Pulsation array processing circuit for adaptive optical system wavefront control operation

An adaptive optics and control operation technology, applied in complex mathematical operations, optics, optical components, etc., can solve the problems of difficult large-scale integration, low device integration, large calculation delay, etc., to achieve easy hardware implementation, Simple structure and good real-time effect

Inactive Publication Date: 2007-11-07
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Since each piece of DSP requires a large number of control circuits, the integration of the device is not high, and it is not easy to be integrated on a large scale; and this method is basically a calculation performed by software, so there is a limit on hi

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  • Pulsation array processing circuit for adaptive optical system wavefront control operation
  • Pulsation array processing circuit for adaptive optical system wavefront control operation
  • Pulsation array processing circuit for adaptive optical system wavefront control operation

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[0038] Hereinafter, this embodiment will be described in detail with reference to FIGS. 1 to 3.

[0039] As shown in Figure 1, the present invention consists of 7 multiplication and accumulation processing units PE 1 -PE 7 , An addition processing unit PE 8 , 12 shift registers with a depth of n / 2 (if n is odd, the depth is (n+1) / 2) (M 1 -M 12 )composition. Processing unit PE 1 -PE 4 And shift register M 1 -M 6 , Processing unit PE 1 -PE 8 And shift register M 7 -M 12 They are arranged in two linear array structures respectively. The ports between the processing units are interconnected through shift registers. The pin MUL_out of the processing unit on the left is connected to the data input port of the shift register, and the data output port of the shift register is connected to the right The pin MUL_in of the processing unit; the pin MAD_in of the processing unit on the left is connected to the data output port of the shift register, and the data input port of the shift registe...

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Abstract

The invention relates to a pulsating array processing circuit for implementing wavefront control operation of a self-adapting optical system, arranging multiple processing elements into two linear structures to respectively complete convolution and recursion operations and using an addition processing element to link the two arrays together to implement the wavefront control operation; and n voltages are serially calculated in time-division multiplexing mode in an array, and the processing elements implement data transfer between adjacent elements by shift registers, avoiding memory read-write operation. And the arrays of the invention have features of data communication localization, and simple data and control streams, saving resources and convenient to implement with hardware.

Description

technical field [0001] The invention relates to a pulsation array processing circuit, in particular to a wave front control operation suitable for a wave front processor of an adaptive optical system. Background technique [0002] In the adaptive optics system, in order to effectively correct the dynamic wavefront error caused by atmospheric turbulence, the computing power and real-time performance of the wavefront processor are very high. The general-purpose microcomputer can no longer meet the requirements, and a special high-speed wavefront processor must be developed according to the characteristics of the wavefront processing of the adaptive optics system. The workflow of the wavefront processor includes five modules: image processing, slope calculation, wavefront restoration, control operation and D / A conversion. Among them, the wavefront control operation is the wavefront error vector E output from the restoration operation module, which is controlled and iterated Ca...

Claims

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Application Information

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IPC IPC(8): G02B26/08G06F17/10
Inventor 郑文佳王春鸿姜文汉李梅唐端午
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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