卫星激光通信端机远场分布测试分析及测试系统设计  

Analysis of the far field distribution measurement of the terminals of free space laser communication and de of the measuring system design

作　　者：王建民[1] 王丽丽[1] 徐泉[1] 秦谊[1] 

机构地区：[1]北京大学电子学系量子信息与测量教育部重点实验室,北京100871

出　　处：《光电子．激光》2008年第11期1467-1473,共7页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(60377028);航天科技集团CAST创新基金资助项目(CAST2006636)

摘　　要：卫星激光通信端机出射光束远场分布测试是通信端机性能评估的重要内容。本文从工程应用的角度,讨论了如何设计一套通信端机远场分布测试系统。对于测量方案中最为关键的透镜焦面确定问题,提出采用基于SPSMD算子的图像处理方法,这种方法具有调整方便、精度高优点。实验结果表明,在光束孔径为100mm的情况下,所得到的光斑各个暗环位置与其理想位置的误差小于5%。The far field distribution measurement of the terminals in free space laser communication is an important content of performance evaluation for a communication terminals. It is described how to design a practical far field distribution measuring sysem. For the problem of focal plane determination,a new method is proposed,based on SPSMD image processing operator. This method has the merits of operation convenience and high accuracy. The experimental results indicate that the maximum dusky ring dimension error comparing with the theoretical values is less than 5% when the optical aperture is 100 mm.

关 键 词：卫星激光通信 远场分布 点光源 CCD 

分 类 号：TN929.1[电子电信—通信与信息系统]