摘要
自适应相干累积器（ACI）在检测和跟踪方面明显优于自适应线谱增强器（ALE），存在的问题是稳态失调较大．本文提出一种后置平滑的自适应相干累积算法（PS-ACI）能明显而有效地降低ACI的稳态失调误差。这是通过在常规的自适应环外，暗加一个权系数序列的平滑滤波器，从而获得较好的稳态性能，其代价只是增加了部分运算量，用现代高速VLSI器件实时实现并不困难。计算机仿真结果证实了理论分析的正确性。
Adaptive Coherent Integrator (ACT) is obviously superior to Adaptive Line Enhener (ALE)both in detecting and tracking applications. However ,the steady-state misadjustment of ACI is largr than that of ALE.In this paper, a Postsmoothing Altorithm for Adaplive coherent integrator (PS-ACI) is proposed to reduce the steady-state misadjustment of ACI, This is reached by introducing a weitht smoothing filter outside the adaptive loop. Computer simulations is presented and shown that PS-ACI is better than ACI.
出处
《信号处理》
CSCD
北大核心
1996年第1期57-62,共6页
Journal of Signal Processing
