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总体最小二乘算法在自适应信道均衡中的应用研究
引用本文:李晓波,顾德志,梁国栋,沈海军.总体最小二乘算法在自适应信道均衡中的应用研究[J].飞机设计,2014(2):39-43.
作者姓名:李晓波  顾德志  梁国栋  沈海军
作者单位:[1]中国人民解放军驻沈阳飞机工业(集团)有限公司军事代表室,辽宁沈阳110850 [2]不详,辽宁沈阳110850
摘    要:分析了最小二乘解产生偏差的原因,推导出了最小二乘解偏差项的数学表达式。提出了一种基于瑞利商的变步长总体最小二乘求解方法。仿真试验表明,总体最小二乘算法的性能优于加权递归最小二乘算法,是一种适用于输入信号端含有噪声的自适应信道均衡算法。

关 键 词:总体最小二乘  自适应均衡  瑞利商  变步长

Research on Total Least Square in Adaptive Channel Equalization
Institution:LI Xiao-bo, GU De-zhi, LIANG Guo-dong ( PLA Military Representative Office in Shenyang Aircraft Industries (group) Co. Ltd., Shenyang 110850, China )
Abstract:The error reason of least square(LS) solution is analysed. The biased mathematical expression of least square(LS) solution is derived on deep analysis. A varariable setp-size total least square(TLS) algorithm based on Rayleigh quotient is developed. The simulate results in channel models illustrate that the performance of the proposed algorithm is better than that of recursive least square while the input signals are disturbed by an additive white Gaussian noise.
Keywords:total least square  adaptive equalization  Rayleigh quotient  varariable setp-size
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