自适应光学波前实时处理机结构设计

本文介绍的波前处理机是１．２ｍ望远镜自适应光学系统的关键部件之一，吞吐率高，延时小，是具有高速数据处理能力的实时处理系统。为满足系统的高速度性能，系统设计在实时性、并发性的基础上，将图象数据采集加入流水线，并对波前处理中自然存在的子任务作“去相关”’处理，建立了图象采集、斜率计算、波前复原间流水线操作。图象读出时间的利用及流水线的建立，大大减少了时延，降低了系统实时性要求。流水线处理与高度并行处理相结合，也是本处理机设计的一大特色。

Architecture Design of the Adaptive Optics Wavefront Real-time Processor System

The optics wavefront processor system(OWPS) described in this paper is one of the key processors in 1. 2m telescope adaptive optics system(AOS). It is a highperformace system with high throughput rate and short delay. In order to meet the high speed requirement, the demanded real-time and concurrency in the main computation is first analyzed, then a decorrelation procedure for wavefront processing is proposed.Based on the several subtasks in wavefront computation,data acquisition,slope computation and wavefront reconstruction are conducted in pipeline. The delay is reduced greatly by the utilization of image aquisition time and the foundation of pepeline.