光学精密工程2017，Vol.25Issue(10)：2580-2583,4.DOI:10.3788/OPE.20172510.2580
基于FPGA的自适应光学波前处理算法
Adaptive optical wave-f ront processing algorithm based on FPGA
摘要
Abstract
A wave-front processing algorithm was proposed based on Field Programming Gate Array (FPGA ) for improving computational complexity and real-time ability of adaptive optical systems . The reuse of core processing module was used to calculate a wave-front slope ,and the decomposition of matrix and vector was used to calculate the wave-front restoration .Under the synchronization of pixel clock ,the whole wave front was processed and the momentum required by an actuator was giv-en .A piece of Virtex-4 LX80 FPGA was taken as a main chip to perform experimental verification , and the experiment results show that the algorithm reduces the hardware resources by 50％ ,and im-proves wave-front processing ability of the system .Furthermore ,all of the wave-front processing op-erations can be implemented in the current frame before the processing end ,w hich improves process-ing speeds and control bandwidths of the adaptive optic system .The new algorithm has carried on the correction experiment of the laser light source for a Shack-Hartmann in the room ,and it shows a high-er concentration ratio of light source .关键词
自适应光学/波前传感器/波前处理/现场可编程门阵列Key words
adaptive optics/wave-front processing/wavefron sensor/Field Programmable Gate Array (FPGA)分类
信息技术与安全科学引用本文复制引用
贾建禄,赵金宇,王建立,王帅,王亮,吴庆林..基于FPGA的自适应光学波前处理算法[J].光学精密工程,2017,25(10):2580-2583,4.基金项目
国家863高技术研究发展计划资助项目(No.2009AA8080603) （No.2009AA8080603）
