Photoelectric telescope photoelectric measurement method, system and equipment

Abstract

The invention relates to the technical field of photoelectric measurement, particularly discloses a photoelectric telescope photoelectric measurement method, system and equipment, and aims to realize the accurate analysis process of multi-angle measurement, reduce the target accurate measurement resistance and ensure the accurate tracking of the light wave signal offset condition. The method comprises the following steps: S1, matching a three-dimensional coordinate system according to position information of an observation optical axis of a photoelectric telescope, and setting photoelectric detectors and encoders in multiple directions; s2, arranging a single-frequency laser and a modulator to carry out interference measurement design, and obtaining a visual axis position interference signal of the light wave of the target light source; s3, tracking and detecting a visual axis position interference signal through a photoelectric detector and an encoder, converting the visual axis position interference signal into an electric signal, performing digital processing on the visual axis position electric signal through a channel data acquisition card, and performing phase post-processing program processing; s4, performing control analysis on the digitally processed information and acquiring a control strategy; and S5, performing analogue simulation optimization according to the control strategy to predict the deviation condition of the target light wave.

Description

Technical Field

[0001] The present invention relates to the field of photoelectric measurement technology, and in particular to a photoelectric measurement method, system and equipment for a photoelectric telescope. Background Art

[0002] In the fields of optical communication, astronomical observation and target range optoelectronic measurement, optoelectronic telescopes (optoelectronic tracking systems) are needed to quickly capture and accurately track targets. Compared with radar detection, optoelectronic tracking systems have long detection distances, high measurement accuracy, low operating costs and good equipment concealment, making them an important target monitoring method.

[0003] The existing methods for solving the problems of long detection distance, low target signal-to-noise ratio, and only suppressing background stray light, providing the accuracy of the incident angles of multiple target light beams, and improving the stability of the telescope measuring head cannot significantly improve the optical-electric measurement line of sight deviation.

[0004] With the development of self-calibration technology, the provision of adaptive lens tracking technology can significantly reduce the measurement error of manually calibrated lenses and improve the accuracy of the measuring head. However, in the process of lens tracking, it is usually impossible to eliminate external information interference. For the changed target, calibration measurement needs to be performed again, which increases the resistance to accurate measurement of the target. It is also difficult to predict in advance the situation where the light wave signal will deviate significantly, and accurate photoelectric tracking measurement cannot be achieved. Summary of the invention

[0005] The purpose of the present invention is to provide a method, system and device for photoelectric measurement of a photoelectric telescope to solve the following technical problems: How to achieve precise analysis of multi-angle measurements, reduce resistance to precise target measurement, and ensure accurate tracking of optical wave signal deviations.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A photoelectric measurement method for a photoelectric telescope, the method comprising: S1. Matching a three-dimensional coordinate system according to the position information of the visual axis observed by the photoelectric telescope, and setting photoelectric detectors and encoders in multiple directions based on the three-dimensional coordinate system; S2. Setting a single-frequency laser and a modulator to perform interferometric measurement design to obtain an interferometric signal of the visual axis position of the target light source light wave; S3, tracking and detecting the visual axis position interference signal through a photoelectric detector and an encoder, and converting the visual axis position interference signal into an electrical signal, the visual axis position electrical signal is digitized by a channel data acquisition card and processed by a phase post-processing program; S4. Conduct control analysis on the digitally processed information to determine whether the control analysis results meet the requirements: If yes, continue the measurement; otherwise, pause the measurement and obtain the control strategy; S5. Perform simulation optimization according to the control strategy to predict the deviation of the target light wave.

[0007] Preferably, step S1 comprises: Real-time acquisition of continuous observation line of sight position signals within a preset observation time period in the photoelectric telescope position area; The three-dimensional position information of the line of sight is obtained by matching the three-dimensional model to the three-dimensional coordinate system of the continuously observed line of sight position signal.

