29 results about "Polarized spectroscopy" patented technology

The invention discloses a road intelligent diagnosis method based on an AI large model, and relates to the technical field of road engineering detection, and the method comprises the following steps: building a unified time base line, constructing a phase reference field, injecting a calibration pulse, separating dynamic shadow time sequence texture and crack initial features in a road image sequence, and obtaining a road image sequence; generating prior information of dynamic shadows and cracks; under the constraint of prior information, polarization spectrum three-dimensional coding imaging is carried out, polarization angle distribution and spectrum gradient are extracted, a feature dictionary of dynamic shadows and cracks is constructed, and phase drift in the prior information is calibrated. According to the method, a unified time base line and a phase reference field are constructed, and accurate distinguishing of dynamic shadows and cracks is realized by combining polarization spectrum imaging and anti-fact distillation; the point cloud and acceleration data are fused for geometric reconstruction, and through phase conjugate extinguishing and closed-loop feedback, the continuity and accuracy of diagnosis are significantly improved, and maintenance error decisions caused by misjudgment are avoided.

The application discloses a kind of full polarization spectral imaging device and detection method, contain sequentially arranged polarization modulator, imaging spectrometer, data acquisition processing display system to incident light;Polarization modulator is single fixed retarder and single fixed linear polarizer sequentially arranged along incident light, can carry out spectral modulation to full stokes parameter, it has the superiority of simple, ultra-compact, miniaturization, anti-system error in structure.By constructing complete imaging physical model or constructing imaging physical model based on compressed sensing, then using untrained artificial neural network realizes the full stokes parameter image reconstruction under each narrow waveband, and the deep neural network of "black box operation" is endowed with physical meaning.The reconstructed polarization spectral resolution can be consistent with the resolution of the imaging spectrometer used;And it has the characteristics of strong anti-noise ability, so as to ensure high-quality reconstruction.

The invention discloses a wine quality AI visual detection method, and relates to the technical field of wine quality detection. The method comprises the following steps: pretreating a wine sample; polarization spectrum images in different wave bands and different polarization directions are collected through a multispectral polarization imaging system and preprocessed; segmenting a microorganism region based on a polarization degree threshold, and extracting polarization spectrum feature vectors of microorganisms; extracting morphological feature vectors of the microorganisms; fusing the two feature vectors to construct a feature fusion matrix, and inputting the feature fusion matrix into an improved attention mechanism convolutional neural network model for training to obtain a wine quality AI detection model; after a sample to be detected is processed, the model is input to obtain a quality index predicted value, and quality grade judgment is achieved. According to the invention, the multispectral polarization imaging technology and microbial morphological characteristic analysis are combined, the anti-interference capability is strong, the detection precision and efficiency are high, the rapid, lossless and accurate detection of the wine quality is realized, and the practical value is high.

This application relates to the field of optical polarization measurement technology, specifically to a wide-spectrum, high-bandwidth static spectral modulation Stokes polarization measurement device, comprising a polarization modulation module, a spectral sampling module, and a high extinction ratio polarizer. The polarization modulation module includes a phase retarder and a linear polarizer; the spectral sampling module has sub-nanometer spectral resolution; the high extinction ratio polarizer includes a halogen tungsten lamp and a Glan Taylor prism for generating high-purity linearly polarized light; the obtained demodulation factor and the modulation spectrum acquired by the spectral sampling module are used to invert the Stokes parameters using zero-heterodyne coherent demodulation technology. This application employs a phase retarder with high birefringence, which, for the same thickness, produces an optical path difference tens of times greater than that of quartz, increasing the Stokes polarization measurement bandwidth by a factor of the response and improving the measurement accuracy of polarization spectral parameters. Simultaneously, the zero-heterodyne coherent demodulation method is used to eliminate the dispersion interference of the phase retarder through calibration.

The invention discloses a circular polarization spectrometer and a spectrum analysis method thereof, and relates to the technical field of circular polarization spectrum analysis. A chiral structure layer of a circularly polarized photoelectric detector of the circular polarization spectrometer comprises a left-handed chiral structure array and a right-handed chiral structure array which are independent from each other and are in mirror symmetry, and a photosensitive layer comprises a first photosensitive unit and a second photosensitive unit. The first photosensitive unit is electrically connected with the first signal detection module through the first electrode group, the second photosensitive unit is electrically connected with the second signal detection module through the second electrode group, and the circularly polarized photoelectric detector is used for collecting a left-handed response current signal and a right-handed response current signal under monochromatic light with the same wavelength; and the circular polarization spectrometer calculates the left-hand circularly polarized light intensity and the right-hand circularly polarized light intensity according to a formula. The circular polarization spectrometer can synchronously and quantitatively separate left-handed and right-handed circularly polarized light on a monochromatic wavelength point, and the device stability and the process compatibility are high.

