640 results about "Wavefront" patented technology

The embodiment of the invention provides an environment monitoring method and system based on 5G. According to the method, a dynamic coupling sensing field is constructed in a 5G network coverage domain, an adaptive topology with nonlinear interaction of parameters is established, and when parameter abnormity is detected, differential geometric reconstruction of a 5G network slice control surface is triggered based on Riemannian curvature change. And constructing a space-time manifold space at the 5G edge computing node, decomposing and extracting a diffusion principal curvature direction, and iteratively solving a propagation rate of an abnormal parameter in combination with a geodesic equation to generate a diffusion leading edge envelope surface. And according to the main curvature distribution characteristics of the diffusion leading edge envelope surface, constructing a dynamic sampling optimizer, generating an exponential decay sampling function, and deploying a directional sensing wavefront. And carrying out conformal tightening processing on the sampling function and the geographic grid to generate an interactive holographic manifold, establishing an aging judgment criterion of an abnormal level based on curvature 2-form characteristics, and triggering a graded early warning pulse wave packet. According to the technical scheme provided by the embodiment of the invention, the real-time performance and precision of environment monitoring are improved.

The invention discloses a shock wave overpressure field global measurement method based on multi-view image fusion, belongs to the technical field of explosive shock wave measurement, and is suitable for weapon equipment power evaluation and blasting safety analysis. The method comprises the following steps of: synchronously acquiring a time sequence image of the whole explosion process through a distributed multi-view high-speed imaging system, preprocessing the image by adopting pixel-by-pixel comparison, square operation enhancement and normalization processing, and positioning a shock wave edge contour; the blasting center coordinate is positioned through binocular parallax, the shock wave initial radius is determined by combining spatial domain analysis, and the key feature points of the front and rear edges of the wavefront are detected by using a dynamic search window and a radial gradient field. Based on multi-view constraints, a three-dimensional point cloud is generated through direct linear triangulation, and a three-dimensional wave front form is reconstructed in combination with least square spherical fitting. And finally, constructing a wavefront radius-time evolution model, and deducing a quantitative relationship between the instantaneous propagation velocity and the peak overpressure in combination with a Ranki ne-Huton iot relationship, thereby realizing the global high-precision calculation of the overpressure field.

The invention discloses a molded case circuit breaker short-circuit fault positioning method, and the method comprises the steps: obtaining the current differential response data of all branches of a molded case circuit breaker control loop when a short-circuit fault occurs based on a magnetoresistive sensor, obtaining a first data set, analyzing the first data set, and extracting the wavefront features of each branch; wavefront arrival time is obtained based on wavefront features, the first data set is input into a wave velocity calibration model to obtain frequency-dependent wave velocities of all branches, and the wavefront arrival time and the frequency-dependent wave velocities are input into a short-circuit fault positioning model to obtain space coordinates of fault points; and carrying out confidence evaluation on the fault point space coordinates to obtain an evaluation result, and judging whether to send the fault point space coordinates to a terminal user based on the evaluation result. The current differential response data is obtained based on the magnetoresistive sensor, the wavefront features are extracted, the frequency-varying wave velocity calibration and path compensation optimization model is combined, the problems of insufficient signal capture, wave velocity modeling deviation and low time difference detection precision in a traditional method are solved, and the short-circuit fault positioning method has the advantage of improving the short-circuit fault positioning precision and reliability.

The invention provides a differential InSAR system, method and application and a readable storage medium. The system comprises a laser emission module, a radar detection module and a self-adaptive optical compensation module. The laser emission module supplies energy to the system and splits light; the radar detection module cooperatively detects a target by means of two symmetrical branches, and acquires and processes echoes to achieve the purpose of differential detection. The adaptive optical compensation module corrects laser wavefront distortion caused by atmospheric turbulence in real time according to deep learning and a wavefront detection mechanism, and ensures accuracy and stability of long-distance remote sensing. The method is characterized in that the adaptive optical performance is improved by combining deep learning, and phase noise is suppressed. The method has far-reaching significance in the fields of topographic mapping, geological disaster monitoring and the like, and can accurately measure the topographic elevation and the ground surface infinitesimal displacement, for example, the early millimeter-level variation is sensitively captured in the landslide early warning, and the opportunity is robbed for disaster prevention and control.