[0008] Preferably, the steps of interferometric design in step S2 are: A single-frequency laser is used to obtain a target light source, and a modulator is set at a reference beam path to perform phase modulation on the reference beam; The modulated reference beam is combined with the signal beam reflected or transmitted from the target in an interferometer to obtain an interference pattern; The interferometer and its optical components are adjusted to ensure that the boresight of the target light wave is precisely aligned with the boresight of the reference beam.

[0009] Preferably, step S3 includes: The photoelectric detector detects and obtains the change of the interference signal at the visual axis position within a preset observation time period. The analog electrical signal is converted into a frequency domain signal through Fourier transformation; The frequency domain signal is converted into a digital signal through a data acquisition card for data analysis and obtaining interference fringe change information; the interference fringe change information includes: fringe position change, fringe shape change and fringe motion change information; The phase change information in the interference signal is extracted through the signal processing technology of the phase post-processing program.

[0010] Preferably, the control analysis method in step S4 is: By formula Calculate the coefficient of deviation ;in, is the preset function; is the difference of interference fringes change, is the phase change difference; The weight coefficient preset for the influence of the interference fringe change on the deviation coefficient value; A weight coefficient preset for the influence of the corresponding phase change on the deviation coefficient value; is the standard interference fringe variation difference, is the standard phase change difference; The difference deviation of the preset interference fringe change; is the preset phase change difference deviation; is the boresight azimuth position coefficient; is the number of whole cycles; is a non-integer period number.

[0011] Preferably: The deviation coefficient The deviation coefficient threshold interval is To compare: like , then it is judged that the deviation of the interference signal at the visual axis position is within the normal range; like , it is judged that the deviation of the interference signal at the visual axis position is not within the normal range, and a control strategy is generated.

[0012] Preferably, step S5 comprises: Inputting the historical standard deviation coefficient set obtained at different positions into the preset dynamic model to train the output control parameters and update the dynamic model; The control parameters and the deviation coefficients obtained in real time within a preset time period are input into the updated dynamic model for simulation, and the optimized control parameters are output to predict the deviation of the target light wave; The control parameters are obtained as follows: By formula Calculate the first Control parameters of each direction ;in, is a preset spatial mapping function used to transform the original data input space of the deviation coefficient into a new feature space; is the preset weight value of the deviation coefficient; For the Deviation coefficient of each orientation; is the standard deviation coefficient; Preset deviation value for the deviation factor.

[0013] A photoelectric measurement system for a photoelectric telescope, comprising: A position information acquisition module is used to match the three-dimensional coordinate system according to the position information of the optical telescope observing the visual axis, and to set the photoelectric detectors and encoders in multiple directions based on the three-dimensional coordinate system; Interference measurement module, used to set up single-frequency laser and modulator to perform interference measurement design and obtain the interferometric signal of the visual axis position of the target light source light wave; A signal processing module is used to track and detect the visual axis position interference signal through a photoelectric detector and an encoder, and convert the visual axis position interference signal into an electrical signal. The visual axis position electrical signal is digitized by a channel data acquisition card and processed by a phase post-processing program; The data analysis module is used to perform control analysis on the digitally processed information and obtain the control strategy; it is also used to perform simulation optimization according to the control strategy to predict the specific deviation of the target light wave.

[0014] A photoelectric telescope photoelectric measurement device comprises a photoelectric measurement head, a signal processor and a memory. The photoelectric measurement head is used to measure the target photoelectric signal and transmit it to the signal processor; the memory stores a program that can be executed by the signal processor, and when the program is executed, a photoelectric measurement method for a photoelectric telescope is implemented.

[0015] Beneficial effects of the present invention: (1) The present invention matches the three-dimensional coordinates with the observation axis position of the photoelectric telescope, and arranges and lays out the photoelectric detectors around the photoelectric microscope according to the measurement position after matching and positioning, thereby improving the accuracy of the photoelectric detector layout. By using a single-frequency laser and a modulator to design interferometric measurement, the interference signal of the axis position of the target light source light wave is obtained, and high-precision measurement of the light wave is achieved by analyzing the interference fringes.

