CN104777607A - Self-adaption optical control method based on mode decomposition - Google Patents
Self-adaption optical control method based on mode decomposition Download PDFInfo
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- CN104777607A CN104777607A CN201510202918.9A CN201510202918A CN104777607A CN 104777607 A CN104777607 A CN 104777607A CN 201510202918 A CN201510202918 A CN 201510202918A CN 104777607 A CN104777607 A CN 104777607A
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Abstract
The invention discloses a self-adaption optical control method based on mode decomposition. The method comprises a mode decomposition module and a driver voltage replacing module. The mode decomposition module carries out mode decomposition on wavefront obtained by a self-adaption optical wavefront sensor, corresponding voltage data are generated, the driver voltage replacing module replaces output abnormal voltage data, and final voltage data are output. The control method has a good control effect under the conditions of driver voltage protection and light lack of part of subapertures of the self-adaption optical wavefront sensor.
Description
Technical field
The present invention relates to a kind of adaptive optics control method, particularly a kind of adaptive optics control method based on Mode Decomposition.
Background technology
Adaptive optics control method is the key that adaptive optics realizes high precision wavefront and controls, and is all a popular topic to the research of adaptive optics control method all the time.Mainly concentrate in the research of adaptive optics control method at present: conventional direct slope method, mode control method, forecast Control Algorithm etc., each control method correspond to a kind of control scene, the present invention is absorbed under parton aperture lacks optical condition, and the adaptive optics of peripheral driver that Wavefront sensor cannot detect controls.
Control under ADAPTIVE OPTICS SYSTEMS lacks optical mode, general it is considered that mode control method, because this control method can tolerate that parton aperture lacks light, but the problem brought is the loss of calibration capability.
Domestic and international colleague for the solution of above-mentioned contradiction is: adopt the method for local average, and namely for the uncontrollable driver because of scarce light, the sampling adjacent driving device voltage method be averaged of suing for peace is replaced, or by its zero setting;
Although these ways can solve scarce optical issue to a certain extent, but, certainly closed-loop control effect must decline, this is because: on the one hand, the method of local average is adopted only to reference to actuator voltage around, and lack the reason of light and must cause driver around also error is comparatively large, the average voltage error calculating acquisition thus is also larger; On the other hand, all cannot the situation of reference can not solve further for around actuator voltage.Its error of voltage zero setting will be larger.
Summary of the invention
Technology of the present invention is dealt with problems and is: for the problems referred to above difficulty and contradiction, provide a kind of high-precision adaptive optics control method.This method Land use models method controls portion driver voltage, can keep the high-precision closed loop of other drivers, simultaneously can the stability of acquisition model closed loop and precision.
Based on the adaptive optics control method of Mode Decomposition, be made up of Mode Decomposition module 1 and actuator voltage replacement module 2.The principle of work of the method is: Mode Decomposition module 1 carries out Mode Decomposition to the wavefront distributed data exported from adaptive optics Wavefront sensor, and decomposable process adopts least square solving method, asks for the coefficient A of each rank pattern
i, i=1 ~ N, N are pattern exponent number, N be greater than 0 positive integer; Then, distorting lens actuator voltage
m be driver sum, M be greater than 0 positive integer, k is the exponent number of employing pattern, F
kfor the voltage's distribiuting that kth rank pattern is corresponding, V
jfor a jth actuator voltage exports.Actuator voltage replacement module 2 judges each driver control voltage V
jvoltage under conventional control methods exports the need of replacement, criterion is: threshold method (namely calculates adjacent driving device average voltage around, if this actuator voltage absolute value is greater than 3 times of mean value, then think that this driver needs to replace), or, specify in advance (artificial this driver of specifying must carry out replacement process), then mode voltage replacement is carried out to the voltage data chosen.
Described Mode Decomposition method is Zernike Mode Decomposition or Deformable mirrors eigen modes formula.