The invention discloses a primary and secondary mirror combined detection system and method for a beam shrinking system, and belongs to the technical field of optical detection.The method comprises the steps that a first micro-spherical mirror and a second micro-spherical mirror are arranged, reflection light spots are captured through an interferometer, the position offset is calculated, and a first control instruction for adjusting the pose of a secondary mirror is generated; a dual-band light source is integrated in a detection light path, wavefront data and alignment monitoring data are collected, and temperature drift is corrected to obtain effective combined wavefront; an error separation model is constructed based on the primary mirror compensator parameter and the Zernike aberration coefficient, and a primary mirror surface shape error component and a secondary mirror offset error component are decoupled and separated by using a preset aberration coupling coefficient; feeding the error component back to a polishing process and a displacement table for closed-loop iterative correction until the RMS value and the PV value of the effective combined wavefront meet a preset imaging quality index; through precise positioning, error correction and decoupling separation, the precision and efficiency of primary and secondary mirror combination detection are improved, and targeted correction is realized.

The invention discloses a far-field imaging system, a metasurface grating and an imaging terminal, and relates to the technical field of image generation. Dynamic environment compensation and imaging quality optimization are realized through cooperation of multiple modules of the system: the environment temperature is read in real time, the refractive index of the metasurface grating is corrected according to a pre-stored mapping relation, and a target wavefront function is constructed and dispersed to obtain an initial phase distribution matrix; dividing a focusing area in combination with a user sight line, and compensating and regulating a phase distribution matrix by voltage gradient; based on the divided buffer and background regions, a multi-region sampling rate is configured to generate a mask, and the collection efficiency of the key region is improved; monitoring far-field information change in real time, and selecting an interpolation or total variation strategy to update the image; by means of image definition feedback, a secondary phase correction term is superposed to optimize a phase distribution matrix; the problems of traditional far-field imaging in the aspects of environment adaptation, dynamic focusing, data acquisition and imaging quality are solved, and the method is suitable for augmented reality glasses and the like.

The invention discloses a wavefront correction system and method for an offshore quantum key distribution system, and relates to the technical field of wavefront correction, and the system comprises a laser, a transmission light path, a redundant light optical antenna, at least three local oscillator light optical antennas, a signal preprocessing module and a wavefront correction module. The laser generates an initial optical signal; the transmission optical path divides the initial optical signal into a local oscillator optical signal and a redundant optical signal, and transmits the local oscillator optical signal, the redundant optical signal and an echo signal; the local oscillator optical antenna transmits a local oscillator optical signal and receives a local oscillator echo signal in a corresponding direction; the redundant light optical antenna transmits a redundant light signal and receives a redundant echo signal in a corresponding direction; the signal preprocessing module preprocesses and corrects the local oscillator echo signal and the redundant echo signal to obtain a target beam signal; and the wavefront correction module calculates a real-time atmospheric turbulence value according to the target beam signal to carry out wavefront correction. The three-dimensional velocity vector component of the carrier can be measured at the same time.

The invention discloses a high-throughput multi-row parallel high-speed scanning high-resolution microscopic imaging device and method based on adaptive optics. A spatial light modulator is used for carrying out pixel-level regulation and control on a light beam phase to generate a strip-shaped light spot, and a special arrangement mode of a detector array is used for realizing a one-to-many relationship between a scanning line and an imaging line and realizing improvement of an imaging speed, a signal-to-noise ratio of an imaging result and a resolution ratio; a full-digital area array wavefront regulation and control method is utilized, a spatial light modulator is used for rapidly and dynamically compensating a laser wave surface according to imaging result feedback, the laser wave surface is free of distortion, and the influence of aberration on an imaging result is reduced; designing a double telecentric Fourier transform structure capable of simultaneously keeping rotational symmetry of object plane and image plane light beams, and realizing distortionless mapping of scanning light beam quality and a linear signal system; a switchable design of two scanning modes is developed, high-flux, high-resolution and high-speed light field scanning is realized, and the advantages of large visual field, high resolution and high frame rate imaging are achieved.