The invention relates to a polarization spectrum device, in particular to an integrated polarization spectrum device for noninvasive blood glucose measurement and a blood glucose measurement method, and solves the technical problem of low blood glucose measurement precision caused by the problems of low optical parameter dimension, complex algorithm processing, overfitting and the like of the existing noninvasive blood glucose measurement device. According to the integrated polarization spectrum device for noninvasive blood glucose measurement, polarization signals and multispectral signals are obtained through the polarization path and the spectrum path respectively, compared with a traditional blood glucose measurement method, the optical information dimension of the integrated polarization spectrum device is effectively improved, efficient complementation of spectrum information and polarization information can be achieved, and therefore the blood glucose measurement precision is improved. The invention further provides a blood glucose measurement method, the LSTM neural network is adopted for blood glucose prediction, the problem of overfitting of high-dimensional polarization spectrum information by a traditional BP neural network can be avoided, and the blood glucose prediction precision is improved.

The application discloses a circularly polarized spectrometer and a spectral analysis method thereof, and relates to the technical field of circularly polarized spectrum analysis. The chiral structure layer of the circularly polarized photodetector of the circularly polarized spectrometer comprises a left-handed chiral structure array and a right-handed chiral structure array which are independent and mirror-symmetric; the photosensitive layer comprises a first photosensitive unit and a second photosensitive unit; the first photosensitive unit is electrically connected with a first signal detection module through a first electrode group; the second photosensitive unit is electrically connected with a second signal detection module through a second electrode group; the circularly polarized photodetector is used for collecting left-handed response current and right-handed response current signals under monochromatic light of the same wavelength; and the circularly polarized spectrometer is used for calculating left-handed circularly polarized light intensity and right-handed circularly polarized light intensity according to a formula. The circularly polarized spectrometer can synchronously and quantitatively separate left-handed and right-handed circularly polarized light intensity at a monochromatic wavelength point, and has high device stability and process compatibility.

The present application relates to the technical field of color detection, in particular to a kind of antique flax stick active dyeing color difference calculation optimization method and system.The present application includes real-time monitoring fabric motion state, calculating motion speed and displacement, determining the timing and position compensation parameters of spectrum acquisition;Through polarized light source, the surface of the fabric to be measured is illuminated at the acquisition position, and polarized spectral data is collected in the normal direction of the fabric surface to obtain reflectance spectral information;Ultraviolet light source is used to excite the surface of the fabric to be measured, and fluorescence spectral data is collected to identify different fiber regions;The fiber density distribution in the fiber region is calculated, and a layered weight system is constructed;Based on the reflectance spectral information, the color difference of the fiber region is calculated, the color difference characteristics are extracted, and the antique quantification result is measured;According to the antique quantification result, set the color difference threshold standard, and adjust the color difference threshold according to the evolution trend;Based on the layered weight system and the color difference threshold, the color difference value of the fiber region is weighted calculated, and the comprehensive color difference evaluation result is obtained.

This invention discloses an experimental method for measuring the electron-hole recombination emission rate. The apparatus for this method includes a laser chip (with an anti-reflection coating on only one end of its horizontal two-sided end face), a plano-convex lens, a polarizer, a fiber optic coupler, an optical fiber, and a spectrometer. The plano-convex lens, polarizer, plano-convex lens, and fiber optic coupler are placed sequentially on the same horizontal line on both sides of the chip. The fiber optic coupler is connected to the spectrometer via an optical fiber. First, energy is applied to the laser chip, causing it to emit light from both sides. The spectra from both sides are focused onto the fiber optic coupler by the plano-convex lens and then transmitted to the spectrometer via the optical fiber. By rotating the polarizer, different polarization spectra can be selected to obtain specific spectral images under transverse electric / magnetic field modes. Finally, by substituting the spectral data from both ends into the established formula, the electron-hole recombination rate of the laser chip can be calculated.