Described each rank mode voltage distribution, adopt desired deflection mirror influence function or actual measurement influence function, asked for by the method for least square, specifically asking for process can be described below: F
j(n)=(IFs)
-1* W
i, j=1 ~ N, n=1 ~ M wherein, F
jn () is the voltage's distribiuting of jth rank pattern, n is distorting lens driver label, IFs is that (image being K*L by size becomes one dimension for the matrix of distorting lens M influence function image distribution composition, length is the data of K*L, again the influence function image of M one dimension is formed a large matrix, behavior M, is classified as K*L), ()
-1for group inverse matrices, W
jfor the one dimensional image of jth pattern distributes (image being K*L by size becomes the one-dimensional data that line length is K*L).
Voltage under described conventional control methods exports and refers to the voltage utilizing direct slope method to obtain.
Principle of the present invention is:
A, after the distribution of acquisition Wavefront sensor wavefront, adaptive optics can be undertaken closed-loop corrected by mode control method, but comparatively direct slope method is poor for closed-loop corrected effect;
B, for same input wave front data, under the enough conditions of pattern exponent number of type method, type method should have consistent solving result with other control methods (as direct slope method), when pattern exponent number is less, type method by the calibration capability of loss to higher order aberratons, but obtains the continuity on better stability and control corrugated;
The Volume control of c, Land use models method, the control for scarce light region driver adopts type method, and other regions adopt the high-accuracy control methods such as direct slope method, guarantee the complete correction before to whole incoming wave, thus obtain high-precision wavefront control effects.
The present invention compared with prior art has the following advantages:
(1) the present invention adopts type method to control scarce light region driver, is the control method that a kind of overall situation solves local driver voltage, can reduce tradition local and solve local driver error that voltage brings, improve stability simultaneously;
(2) the present invention solves scarce light region actuator voltage process and direct slope method etc. to solve voltage course is separate, multi-core DSP or CPU can be utilized to carry out parallel processing, therefore can not cause extra time overhead;
(3) the present invention can control peripheral driver or center bore driver, under normal circumstances, these drivers may cannot obtain control information because of input beam bore and central obscuration, increase the calibration result that can improve adaptive optics to the control of above-mentioned driver further.
Accompanying drawing explanation
Fig. 1 is the adaptive optics control method based on Mode Decomposition;
Fig. 2 is the adaptive optics control method closed-loop control effect based on Mode Decomposition;
Fig. 3 is for take zero setting control effects to no light zone area deformation mirror driver;
Fig. 4 method flow block diagram of the present invention.
Embodiment
As shown in Figure 1, for a set of 265 unit self-adapting optical systems, and the Mode Decomposition method on 21 rank is adopted.Mode Decomposition module 2 carries out Mode Decomposition to the wavefront distributed data exported from adaptive optics Wavefront sensor 1, asks for the coefficient A of each rank pattern
i, i=1 ~ 21; Then the voltage of distorting lens driver under pattern output condition is obtained by following formula
f
ibe voltage's distribiuting corresponding to the i-th rank pattern, V
jfor a jth actuator voltage exports, utilize direct slope method to obtain distorting lens control voltage V simultaneously
zj, j=1 ~ 265.Actuator voltage replacement module 2 calculates adjacent driving device average voltage around, and judges each driver control voltage V
jwhether absolute value of voltage is greater than 3 times of mean value absolute value, if it is Land use models voltage V
jreplace and utilize direct slope method to calculate the voltage V obtained
zj, finally, revised voltage is sent to high-voltage amplifier 4, controls wave-front corrector 5 and correct input wavefront error.Fig. 4 gives method flow block diagram of the present invention.
Fig. 2 and Fig. 3 sets forth the closed loop effect of the adaptive optics control method whether adopted based on Mode Decomposition, can see, after have employed mode control method, the energy that far field closed loop hot spot does not more adopt is more concentrated.