[0016] (2) Tracking and detecting the interference signal of the line of sight position through photoelectric detectors and encoders, converting the collected interference signal of the line of sight position into an electrical signal for further digital processing and control analysis, and conducting control analysis on the digitally processed information to determine whether it meets the preset standards, and obtaining the control strategy based on the analysis results; analyzing the effectiveness of the control strategy and maintaining the stability of the measurement, and performing simulation optimization based on the control strategy to predict the deviation of the target light wave; and predicting the performance of the control strategy through simulation to ensure the precision of tracking the target light wave.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the steps of a photoelectric measurement method for a photoelectric telescope according to the present invention; Figure 2 The figure is a schematic diagram of a photoelectric measurement system module of a photoelectric telescope of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] With the development of self-calibration technology, the provision of adaptive lens tracking technology can significantly reduce the measurement error of manually calibrated lenses and improve the accuracy of the measuring head. However, in the process of lens tracking, it is usually impossible to eliminate external information interference. For the changed target, calibration measurement needs to be performed again, which increases the resistance to accurate measurement of the target. It is also difficult to predict in advance the situation where the light wave signal will deviate significantly, and accurate photoelectric tracking measurement cannot be achieved.

[0022] To solve the above technical problems, please refer to Figure 1 As shown, the present invention is a photoelectric measurement method for a photoelectric telescope, the method comprising: S1. Matching a three-dimensional coordinate system according to the position information of the visual axis observed by the photoelectric telescope, and setting photoelectric detectors and encoders in multiple directions based on the three-dimensional coordinate system; S2. Setting a single-frequency laser and a modulator to perform interferometric measurement design to obtain an interferometric signal of the visual axis position of the target light source light wave; S3, tracking and detecting the visual axis position interference signal through a photoelectric detector and an encoder, and converting the visual axis position interference signal into an electrical signal, the visual axis position electrical signal is digitized by a channel data acquisition card and processed by a phase post-processing program; S4. Conduct control analysis on the digitally processed information to determine whether the control analysis results meet the requirements: If yes, continue the measurement; otherwise, pause the measurement and obtain the control strategy; S5. Perform simulation optimization according to the control strategy to predict the deviation of the target light wave.

[0023] In the above technical solution, the present invention realizes the efficiency and accuracy of the photoelectric telescope in astronomical measurement and daily use through the photoelectric measurement method of the photoelectric telescope, realizes the precise positioning measurement and prediction and judgment of the target information, and reduces the size of the position deviation. Specifically, it includes: First, the first step is to match the three-dimensional coordinate system according to the position information of the optical telescope's observation axis, and set photoelectric detectors and encoders in multiple directions based on its three-dimensional coordinate system; by positioning and matching the three-dimensional coordinates with the telescope's observation axis position, and arranging and laying out the photoelectric detectors around the photoelectric microscope according to the position measured after matching and positioning, the accuracy of the photoelectric detector layout is improved. Among them, the angle and number of detectors in actual use are specifically set according to the position and space where the current photoelectric microscope is placed, generally not less than two, so as to facilitate the detection and conversion of the light signal obtained from the target celestial body. According to the position information of the optical telescope's observation axis, an accurate coordinate match is established in the three-dimensional coordinate system, and the positioning and tracking of all-round light signals are achieved by setting photoelectric detectors and encoders in multiple directions.

[0024] Then, in the second step, a single-frequency laser and a modulator are set up to perform interference measurement design, and the interference signal of the visual axis position of the target light source light wave is obtained, so as to obtain high-precision information on the visual axis position of the target light source light wave. Specifically, the interference measurement is designed by using a single-frequency laser and a modulator to obtain the interference signal of the visual axis position of the target light source light wave, and the high-precision measurement of the light wave is achieved through the analysis of the interference fringes.

