星间光通信系统中多样化波前畸变的小波重构  

Reconstruction of diverse wavefront aberration in inter-satellite communication systems via wavelet methods

作　　者：刘同舜[1] 谢宛青[2] 朱进[1] 

机构地区：[1]中国科学技术大学自动化系,合肥230027 [2]中国科学技术大学信息科学技术学院,合肥230027

出　　处：《强激光与粒子束》2014年第10期121-125,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(61374073);中央高校基本科研业务费专项资金项目(WK2100000003);安徽省自然科学基金项目(1308085QF107)

摘　　要：用小波变换方法对星间光通信中的多样化波前畸变进行重构,并分析了小波重构方法的两项参考指标:重构精度和重构算法复杂度。基于对这两项指标的综合考虑,提出一种最优小波基函数的选取方法。仿真数据表明,利用最优小波基函数选取方法对波前畸变进行重构,较之传统的Zernike多项式拟合方法,具有重构精度高且计算量小的特点。In this paper, wavelet methods are used to reconstruct diverse aberration in inter-satellite communication system where two reconstruction indicators are considered： reconstruction accuracy and complexity. A selection method of optimal wavelet basis is given based on the synthesized analysis of these two indicators. Simulation results show that for the reconstruction of wavefront aberration, wavelet selected by the proposed method has higher accuracy and lower complexity than the traditional method by Zernike polynomials.

关 键 词：星间光通信 多样化波前畸变 小波方法 泽尼克多项式 

分 类 号：TN929.13[电子电信—通信与信息系统]