple groups of weights as multiple polarization states for digital domain synthesis according to an expression form of a Jones vector; calculating monopulse angle measurement results of each distance-Doppler unit in various polarization states to form a polarization-angle sequence; calculating the entropy of the polarization-angle sequence of each distance-Doppler unit as the polarization angle entropy; constructing a mask filter of distance-Doppler data according to the polarization angle entropy; and inputting the distance-Doppler-sum-difference channel echo data into a mask filter, performing monopulse angle measurement processing on the distance-Doppler-sum-difference channel echo data acted by the mask filter, and accumulating each angle measurement result and sum channel energy into a corresponding distance-azimuth unit to obtain a clutter suppression distance-angle diagram. By adopting the method, sea clutter suppression can be realized by using the information provided by the polarization dimension.

The application discloses a kind of azahemicyanine dyes and application thereof, compared with the dye similar to the function of novel azahemicyanine dye molecule provided by the application, the application can effectively prevent the non-specific combination of serum albumin and hemicyanine dye, and the stability, fluorescence quantum yield and stoke shift of the hemicyanine dye are enhanced;The dye synthesis step provided by the application is simple, easy to purify, and has high yield;By introducing six-membered heterocyclic ring into the side chain of azahemicyanine dye, the combination with protein is effectively avoided, the false positive interference of serum albumin on dye fluorescence signal is excluded, and kidney targeting is realized, and the high fidelity of imaging is improved;The probe NA-H2S2 synthesized based on the dye NA-6 provided by the application is used for rapid detection of the change of H2S2 concentration;The synthesis step of the dye molecule is simple, easy to purify, has excellent imaging performance, fluorescence signal is not interfered by serum albumin, and is suitable for high-fidelity imaging of kidney.