[0025] Then, in the third step, the optical axis position interference signal is tracked and detected by the photoelectric detector and the encoder, and the optical axis position interference signal is converted into an electrical signal. The optical axis position electrical signal is digitized by the channel data acquisition card and processed by the phase post-processing program; after obtaining the interference fringe information, the optical axis position interference signal is tracked and detected by the photoelectric detector and the encoder, the optical signal is converted into an electrical signal, and then digitized by the channel data acquisition card; because the photoelectric detector in the interference design method can be further used to obtain the optical axis position interference signal of the target light source light wave, and the optical axis position interference signal can be used to accurately calculate the position and movement of celestial bodies after conversion, the collected optical axis position interference signal is converted into an electrical signal for further digital processing, which is convenient for subsequent computer processing and analysis.

[0026] It needs to be explained that the line of sight position electrical signal is sent to the channel data acquisition card for A / D (analog to digital) conversion, converting the analog electrical signal into a digital signal, and the interference signal contains the phase information of the target position. The digitized signal is analyzed by a special phase post-processing program. The program analysis usually includes signal filtering, phase demodulation and data correction steps to remove noise and improve signal quality and accuracy; the signal is analyzed by the phase post-processing program to extract the phase information in the interference signal, which is the key data for the target position or motion state. The interference signal usually includes the target position, target shape or target motion information.

[0027] Furthermore, a judgment and analysis process is designed: control analysis is performed on the digitally processed information, and the control analysis results are judged according to the analysis results to see whether they meet the requirements: if so, the measurement continues; otherwise, the measurement is suspended and the control strategy is obtained; this step realizes the effectiveness analysis of the control strategy and the stability of the measurement, and the control analysis of the digitally processed information is performed to determine whether it meets the preset standards. If it meets the requirements, the system continues to measure; if it does not meet the requirements, the measurement is suspended and a new control strategy is obtained according to the analysis results; the control strategy here is a program for realizing the control of the telescope's photoelectric measurement, and the specific setting depends on the actual measurement deviation.

[0028] Finally, the fifth step is to perform simulation optimization based on the control strategy to predict the deviation of the target light wave; by predicting the performance of the control strategy through simulation, the tracking accuracy of the target light wave is ensured to be precise.

[0029] The specific simulation optimization process example is as follows: First, the control strategy obtained in the fourth step is applied to the simulation model. The control algorithm and its related parameter data are input into the simulation software to simulate the behavior of the telescope system under different conditions. Then, the simulation outputs the predicted trajectory and position of the target light wave under the control strategy. By analyzing the predicted trajectory and position changes, the deviation of the light wave can be predicted, and the degree of deviation from the preset path can be predicted, which helps to identify possible sources of errors in the measurement process. Then, based on the simulation results, the parts that need to be optimized are adjusted to ensure that the control strategy can achieve optimized performance. In addition, the actual operation includes fine-tuning the control parameters, improving the algorithm or adding new control logic to improve the stability and response speed of the system.

[0030] In addition to the above examples, the simulation model also includes: Performance evaluation: By comparing the simulation results before and after optimization, the improvement effect of the control strategy is evaluated, including the improvement of deviations, such as tracking accuracy, response time, and energy consumption. Iterative optimization: The optimization process also needs to be iterated repeatedly to gradually improve the effectiveness of the control strategy, and after each iteration, the simulation needs to be re-performed to verify the improvement effect of the strategy. Implementation and verification: The optimized control strategy will be applied to the actual optoelectronic telescope to verify the performance of the control strategy under real conditions. The above are all processes that need to be involved in the existing technical process of simulation, which will not be described in detail here.

[0031] As an implementation mode of the present invention, step S1 includes: Real-time acquisition of continuous observation line of sight position signals within a preset observation time period in the photoelectric telescope position area; The three-dimensional position information of the line of sight is obtained by matching the three-dimensional model to the three-dimensional coordinate system of the continuously observed line of sight position signal.

