为了提高自适应光学系统科研人员的工作效率, 满足自适应光学系统向高低阶多波前校正器的发展需求, 本文研究了一套自适应光学系统控制软件设计方法, 以适应实验设备的不断更新换代, 避免实验过程中软件不断更新修改所带来的问题。本文首先从功能和性能两方面分析了实验对软件系统的需求, 提出基础层、功能层及表示层3层的软件架构体系, 采用共享内存和临界区对象相结合的软件开发方法, 确保自适应光学系统的实时性与准确性, 避免资源冲突和浪费; 采用Windows API事件实现多线程之间同步协调控制。基于上述思想开发了液晶-变形镜混合的高低阶自适应光学系统控制软件, 可在0.6 ms内完成波前采集、波前计算、控制信号计算和各设备间的同步协调控制。最后, 使用该软件进行自适应光学校正: 仅变形镜和倾斜镜校正后峰峰值由3.38 μm降为0.95 μm, 均方根误差由0.66 μm降为0.12 μm; 液晶校正器、变形镜和倾斜镜同时校正后峰峰值为0.44 μm, 均方根误差为0.02 μm, 计算总延迟为0.378 ms。由实验结果可知, 本文设计的软件可以实现自适应光学系统的实时校正, 在保证校正精度的同时具有方便修改、功能齐全及模块化的优势, 为后续自适应光学实验提供保障。

In order to improve the working efficiency of adaptive optical system researchers and meet the development needs of adaptive optics systems to woofer-tweeter multi-wave front correctors, a design method of adaptive optical system control software with convenient modification, full-functions and modularization was studied to adapt to the continuous updating and replacement of the laboratory equipment and avoid the problems caused by constantly updating and modification of the software during the experiment. In this paper the experimental software system requirements were analyzed from two aspects of function and performance, and a software architecture system of three layers was proposed: basic layer, functional layer and presentation layer. The shared memory and Critical Section Object were used to ensure the Real-time performance and accuracy of the adaptive optical system, and avoid the conflict and waste of resources. The Windows API Event was used to realize the synchronous coordination control of each thread. Based on the above ideas, a liquid crystal-deformation mirror multi-wave front correctors adaptive optical system control software was developed to test the feasibility, and the wave front information could be acquired and processed in 0.6 milliseconds. Finally, the adaptive optical correction was carried out with this software, the peak-valley value of wave front was reduced from 3.38 μm to 0.95 μm, and the root mean square of wave front was reduced from 0.66 μm to 0.12 μm with tip-tilt mirror and deformable mirror. The peak-valley value of wave front was 0.44 μm; the root mean square of wave front was 0.02 μm with tip-tilt mirror deformable mirror and liquid crystal corrector, the total delay time was 0.378 ms. The results show that the new control software can complete the woofer-tweeter wave front correction experiment with multi-wave front correctors, and at the same time, it has the advantages of convenient modification, complete function and modularization, it can meet the expected experimental requirements.