The invention relates to a method for manufacturing a low-wavefront-error double-blazed grating for electron beam gray lithography, which comprises the following steps of: decomposing dose parameters of an electron beam into average dose and dose difference, decomposing grating parameters into grating height and grating depth, and constructing a mathematical model between the average dose and the dose difference; through differential calculation and least square fitting, the relation between the dose parameter and the height and depth of the grating is optimized, and then high-precision manufacturing of the target grating is achieved. The method comprises the following specific steps: firstly, decomposing dose and grating parameters, and establishing a first mathematical model among grating height, depth and dose parameters; and then obtaining relational data through an experiment, performing optimization calculation by using the second mathematical model, and finally obtaining a dose parameter corresponding to the target grating. And finally, manufacturing the double-blazed grating with the low wavefront error according to the target parameters. According to the method, wavefront errors can be effectively reduced, the photoetching precision is improved, and the method has relatively good manufacturing consistency and is suitable for the production requirements of high-precision gratings.

The invention discloses a compensation device and method for a digital holographic microscope, relates to the technical field of optical imaging, and can dynamically adjust optical response according to wavefront distortion data measured in real time by using a deformable lens group and a real-time wavefront sensing technology. The adaptive optical element accurately controls the light wavefront, effectively expands the imaging depth, optimizes the focus control, and enhances the resolution. In addition, according to the compensation phase algorithm, the required compensation is calculated by introducing a regularization item, so that the adaptability of the algorithm to environment change is improved, and the robustness of the algorithm in the imaging process is enhanced. Reconstruction and post-processing, such as phase recovery and image sharpening, of the digital hologram are carried out through the constructed phase recovery algorithm, a high-quality imaging result can still be generated under the condition that noise is large or imaging conditions change, and it is further guaranteed that the algorithm can maintain high performance under various imaging conditions.

A self-mixing interferometer configured to monitor particulate material within a monitored region of space comprising a laser cavity assembly (1A) and an optical assembly (1B) configured to bathe the monitored region with laser light of the interferometer. A laser monitoring unit (1C) is configured to acquire an interferometric signal generated by the interferometer in response to light returned to the laser cavity assembly from said wavefronts by said particulate material. A processing module (1D) is configured to determine a property of the particulate material within the monitored region according to a structure in data describing the interferometric signal in a frequency-space transformation thereof wherein at least a part of the interferometric signal comprises a waveform of changing frequency.

The invention relates to a coherent free space optical communication system based on an RBMGC optimization algorithm, belongs to the technical field of optical communication, and solves the problem of poor high-order aberration correction effect caused by insufficient high-order phase aberration correction capability of an existing SLAO system optimization algorithm under a complex atmospheric turbulence condition. The SLAO system comprises a high-speed camera, a wavefront controller and a wavefront corrector, an RBMGC optimization algorithm is operated in the wavefront controller to generate an optimal voltage control signal of the wavefront corrector, and the RBMGC optimization algorithm adopts a self-adaptive step length updating mode established based on a gradient correction mechanism to update the position in an exploration stage and a development stage. Therefore, the search process is optimized. The RBMGC optimization algorithm has better convergence rate, correction precision and robustness when correcting the high-order aberration under the complex turbulence condition, the correction effect of the SLAO system on the high-order aberration is improved, and the communication performance of the CFSOC system is improved.