[0032] In the above technical scheme, the steps in this embodiment mainly include first, real-time acquisition of the continuous observation axis position signal within the preset observation time period of the photoelectric telescope position area; then, based on the three-dimensional model matching, the three-dimensional coordinate system of the continuous observation axis position signal is used to obtain the three-dimensional position information of the axis. By presetting the observation time point, it is ensured that the continuous changes of the observed target are captured in real time, which reflects the continuity of the data related to the observed target. Generally, it takes several hours or days of continuous observation and measurement in the actual observation process; and the photoelectric detector and encoder continuously track the axis position of the photoelectric telescope, and collect the axis position signal in real time, including the pointing information corresponding to the axis position, and the axis position change at the collected position signal and pointing information is digitized and processed in real time to ensure the matching of the collected photoelectric telescope position area and the three-dimensional coordinate system set therein; and this three-dimensional coordinate system now needs to obtain the influence of the earth's rotation, the position structure of the telescope and the dynamic change characteristics of the observed target, and is comprehensively selected.

[0033] In addition, after matching the three-dimensional coordinate system, it is necessary to input the three-dimensional model of the continuously observed visual axis position signal data to determine the precise position information of the current visual axis in the three-dimensional space, and the position matching involves three-dimensional transformation, least squares method and other existing advanced algorithms.

[0034] As an embodiment of the present invention, the steps of interferometric design in step S2 are: A single-frequency laser is used to obtain a target light source, and a modulator is set at a reference beam path to perform phase modulation on the reference beam; The modulated reference beam is combined with the signal beam reflected or transmitted from the target in an interferometer to obtain an interference pattern; The interferometer and its optical components are adjusted to ensure that the boresight of the target light wave is precisely aligned with the boresight of the reference beam.

[0035] In the above technical solution, in this embodiment, the precise measurement of the target celestial body is realized by interferometric measurement design, and the specific steps are as follows: a single-frequency laser is used to help lock the target light source, because the single-frequency laser can emit lasers of a specific frequency and provide a stable and single light source, which is conducive to accurately locking the light beam and obtaining a reference beam as a reference; and ensuring the accuracy of the subsequent phase modulation of the reference beam; then, the modulated reference beam is combined with the signal beam obtained by the visual axis reflection of the target light wave to obtain interference pattern information, wherein the beam merging is usually realized in an interferometer or other optical elements, and the interference pattern generation is the main source of information containing the position and motion of the target light source. By adjusting the optical elements in the interferometer, it is ensured that the interference effect is optimized by adjusting the position of the reflector, lens or beam splitter, so as to achieve precise alignment of the visual axis of the target light wave with the visual axis of the reference beam.

[0036] As an implementation mode of the present invention, step S3 includes: The photoelectric detector detects and obtains the change of the interference signal at the visual axis position within a preset observation time period. The analog electrical signal is converted into a frequency domain signal through Fourier transformation; The frequency domain signal is converted into a digital signal through a data acquisition card for data analysis and obtaining interference fringe change information; the interference fringe change information includes: fringe position change, fringe shape change and fringe motion change information; The phase change information in the interference signal is extracted through the signal processing technology of the phase post-processing program.

[0037] In the above technical scheme, in this embodiment, the interference signal at the visual axis position is monitored by a photoelectric detector for a continuous observation period to determine the phase and intensity changes of the target light source, and the optical signal of the interference signal detected and obtained is converted into an analog electrical signal, including the intensity and time change information of the interference signal, and the time domain signal is converted into the frequency domain through Fourier transform, and the frequency component of the current signal is analyzed to ensure the accuracy of the spectral information.

[0038] The frequency domain signal is converted into a digital signal through a data acquisition card for data analysis and obtaining interference fringe change information, which specifically involves A / D conversion of digital signals, and the obtained digitized interference fringe change information includes: fringe position change, fringe shape change and fringe motion change information; a photoelectric detector is used to detect the interference signal, and the detector should have high sensitivity and fast response time to accurately capture the change of interference fringes; the analog signal output by the photoelectric detector is converted into a digital signal, and the specific data of the interference fringes is recorded through a data acquisition system: the comprehensive change value is obtained based on the digitized information of fringe position change, fringe shape change and fringe motion change information as the interference fringe change difference. The phase information in the interference signal is extracted through data signal processing technology, such as lock-in amplification.