The application discloses a kind of underwater target spectral reflectivity reconstruction methods based on difference calculation, solve the technical problem that present underwater object spectral reflectivity acquisition method exists measurement inaccuracy or only applicable to close-up shooting, cannot be used for the calculation of long-distance object spectral reflectivity;The method of the application, without additional ranging equipment, only using a polarized spectral imager is moved to obtain two groups of images similar to binocular imaging, the distance, angle information of light source, imager and target point are calculated by binocular measurement algorithm and stereoscopic geometry model, combined with the water attenuation coefficient measured in situ by attenuator and Lambert-Beer law, the original incident and emission radiance value of target object can be calculated, so that the real spectral reflectivity of target is reconstructed.

The invention discloses a polarization spectrum information acquisition method based on an acousto-optic tunable filter, and belongs to the technical field of optical polarization and spectral imaging. According to the method, a detection light path comprising a diaphragm, a phase delayer, a front lens group, an acousto-optic tunable filter, a rear lens group, a reflector, a polarization analyzer, an imaging lens group and a detector is constructed, incident light is subjected to polarization beam splitting by using the polarization sensitive characteristic of the acousto-optic tunable filter, and the diffraction spectrum is detected under the condition that the diffraction spectrum is not influenced. Transmission light is led out through a reflecting mirror, and spectrum and polarization information is obtained through the transmission o light and the transmission e light; acquiring light intensity information of a target in different spectrum channels by combining the light intensity difference of transmitted light of the acousto-optic tunable filter in the power-off state and the power-on state; a polarization information resolving model is established based on a polarization transformation matrix theory, flexible resolving of target polarization information is realized through combined modulation of a phase delayer and a polarization analyzer, and the method is suitable for detection in various scenes.

The invention provides a common-aperture visible light and near-infrared polarization spectrum imaging device and method, and relates to the technical field of optical systems.The imaging device comprises a visible near-infrared telescope, a near-infrared imaging assembly, a visible light imaging assembly, a compensating mirror set, an LCVR assembly and an LCTF assembly; the system works cooperatively under a common-caliber framework composed of the near-infrared imaging assembly, the visible light imaging assembly and the light splitting assembly, visible light and near-infrared light are subjected to polarization spectrum imaging at the same time, the voltage of the LCVR assembly and the voltage of the LCTF assembly are accurately controlled, flexible modulation of the polarization state and wavelength of light is achieved, high-quality polarization spectrum information is obtained, and high-precision imaging is achieved. The polarization spectrum imaging system has the advantages of being high in efficiency and dynamic, effectively reducing light energy loss, achieving efficient polarization and spectrum modulation of a dynamic scene, and solving the technical problems that an existing polarization spectrum imaging system is large in size, low in integration level, low in response speed and serious in light energy loss.

The invention discloses a target identification method based on polarization spectral imaging. Relates to the technical field of photoelectric detection and recognition, in particular to a target recognition method based on polarization spectral imaging. According to the invention, a density peak value clustering wave band selection method based on image entropy is adopted, characteristic wave bands are extracted, and a multi-scale information fusion algorithm and a deep learning technology are combined, so that efficient detection and identification of a camouflage target are realized, and the accuracy and robustness of target identification are remarkably improved. The method comprises the following steps: obtaining and preprocessing a polarization spectrum data cube; for the data processed in the step S1, extracting a characteristic wave band; carrying out multi-scale fusion on the polarization spectrum under the characteristic wave band, and calculating a fusion image; and inputting the fused image into a YOLOv11 model for classification to obtain a classification result of target identification.

This invention provides a single-stage hyperspectral image dehazing and reconstruction method based on joint polarization spectral priors, comprising the following steps: Step 1, haze imaging modeling; Step 2, acquiring joint polarization spectral compressed observation data; Step 3, constructing a single-stage polarization spectral reconstruction neural network; Step 4, network training and optimization. The integrated reconstruction architecture proposed in this invention effectively overcomes the limitations of traditional "two-stage" methods. By directly establishing an end-to-end mapping from compressed observations to clear hyperspectral images, it avoids the cumbersome computational steps involved in dehazing followed by reconstruction (or vice versa), significantly improving inference efficiency.

This invention discloses a microfluidic-based polypeptide-based helical fiber with circularly polarized luminescence and its preparation method, belonging to the field of nanotechnology. Utilizing multiple hydrogen bonding interactions between polypeptides and based on the solute conformational confinement and ordered solvent diffusion mechanism of a microfluidic laminar flow chip, this invention develops a polypeptide-based circularly polarized luminescent material with excellent luminescence performance. Circular dichroism spectroscopy and circular polarization spectroscopy tests show that the helical fiber material obtained by this invention exhibits mirror-symmetric signals. Compared with materials obtained by traditional solution stirring, the polypeptide-based helical fibers prepared in the microfluidic chip by this invention not only have a more uniform morphology but also a larger... g lum value( L -Peptide / TBI and D The luminescence asymmetry factor of -Peptide / TBI is ±1.9×10⁻⁶. ‑3 Furthermore, this method has a certain degree of universality and is applicable to the assembly of other macromolecules, including polymers, nucleic acids, and proteins.