The invention discloses a high-capacity optical communication adaptive damage compensation and demodulation system, which is applied to the technical field of optical communication. Comprising a beam splitter, an XFTC-Net model, a wavefront corrector and an OAM demultiplexer. The beam splitter divides the received distorted OAM light beam into transmission light and reflection light, the transmission light and the reflection light are distorted OAM information light beams, the transmission light is input to the wavefront corrector, the reflection light is input to the XFTC-Net model, the wavefront corrector completes distorted OAM light beam adaptive damage compensation by using a first output result of the XFTC-Net model, and the distorted OAM light beam adaptive damage compensation is realized by using a second output result of the XFTC-Net model. And the OAM demultiplexer completes OAM light beam demodulation by using the second output result of the XFTC-Net model. According to the invention, on the basis of completing atmospheric turbulence distortion phase reconstruction, the mode identification of the OAM light beam is realized, a probe light beam path does not need to be additionally arranged, and while the correction precision is ensured, the system complexity is effectively reduced, and the OAM integrating miniaturization and high precision is realized.

The invention relates to a hundred-milliwatt high-power high-repetition-frequency terahertz strong source generating device at room temperature, belongs to the technical field of nonlinear optical frequency conversion, and solves the problems that the terahertz conversion rate is low and additional cooling equipment is needed in the prior art. The beam expanding lens group is used for carrying out light spot beam expanding on the femtosecond pumping laser until the diameter of a light spot is twice of the original diameter; the plane mirror group is used for guiding the pump laser after beam expansion; the first half-wave plate, the reflective diffraction grating, the gold reflector and the third ultrafast reflector are used for adjusting polarization and diffraction reflection; the 4-f telescope imaging lens group is used for reducing the spot diameter of the received pump laser and imaging the pump laser to the lithium niobate crystal; the lithium niobate crystal generates terahertz pulse radiation in the direction perpendicular to the wavefront; the terahertz collection module receives and focuses the terahertz pulse radiation; and the measuring device is used for receiving the focused terahertz pulse radiation for measurement.

The invention discloses a random two-step inclined phase shift wavefront detection method based on deep learning, and solves the problems of harsh requirements on a measurement environment and large measurement errors in the prior art. The method comprises the following steps: carrying out analogue simulation to obtain two interferogram databases; establishing a neural network model, and dividing the interferogram database into a training set and a test set; inputting the training set into the neural network model for training to obtain a trained neural network model; inputting the test set into the trained neural network model for testing, and outputting a wavefront phase calculation value; calculating an error between the wavefront phase calculation value and the wavefront phase simulation value until a new neural network model is obtained; and obtaining multiple frames of interference fringe patterns of the to-be-detected optical element, inputting the interference fringe patterns into the new neural network model, and outputting a real wavefront phase of the to-be-detected optical element, thereby realizing random two-step inclined phase shift wavefront detection based on deep learning. The method is simple in operation and high in measurement precision.

The invention relates to a method capable of measuring peripheral aberration of a retina. The method comprises the following steps: acquiring wavefront images at a plurality of positions on a retina, and for each wavefront image, carrying out the following processing: searching each light spot in the wavefront image; the light spot located at the centermost position in all the light spots serves as a standard light spot, the wavefront reference pattern is integrally moved, the center position of the wavefront reference pattern is made to coincide with the center of the standard light spot, and a corrected reference pattern is obtained; calculating the deviation condition of each light spot and the corresponding reference position in the correction reference pattern; and determining the aberration of the retina at the position according to each offset condition. The method can realize rapid and accurate wavefront image acquisition in multiple scanning modes, and is high in automation level and convenient to operate.

The present disclosure provides systems and methods for coupling light in imaging systems. One such system comprises a metalens doublet structure having a first substrate; a first metalens structure provided at a surface of the first substrate and comprising a plurality of first scatterers; and a second metalens structure provided at a second substrate or on another surface of the first substrate and comprising a plurality of second scatterers. Accordingly, the plurality of first scatterers is configured to reshape the intensity distribution of light that is received by the first metalens structure at a location of the second metalens structure; and the plurality of second scatterers is configured to change a wavefront of the light outputted from the first metalens structure and incident on the second metalens structure.