[0039] As an embodiment of the present invention, the control analysis method in step S4 is: By formula Calculate the coefficient of deviation ;in, is the preset function; is the difference of interference fringes change, is the phase change difference; The weight coefficient preset for the influence of the interference fringe change on the deviation coefficient value; A weight coefficient preset for the influence of the corresponding phase change on the deviation coefficient value; is the standard interference fringe variation difference, is the standard phase change difference; The difference deviation of the preset interference fringe change; is the preset phase change difference deviation; is the boresight azimuth position coefficient; is the number of whole cycles; is a non-integer period number.

[0040] In the above technical solution, the method for performing control analysis in this embodiment is to calculate the formula Get the coefficient of deviation , by analyzing the relevant changes of interference fringes and phase changes, the current target deviation is comprehensively judged, and the control strategy is generated according to the calculated deviation coefficient. Since there is a direct relationship between the change of interference fringes and the phase change, in existing optical interference experiments, when two or more coherent light waves meet in space, they will superimpose on each other. The formation of interference fringes is due to the increase (bright fringes) or decrease (dark fringes) of light intensity caused by the phase difference of the light waves. When the phase difference of the interfering light waves changes, the position of the interference fringes will also move accordingly. For example, if the phase difference between the two beams of light increases or decreases by one wavelength, the original bright fringes will move to the position of the dark fringes, and vice versa. Therefore, according to the calculated change size of the interference fringes and the phase change size, the target measurement deviation in the continuous observation process can be further reflected to facilitate the precise measurement process.

[0041] Among them, it is necessary to explain that , , standard value , standard value All are obtained based on historical experience, and the preset functions It is an adjustment function set according to historical data, and ensures that the deviation coefficient obtained by adjustment is within a specific reasonable range; , It is acquired and analyzed in real time based on the training network and stored in the database, and preset in advance based on the historical database; the position coefficient It is selected and set according to the data status of the information of multiple directions set around the visual axis of the telescope observation, and will not be described in detail here.

[0042] As an embodiment of the present invention, it also includes: The deviation coefficient The deviation coefficient threshold interval is To compare: like , then it is judged that the deviation of the current prediction target is within the normal range; like , it is judged that the deviation of the interference signal at the visual axis position is not within the normal range, and a control strategy is generated.

[0043] In the above technical solution, the specific analysis process of the control strategy generated by this embodiment is as follows: first, the deviation coefficient The deviation coefficient threshold interval is Compare the sizes, and then judge whether the deviation range of the current predicted target is normal based on the comparison results. If it deviates from the normal range, generate a control strategy. This control strategy is specifically set according to the current deviation size.

[0044] As an implementation mode of the present invention, step S5 includes: Inputting the historical standard deviation coefficient set obtained at different positions into the preset dynamic model to train the output control parameters and update the dynamic model; The control parameters and the deviation coefficients obtained in real time within a preset time period are input into the updated dynamic model for simulation, and the optimized control parameters are output to predict the deviation of the target light wave.

[0045] In the above technical scheme, the last step in this embodiment is to input the set of historical standard deviation coefficients obtained from different directions into the preset dynamic model for training, output the control parameters and update the dynamic model; and input the control parameters and the deviation coefficients within the preset time period obtained in real time into the updated dynamic model for simulation, and output the optimized control parameters to predict the deviation of the target light wave.

[0046] As an implementation mode of the present invention, specifically, the control parameter is obtained in the following manner: By formula Calculate the first Control parameters of each direction ;in, is a preset spatial mapping function used to transform the original data input space of the deviation coefficient into a new feature space; is the preset weight value of the deviation coefficient; For the Deviation coefficient of each orientation; is the standard deviation coefficient; Preset deviation value for the deviation factor.