The application belongs to the field of polarization measurement, and particularly relates to a space solar spectrum magnetic field telescope based on multi-wave plate polarization modulation, which comprises a telescopic system, a relay system and a spectral imaging system; the telescopic system comprises a first 1 / 2 wave plate, a 1 / 4 wave plate and a second 1 / 2 wave plate; when neither the first 1 / 2 wave plate nor the second 1 / 2 wave plate fails, the second wave plate is kept static, the first wave plate and the third wave plate are rotated in the same direction according to a preset different-speed non-synchronous motion time sequence, and measurement of full Stokes components of solar polarization spectrum is realized; when any one of the first 1 / 2 wave plate or the second 1 / 2 wave plate fails, the 1 / 4 wave plate is started, and is rotated in the same direction with the other normal 1 / 2 wave plate according to a re-planned different-speed non-synchronous motion time sequence, so as to maintain the measurement of full Stokes components of solar polarization spectrum. The application can realize full Stokes measurement, and fills the gap of the space solar vector magnetic field detection capability in China.

The invention provides a polarization spectrum three-dimensional imaging method and device using an intelligent algorithm, and relates to the field of three-dimensional imaging, a three-dimensional model and a polarization spectrum image are collected, and the three-dimensional model and the polarization spectrum image are processed to obtain a real normal, combined polarization information, normal prior information and spectral information; constructing a polarization spectrum three-dimensional normal reconstruction model based on physical constraints by using the combined polarization information, the normal prior information and the spectral information, training the polarization spectrum three-dimensional normal reconstruction model by using a real normal to obtain an optimal polarization spectrum three-dimensional normal reconstruction model, and setting a loss function and an evaluation index to evaluate the model; and inputting the polarization spectrum information of the target scene into the polarization spectrum three-dimensional normal reconstruction model to generate a prediction normal of the target scene, and reconstructing a three-dimensional shape of the target according to the prediction normal. According to the polarization spectrum three-dimensional imaging method and device using the intelligent algorithm, the reconstruction precision of the three-dimensional normal is effectively improved.

This invention discloses a system and method for flyby detection of asteroid hyperspectral polarization characteristics, belonging to the field of optical detection technology. The system comprises an orthogonal mirror module, a polarization spectral modulation module, a front imaging lens, a microlens array, a collimating lens, a spectral dispersive element, a focusing lens, an image detector, and a data processing unit. The detection system uses the orthogonal mirror module to enable a satellite platform to track and stare at the asteroid during high-speed flyby. It also introduces a microlens array to replace the slit in a traditional imaging spectrometer, and, combined with the polarization spectral modulation module, simultaneously acquires a two-dimensional image, hyperspectral, and polarization information of the target asteroid in a single measurement. This invention achieves multi-angle hyperspectral polarization snapshot imaging detection of asteroids during high-speed flyby.

The application provides a star-borne multi-view polarization spectrum imaging system for aerosol optical parameter measurement, and belongs to the technical field of optical imaging. The system is carried on a satellite platform, and comprises a telescope objective, a multi-slit assembly, a light-splitting prism, a collimating lens group, a plane grating group, an imaging lens group, a depolarization light-splitting prism group, a polaroid group and a detector group. The system is based on static multi-view synchronous observation design, and realizes high-precision detection of aerosol optical parameters through multi-view, hyperspectrum and full-polarization multi-dimensional information fusion.

According to the polarization spectral imaging device, incident light of a target object is divided into a dispersion imaging light path and a polarization imaging light path, and the dispersion imaging light path sequentially passes through a dispersion element and a first rear lens group and then forms a dispersion spectral image containing spectral information of the target object on a monochromatic detector array; the polarization imaging light path forms a polarization image containing polarization information of a target object on the DoFP detector array after passing through the second rear lens group; the polarization spectrum calculation and reconstruction system performs mathematical modeling on a transmission process of polarization spectrum information of a target object by using a forward projection mathematical model, and a neural network model performs calculation and reconstruction on dispersion spectrum projection data and polarization projection data output by the forward projection mathematical model and generates a polarization spectrum image; the imaging device has the advantages of high data acquisition real-time performance and high light utilization efficiency, and the polarization spectrum image obtained through calculation and reconstruction of the calculation and reconstruction system is high in quality.