The invention discloses a deformable mirror control method and device based on voltage iterative prediction, and belongs to the field of wavefront processing control, and the method comprises the steps: completing the subaperture segmentation of distorted wavefront, and obtaining the wavefront slope of a subaperture containing noise; performing model parameter identification on the wavefront slope of the sub-aperture based on the AR model of the sub-aperture slope, obtaining the optimal prediction slope at the n moment, and obtaining the prediction voltage un at the n moment; and taking a result obtained by iteratively subtracting the predicted voltage un at the n moment and the control voltage us-1 applied at the n-1 moment as an error control signal ue, inputting the error control signal ue into a controller for processing to obtain a control voltage us at the n moment, amplifying the control voltage us by a high-voltage amplifier, and then applying the control voltage us to the correction deformable mirror. The high-order high-frequency aberration can be effectively corrected, the change of the control voltage of the deformable mirror is smoother, the voltage overshoot caused by directly applying the prediction voltage is eliminated, and the stability of a control system is improved.

The invention discloses an interferometer instrument transfer function measuring method based on a spatial light modulator, which comprises the following steps of: carrying out inherent phase difference compensation on the spatial light modulator; generating a group of sinusoidal phases with different periods and the same amplitude, and measuring sinusoidal phase results under different sinusoidal phases by using a wavefront interferometer and a spatial light modulator; and calculating an ITF value according to the obtained sinusoidal phase results under different sinusoidal phases, and drawing a fitting curve graph with the ITF value as the ordinate and the frequency as the abscissa to obtain a transfer function curve of the wavefront interferometer to be measured. The invention aims to realize the method for measuring the transfer function of the interferometer instrument, which can meet the international standard definition and is not restricted by processing conditions, and the measurement precision, the frequency coverage range and the flexibility are improved.

The invention discloses a polarization imaging device and a polarization analysis method based on single-frame polarization collinear holography, and relates to the field of polarization imaging.According to the polarization imaging device, through combination of optical elements such as a half-wave plate, a Wollaston prism and a CCD camera, spatial multiplexing of a detector plane is carried out, and the polarization collinear holography is obtained. And four polarization collinear holograms can be simultaneously acquired by a single frame. According to the polarization analysis method, a Fourier transform auxiliary angular spectrum method is adopted to analyze an intensity distribution diagram of a polarization collinear hologram to estimate initial wavefront distribution, and an iterative finite support constraint selection method is adopted to solve the problem of twin images in the polarization collinear hologram. And further quantizing a complete Jones matrix and a complete Stokes parameter from the finally reconstructed complex amplitude information. The invention solves the problems of high complexity and long processing time caused by independent reconstruction of amplitude, phase and polarization in the traditional polarization holographic technology, and effectively solves the problem that the traditional off-axis polarization holographic imaging system limits the size of an imaging field of view.

An example method for improving a metasurface design may include providing a first wavefront; providing a library of metasurface elements, wherein each metasurface element has a variable phase response; creating a metasurface design by selecting metasurface elements via the library based on the first wavefront; simulating an electromagnetic response of the metasurface design; measuring a second wavefront based on the metasurface design; calculating an error between the first wavefront and the second wavefront; and generating a new phase profile by subtracting the error from the first wavefront and the second wavefront. Various other methods, systems, and computer-readable media are also disclosed.

The invention relates to a self-adaptive optical matrix calculation acceleration method based on an ARM framework, and belongs to the field of self-adaptive optical wavefront correction technology and embedded parallel calculation. The method comprises the following steps: analyzing a mathematical mapping relationship between a microlens array and wavefront phase distribution in a Hartmann sensor image, and constructing a wavefront matrix operation model based on an ARM multi-core architecture; designing a Hartmann image data rearrangement strategy, dividing a single-frame Hartmann image into multiple task calculation units, and realizing parallelization processing of wavefront slope calculation; a wavefront matrix operation kernel is optimized according to ARM NEON instruction set characteristics, and vectorization calculation of multi-channel wavefront reconstruction is realized by adopting an SIMD parallelization technology; and computing resource allocation is coordinated through a dynamic thread scheduling algorithm, and the task allocation proportion among multiple cores is adjusted according to the real-time load condition. According to the method, the wavefront calculation efficiency is remarkably improved, so that the overall bandwidth of the adaptive optical system is greatly improved.