[0047] In the above technical solution, the control parameters of the control strategy are obtained by calculating the formula Get the Control parameters of each direction , ensuring timely implementation of the simulation optimization process according to the generated control strategy, by calculating the deviation coefficient of the current position beyond the normal range Analyze through Determine the degree of deviation adjustment and preset weight values ​​for deviation coefficients based on historical experience data Limitation is performed to obtain the range deviation adjustment degree that conforms to the current data space, and the target space, that is, the real space adjustment value, is converted through the space mapping function.

[0048] The above design describes a training and optimization process of a dynamic model. Specifically, first, the historical standard deviation coefficients obtained from receiving positions in different azimuths are collected. These coefficients reflect the fluctuation of the target light wave under different conditions. These coefficients are used as input features and trained with the preset dynamic model. The preset dynamic model here is a model established based on the physical principles of telescope control in an existing database, and can also be a model pre-trained by associating the adjustment angle, azimuth, and distance of the telescope. The goal of data training is to output a set of control parameters for optimizing the dynamic model so that it can more accurately predict the deviation of the target light wave.

[0049] Then, based on the optimized control parameters, they are input into the updated dynamic model together with the deviation coefficient obtained in real time within the preset time period as the real-time input of the current model. Through the simulation process, the model will output a more accurate light wave deviation prediction based on the current input and optimized parameters; the output optimized control parameters can be used to adjust the system in real time to reduce the difference between the actual and predicted, thereby achieving effective control of the light wave deviation.

[0050] See also Figure 1 As shown, the present invention also provides a photoelectric telescope photoelectric measurement system, comprising: A position information acquisition module is used to match the three-dimensional coordinate system according to the position information of the optical telescope observing the visual axis, and to set the photoelectric detectors and encoders in multiple directions based on the three-dimensional coordinate system; Interference measurement module, used to set up single-frequency laser and modulator to perform interference measurement design and obtain the interferometric signal of the visual axis position of the target light source light wave; A signal processing module is used to track and detect the visual axis position interference signal through a photoelectric detector and an encoder, and convert the visual axis position interference signal into an electrical signal. The visual axis position electrical signal is digitized by a channel data acquisition card and processed by a phase post-processing program; The data analysis module is used to perform control analysis on the digitally processed information and obtain the control strategy; it is also used to perform simulation optimization according to the control strategy to predict the deviation of the target light wave.

[0051] The present invention also provides an optoelectronic telescope optoelectronic measurement device, comprising an optoelectronic measurement head, a signal processor and a memory. The optoelectronic measurement head is used to measure the target optoelectronic signal and transmit it to the signal processor; the memory stores a program that can be executed by the signal processor, and when the program is executed, an optoelectronic telescope optoelectronic measurement method is implemented.

[0052] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0053] The above specific embodiments of this specification are described. Other embodiments are within the scope of the attached documents. In some cases, the actions or steps recorded in this application can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0054] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in this application, they shall all fall within the protection scope of the present invention.

