Open AccessModified effective bandwidths of adaptive optical control systems for compensation in Kolmogorov turbulence
Author(s) -
Youming Guo,
Xiaoyu Ma,
Changhui Rao
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.134207
Subject(s) - residual , bandwidth (computing) , spectral density , control theory (sociology) , computer science , compensation (psychology) , turbulence , tracking error , physics , algorithm , telecommunications , control (management) , psychology , artificial intelligence , psychoanalysis , thermodynamics
Based on the time serial signal generated by power spectrum density inversion, the closed-loop compensation residual variances of tracking loop and high-order error correction loop with finite error rejection -3 dB bandwidth and time delay are simulated. The data fitting results of relationships between residual variances and corresponding error rejection -3 dB bandwidths are obtained. The system effective bandwidths are modified so as to make the estimate of residual variances more precise.