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。
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.
出处
《飞机设计》
2014年第2期39-43,共5页
Aircraft Design
关键词
总体最小二乘
自适应均衡
瑞利商
变步长
total least square
adaptive equalization
Rayleigh quotient
varariable setp-size