Claims (4)
1., based on an adaptive optics control method for Mode Decomposition, comprise Mode Decomposition module (1) and actuator voltage replacement module (2), it is characterized in that:
First carry out Mode Decomposition by Mode Decomposition module (1) to the wavefront distributed data exported from adaptive optics Wavefront sensor, decomposable process adopts least square solving method, asks for the coefficient A of each rank pattern
i, i=1 ~ N, N are pattern exponent number, N be greater than 0 positive integer; Then, distorting lens actuator voltage
j=1 ~ M, M be driver sum, M be greater than 0 positive integer, F
ibe voltage's distribiuting corresponding under the i-th rank pattern, V
jfor a jth actuator voltage exports;
Then actuator voltage replacement module (2) judges each driver control voltage V
jvoltage under conventional control methods exports the need of replacement, criterion is: threshold method, namely adjacent driving device average voltage is around calculated, if this actuator voltage absolute value is greater than 3 times of mean value absolute value, then think that this driver needs to replace, or, specify this driver must carry out replacement process in advance, then mode voltage replacement is carried out to the voltage data chosen.
2. a kind of adaptive optics control method based on Mode Decomposition according to claim 1, is characterized in that: the method for described Mode Decomposition is Zernike Mode Decomposition or Deformable mirrors eigen modes formula.
3. a kind of adaptive optics control method based on Mode Decomposition according to claim 1, it is characterized in that: described each rank mode voltage distribution, adopt desired deflection mirror influence function or actual measurement influence function, asked for by the method for least square, specifically asking for process can be described below: F
j(n)=(IFs)
-1* W
i, j=1 ~ N, n=1 ~ M wherein, F
jn () is the voltage's distribiuting of jth rank pattern, n is distorting lens driver label, IFs is the matrix of M distorting lens influence function view data composition, the influence function view data being K*L by size becomes one dimension, length is the data of K*L, again the one dimension influence function data after M above-mentioned conversion are formed a large matrix, the behavior M of this matrix, is classified as K*L; ()
-1for group inverse matrices sign of operation, W
jfor the one dimensional image of jth pattern distributes, the image being K*L by size becomes the one-dimensional data that line length is K*L.
4. a kind of adaptive optics control method based on Mode Decomposition according to claim 1, is characterized in that: the voltage under conventional control methods exports and refers to the voltage utilizing direct slope method to obtain.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728317A (en) * | 2017-11-13 | 2018-02-23 | 中国科学院光电技术研究所 | A kind of universal process method of adaptive optics system partial failure failure |
| CN110441927A (en) * | 2019-07-25 | 2019-11-12 | 中国科学院光电技术研究所 | A kind of automatic open closed loop decision-making technique of adaptive optics system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060022115A1 (en) * | 2004-07-29 | 2006-02-02 | Byren Robert W | Beam control system with extended beacon and method |
| CN103293663A (en) * | 2013-06-12 | 2013-09-11 | 中国科学院光电技术研究所 | Self-adaptive optical system based on voltage decoupling controlled multiple wave-front correctors |
| CN103901617A (en) * | 2014-04-17 | 2014-07-02 | 淮海工学院 | Wavefront detection-free adaptive optical system based on model |
-
2015
- 2015-04-27 CN CN201510202918.9A patent/CN104777607B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060022115A1 (en) * | 2004-07-29 | 2006-02-02 | Byren Robert W | Beam control system with extended beacon and method |
| CN103293663A (en) * | 2013-06-12 | 2013-09-11 | 中国科学院光电技术研究所 | Self-adaptive optical system based on voltage decoupling controlled multiple wave-front correctors |
| CN103901617A (en) * | 2014-04-17 | 2014-07-02 | 淮海工学院 | Wavefront detection-free adaptive optical system based on model |
Non-Patent Citations (2)
| Title |
|---|
| 严海星 等: ""自适应光学系统的模式法数值模拟"", 《光学学报》 * |
| 李新阳 等: ""直接斜率波前控制算法的模式校正效果分析"", 《光学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728317A (en) * | 2017-11-13 | 2018-02-23 | 中国科学院光电技术研究所 | A kind of universal process method of adaptive optics system partial failure failure |
| CN110441927A (en) * | 2019-07-25 | 2019-11-12 | 中国科学院光电技术研究所 | A kind of automatic open closed loop decision-making technique of adaptive optics system |
| CN110441927B (en) * | 2019-07-25 | 2020-10-13 | 中国科学院光电技术研究所 | Automatic open/close loop decision method for adaptive optical system |
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