The invention belongs to the field of solid lasers, and particularly relates to a laser for realizing high-power pump beam quality enhancement based on multi-stack heat transfer, which comprises a pump module, a pump shaping coupling module, a multi-stack crystal, a cube-corner prism, an output mirror and a cooling device. And the multi-laminated crystal adopts a high-thermal-conductivity diamond film, so that transverse rapid diffusion of heat is realized, local heat accumulation and temperature rise are relieved, wavefront distortion and a thermal lens effect caused by thermally induced refractive index change are reduced, and the stability of a laser mode is improved. The cube-corner prism is used as a resonant cavity mirror surface, can automatically compensate angle deviation, optimizes mode matching in the cavity, has a synergistic effect with a zigzag total internal reflection path in the crystal, further balances a heat affected zone, improves light field distribution, and remarkably improves light beam uniformity, stability and TEM00 mode quality. The structure is high in adaptability, is suitable for various wavelengths, pumping modes and thermal loads, and assists the laser to realize miniaturized, high-integration and high-performance output.

The invention provides a three-dimensional holographic imaging method. The method comprises the following steps: loading a holographic pattern to be imaged to a spatial light modulator; modulating a preset laser source by using a spatial light modulator loaded with a holographic pattern to form a first wavefront with initial phase information; carrying out primary scattering on the first wavefront by adopting a first turbid medium lens to form a second wavefront; compensating the second wavefront by adopting a metasurface compensation unit to form a third wavefront; after a second turbid medium lens is adopted to carry out secondary scattering on the third wavefront, a holographic imaging system is utilized to carry out imaging; wherein the metasurface compensation unit is determined according to a transmission matrix of the first turbid medium lens and a transmission matrix of the second turbid medium lens. The imaging view angle can be effectively increased, and the space bandwidth product can be improved.

A combined beam having a desired wavefront is produced from a first electromagnetic beam propagating in a beam direction and a second electromagnetic beam propagating in the beam direction and interfering with the first electromagnetic beam in an interference region. A first power measurement indicates a first combined power of the first electromagnetic beam and the second electromagnetic beam at a first sample point in the interference region. A second power measurement indicates a second combined power of the first electromagnetic beam and the second electromagnetic beam at a second sample point in the interference region. A phase difference between the first electromagnetic beam and the second electromagnetic beam is determined using the first power measurement and the second power measurement. The phase of the first beam can be changed based on the phase difference to produce the combined beam that has the desired wavefront.

The utility model relates to the field of wavefront detection, and provides a large-aperture light beam wavefront detection device which comprises a beam shrinking system which comprises a light beam receiving end lens group and a light beam transmitting end lens group, the light beam receiving end lens group comprises a plurality of receiving end lenses arranged in an array mode, and the light beam transmitting end lens group comprises a plurality of transmitting end lenses arranged in an array mode. The transmitting end lenses and the receiving end lenses are arranged in one-to-one correspondence; the micro-lens array comprises a plurality of micro-lenses which are arranged in an array mode, and the micro-lenses and the transmitting end lenses are arranged in a one-to-one correspondence mode; the detector array comprises a plurality of detectors arranged in an array mode, and the detectors and the micro lenses are arranged in a one-to-one correspondence mode. Therefore, the light beam receiving end lens, the light beam transmitting end lens, the micro lens and the detector are in one-to-one correspondence to form a wavefront detection unit, a wavefront detection unit array is further formed, and the problems that an existing wavefront detector for measuring large-aperture light beams is large in size and low in imaging resolution are solved.