The invention belongs to the field of polarization remote sensing spectral imaging, and particularly relates to an omni-directional multi-angle polarization spectral imaging system and method based on LED illumination modulation, and the system mainly comprises an illumination light generation module, an image collection module, a circular rail sliding module and a dual-body control module. Wherein the illumination light generation module is used for generating parallel light beams formed by a plurality of quasi-monochromatic light beams with different wavelengths; the image acquisition module is used for acquiring images of a target object in four polarization directions at different observation angles and different illumination wavelengths by a polarization camera, and meanwhile, the computer is used for solving and calculating the polarization degree and the polarization angle of the target object; the circular rail sliding module serves as a zenith angle adjustment execution unit, a stepping motor is used for driving the polarization camera to slide along a rail on the supporting frame, and when the polarization camera stays at a preset zenith angle, collection of polarization images is completed synchronously; the double-body control module serves as an azimuth angle adjustment execution unit, a servo motor is used for driving the hollow rotating platform and the turntable bearing to rotate, and the rotating angle and speed of the hollow rotating platform and the turntable bearing are in cooperative linkage with a zenith angle adjustment time sequence, so that the straight square tube is driven to rotate by 360 degrees, manual intervention is not needed in the whole process, and full-space azimuth angle coverage type polarization spectrum image acquisition is completed. Due to time sequence cooperation of the multiple LED light sources and efficient linkage of zenith angle-azimuth angle two-dimensional automatic adjustment, multi-wavelength and multi-angle collection of a target polarization spectrum can be achieved within a short time, and collection efficiency and data consistency are greatly improved.

The application discloses a kind of based on polarization spectrum unfrozen water content prediction method and system, medium, terminal, it is related to soil detection technical field, main purpose is in to improve the problem of the prediction accuracy reduction of unfrozen water content prediction model based on reflectivity construction caused by the change of soil surface reflection characteristic in the ice crystal structure formation process.It includes: collecting the multi-angle polarization spectrum of the soil sample to be measured at the target temperature, and carrying out decomposition processing to obtain a set of polarization component spectrum;Determine the target freeze-thaw stage based on the target temperature;Based on the stage input feature subset corresponding to the target freeze-thaw stage, generate target input feature combination;Based on the stage unfrozen water content prediction model matched with the target freeze-thaw stage, generate the predicted unfrozen water content according to the target input feature combination.

The invention discloses a polarization spectrum-based unfrozen water content prediction method and system, a medium and a terminal, and relates to the technical field of soil detection. The method mainly aims at solving the problem that the prediction precision of an unfrozen water content prediction model constructed based on reflectivity is reduced due to the change of soil surface reflection characteristics in the ice crystal structure forming process. Comprising the following steps: collecting a multi-angle polarization spectrum of a to-be-detected soil sample at a target temperature, and performing decomposition treatment to obtain a polarization component spectrum set; determining a target freezing and thawing stage based on the target temperature; generating a target input feature combination based on the stage input feature subset corresponding to the target freeze thawing stage; and based on a stage unfrozen water content prediction model matched with the target freezing and thawing stage, generating predicted unfrozen water content according to the target input feature combination.

The invention provides a multifunctional magneto-optical spectrum testing system and method, a spectrum system is divided into an absorption spectrum and a luminescence spectrum, different polarization (or non-polarization) spectrums of absorption (or luminescence) can be divided by adjusting polarization (or non-polarization) and polarization forms (circular polarization or linear polarization) of a light path, an electromagnet is introduced into the light path, and the absorption spectrum and the luminescence spectrum can be separated into different polarization (or non-polarization) spectrums of absorption (or luminescence) by adjusting the polarization (or non-polarization) and the polarization forms (circular polarization or linear polarization) of the light path. The test requirement is met by regulating and controlling the size and direction of the magnetic field. According to the system and the method, a relatively wide test parameter adjustment range can be provided, each element in the system can be flexibly adjusted, the system is convenient to use and easy to implement, the accuracy of test data can be improved while high-efficiency test is provided, and the system and the method are suitable for scientific research and industrial application in the fields of various physics, chemistry, materials, chemical engineering and the like.

