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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
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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。Abstract: 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 wave-let 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.
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