The invention provides a torsion metasurface frequency reconfigurable holographic method and device based on dispersion regulation and control, and belongs to the field of optical imaging. The problem that an existing mechanical rotary cascade metasurface mainly works at a single fixed frequency and lacks a cross-spectrum function switching capability is solved. The method comprises the following steps: constructing a cascaded double-layer metasurface system which comprises a radiation type metasurface and a pure phase metasurface; the relative torsion angle between the pure phase metasurface and the radiation type metasurface is changed by rotating the pure phase metasurface in a plane, so that the phase distribution of the pure phase metasurface interacts with the output wavefront of the radiation type metasurface; according to the dispersion characteristics of the target holographic image in the three-dimensional space position and frequency, the phase distribution of the radiation type metasurface and the pure phase metasurface is collaboratively optimized through a reverse design frame, and the dynamic switching of the holograms is realized. The method is mainly used in the fields of near-field calculation imaging / detection, high-speed large-data-capacity near-field wireless communication and the like.

The invention discloses a pentaprism scanning wavefront detection device and method based on a pyramid interferogram. The device comprises a guide rail, a pentaprism, a beam splitter prism, a plane spectroscope, a cube-corner prism, an imaging lens and a CCD camera. The method comprises the following steps: firstly, building a measuring light path in front of a to-be-measured wave surface, ensuring that a guide rail is parallel to the to-be-measured wave surface, and obtaining an interference pattern formed by a light beam reflected by a plane spectroscope and a light beam reflected by a cube-corner prism; then, the pitching and inclination angles of the plane spectroscope are adjusted, so that the number of fringes in an interferogram area is 20-50; then the guide rail is moved to scan the wavefront to be measured, and interferograms of the pentaprism at different positions are obtained; and finally, extracting inclination amounts of different positions of the measured wave surface from the interference pattern by using a fast Fourier transform (FFT) algorithm, and obtaining surface shape distribution of the measured wave surface through polynomial fitting. The device is simple in structure and low in cost, can accurately measure the emergent wave of the collimation system, and provides an effective basis for the adjustment of the collimation system.

The invention relates to a high-resolution wavefront measurement method and device for a complex light field, electronic equipment and a storage medium, and the method comprises the steps: obtaining an observation image representing the to-be-measured wavefront intensity distribution based on to-be-measured light waves passing through a scattering sheet; obtaining initial complex amplitude space distribution corresponding to the wavefront to be measured based on the observation image; and inputting the initial complex amplitude space distribution and the observation image into a target function, taking the complex amplitude space distribution under the condition that the numerical value of the target function is minimum as the complex amplitude space distribution corresponding to the wavefront to be measured, and performing wavefront inversion by minimizing the target function to obtain the wavefront to be measured. The objective function comprises a data fidelity term, a spatial smoothness constraint term and a spatial spectrum bandwidth constraint term of the wavefront to be measured. And for a complex light field with strong aberration, turbulent flow or high-order singular points, the high-resolution wavefront is quickly reconstructed. Object information recording and imaging can be supported under the defocus condition, and the method is further suitable for application requirements of rapid and high-throughput detection and the like.

The invention discloses a wavefront restoration method based on multi-path integration, and relates to the technical field of wavefront measurement and restoration, and the method comprises the following specific steps: data collection and initialization: carrying out the preliminary detection of wavefront through a Hartmann sensor microlens array, dividing the space where the wavefront is located into a plurality of rectangular small regions, according to the method, a multi-path calculation phase evaluation value set is introduced, all shortest paths from an initial point to each to-be-estimated point are found by using a shortest path search algorithm, it is ensured that multiple possibilities of wavefront propagation can be considered in the calculation process, and by introducing a path weight distribution mechanism, the estimation accuracy of the wavefront propagation is improved. According to the method, geometric characteristics, optical characteristics and correlation with surrounding paths of paths are comprehensively considered, each path is endowed with different weights, forward integration is carried out on discrete data results by adopting an innovative mixed integration algorithm, local detail loss or error amplification is effectively avoided, and thus a more accurate wavefront phase value is obtained.