This spectral characteristic estimating device comprises: a spectral image acquiring unit that acquires one spectral image; and a spectral characteristic estimating unit that, on the basis of the one spectral image acquired by the spectral image acquiring unit and a deep model generated on the basis of a plurality of polarized spectral images and a plurality of spectral images, estimates spectral characteristics relating to the one spectral image without using a reference object having a known spectral reflection characteristic for estimating illumination spectral characteristics.

The application discloses a kind of diffractive metasurface full stokes polarimetric spectrum detection system and method, belong to micro-nano optics and polarimetric spectrum detection technical field, the technical problem to be solved is the detection and reconstruction of polarimetric spectrum information, technical solution points are: optical coding module includes diffractive metasurface, the diffractive metasurface includes nanometer column arranged according to preset rule, for polarized multiplexing phase modulation and spectral dispersion coding to incident light, different polarization state and wavelength incident light information is converted into spatial diffraction distribution;Photoelectric conversion module is located on the diffraction light path of the diffractive metasurface, for single exposure recording the diffraction distribution, generates two-dimensional original intensity image;Information recovery module is connected with the photoelectric conversion module, built-in pre-trained deep learning model, for the full stokes polarimetric spectrum information of incident light in the two-dimensional original intensity image is decoupled and recovered.

This invention relates to a terahertz time-domain ellipsometric spectrometer based on optical asynchronous sampling, comprising: a pump laser for generating a first femtosecond pulse to excite a terahertz transmitting antenna to emit terahertz light; an incident arm assembly for converting the terahertz light into an incident beam that meets the requirements of ellipsometric measurement and illuminating the surface of the sample under test at a preset incident angle; an exit arm assembly for collecting reflected terahertz light carrying information about the sample under test and focusing the desired polarization component light selected from the reflected terahertz light onto a terahertz receiving antenna; a probe laser for generating a second femtosecond pulse to trigger the terahertz receiving antenna to generate a photocurrent; and a signal processing module for amplifying the photocurrent and converting it into a voltage signal for sampling; wherein the pump laser and the probe laser are locked by an electronic phase-locked loop to maintain a stable repetition frequency difference. This invention enables high-speed, high signal-to-noise ratio, and high-stability full polarization spectral measurement.

The invention belongs to the field of polarization remote sensing spectral imaging, and particularly relates to an omni-directional multi-angle polarization spectral imaging system and method based on a multiband LED rotating array, and the system mainly comprises an illumination light rotating module, an image acquisition module, a circular rail sliding module and a dual-body control module. Wherein the illumination light rotation module serves as a system light source core, quasi-monochromatic parallel light beams with specific wavelengths can be generated through single irradiation, and switching output of different wavelengths is supported; meanwhile, the rotary adjusting capacity is achieved, the light beam emitting direction can be accurately calibrated, and the consistency of the illumination light source direction is guaranteed; the image acquisition module adopts a polarization camera as a core detector to acquire polarization spectrum images of a target object under different conditions; the circular rail sliding module takes a stepping motor as a power source, the polarization camera slides along a circular rail on the support frame, and the image acquisition module synchronously completes acquisition of polarization images; the double-body control module takes a servo motor as a power source and respectively drives the hollow rotating platform and the gear to rotate, the gear simultaneously drives the turntable bearing to rotate so as to drive the support frame to realize 360-degree rotating motion, and the image acquisition module synchronously completes acquisition of polarization images. According to the invention, through the design of the rotating structure of the LED light source, multi-wavelength and multi-angle acquisition of a target polarization spectrum can be accurately realized, the consistency of spectral data is remarkably improved, and efficient and reliable technical support is provided for polarization remote sensing spectral imaging application.

The invention discloses a high-precision large-range polarization spectrum measurement system and a polarization spectrum measurement method, and solves the technical problems of low measurement precision, complex regulation and control, weak degree of freedom and large energy loss of the existing polarization spectrum measurement system. The light source module is adopted for active illumination, the incident light intensity can be increased, and external environment interference is avoided; meanwhile, the light source module is used for generating measurement light beams with different wavelengths, the micro-polarization array is combined, simultaneous measurement of spectral information and polarization information is achieved, and the problem that the polarization spectrum measurement precision is limited due to the fact that a traditional discrete polarization spectrum measurement system is low in information acquisition dimension can be solved; besides, reflected light beams of different wavelengths of the to-be-measured sample are respectively focused to the micro-polarization array by using the zoom lens, so that real-time polarization spectrum measurement of the to-be-measured sample in the depth direction is realized, the regulation and control precision is high, and the size is small.