Claims

1. A photoelectric measurement method for a photoelectric telescope, characterized in that: The method comprises: S1. Matching a three-dimensional coordinate system according to the position information of the visual axis observed by the photoelectric telescope, and setting photoelectric detectors and encoders in multiple directions based on the three-dimensional coordinate system; S2. Setting a single-frequency laser and a modulator to perform interferometric measurement design to obtain an interferometric signal of the visual axis position of the target light source light wave; S3, tracking and detecting the visual axis position interference signal through a photoelectric detector and an encoder, and converting the visual axis position interference signal into an electrical signal, digitizing the visual axis position electrical signal through a channel data acquisition card, and processing the interference signal through a phase post-processing program; S4. Conduct control analysis on the digitally processed information to determine whether the control analysis results meet the requirements: If yes, continue the measurement; otherwise, pause the measurement and obtain the control strategy; The control analysis method in S4 is: By formula Calculate the coefficient of deviation ;in, is the preset function; is the difference of interference fringes change, is the phase change difference; The weight coefficient preset for the influence of the interference fringe change on the deviation coefficient value; A weight coefficient preset for the influence of the corresponding phase change on the deviation coefficient value; is the standard interference fringe variation difference, is the standard phase change difference; The difference deviation of the preset interference fringe change; is the preset phase change difference deviation; is the boresight azimuth position coefficient; is the number of whole cycles; is a non-integer period number; The deviation coefficient The deviation coefficient threshold interval is To compare: like , then it is judged that the deviation of the interference signal at the visual axis position is within the normal range; like , it is judged that the deviation of the interference signal at the visual axis position is not within the normal range, and a control strategy is generated; S5. Perform simulation optimization according to the control strategy to predict the deviation of the target light wave; The S5 includes: Inputting the historical standard deviation coefficient set obtained at different positions into the preset dynamic model to train the output control parameters and update the dynamic model; The control parameters and the deviation coefficients obtained in real time within a preset time period are input into the updated dynamic model for simulation, and the optimized control parameters are output to predict the deviation of the target light wave; The control parameters are obtained as follows: By formula Calculate the first Control parameters of each direction ;in, is a preset spatial mapping function used to transform the original data input space of the deviation coefficient into a new feature space; is the preset weight value of the deviation coefficient; For the Deviation coefficient of each orientation; is the standard deviation coefficient; Preset deviation value for the deviation factor.

2. The photoelectric measurement method of a photoelectric telescope according to claim 1, characterized in that: The S1 includes: Real-time acquisition of continuous observation line of sight position signals within a preset observation time period in the photoelectric telescope position area; The three-dimensional position information of the line of sight is obtained by matching the three-dimensional model to the three-dimensional coordinate system of the continuously observed line of sight position signal.

3. The photoelectric measurement method of a photoelectric telescope according to claim 2, characterized in that: The steps of interferometric design in S2 are: A single-frequency laser is used to obtain a target light source, and a modulator is set at a reference beam path to perform phase modulation on the reference beam; The modulated reference beam is combined with the signal beam reflected or transmitted from the target in an interferometer to obtain an interference pattern; Adjust the interferometer and its optical components to ensure that the boresight of the target light wave is aligned with the boresight of the reference beam.

4. The photoelectric measurement method of a photoelectric telescope according to claim 3, characterized in that: The S3 includes: The photoelectric detector detects and obtains the change of the interference signal at the visual axis position within a preset observation time period, and converts the analog electrical signal into a frequency domain signal through Fourier transformation; The frequency domain signal is converted into a digital signal by a data acquisition card for data analysis and obtaining interference fringe change information; the interference fringe change information includes: fringe position change, fringe shape change and fringe motion change information; The phase change information in the interference signal is extracted through the signal processing technology of the phase post-processing program.

5. An optoelectronic telescope optoelectronic measurement system, characterized in that: include: A position information acquisition module is used to match the three-dimensional coordinate system according to the position information of the optical telescope observing the visual axis, and to set the photoelectric detectors and encoders in multiple directions based on the three-dimensional coordinate system; Interference measurement module, used to set up single-frequency laser and modulator to perform interference measurement design and obtain the interferometric signal of the visual axis position of the target light source light wave; A signal processing module is used to track and detect the visual axis position interference signal through a photoelectric detector and an encoder, and convert the visual axis position interference signal into an electrical signal. The visual axis position electrical signal is digitized by a channel data acquisition card and processed by a phase post-processing program; The data analysis module is used to perform control analysis on the digitally processed information and obtain the control strategy; it is also used to perform simulation optimization according to the control strategy to predict the deviation of the target light wave.

6. A photoelectric telescope photoelectric measurement device, characterized in that: The invention comprises an optoelectronic measuring head, a signal processor and a memory, wherein the optoelectronic measuring head is used to measure the target optoelectronic signal and transmit it to the signal processor; the memory stores a program executable by the signal processor, wherein when the program is executed, an optoelectronic measurement method for an optoelectronic telescope as described in any one of claims 1 to 4 is implemented.

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