线性滤波器与多项式级联结构的自适应均衡器

Structure of Linear filter Conjuncted Polynomial Adaptive Equalizer

针对严重的线性失真和适度的非线性失真的非线性信道,在Volterra非线性系统和非线性信道Wiener模型基础之上,研究了级联结构的自适应均衡器,并推导出自适应算法,对其进行仿真。仿真表明,此均衡器结构不但结构简单,而且能够非常有效地消除码间和非线性干扰,改善信号的误码性能。

After the analysis of Voherra nonlinear system and nonlinear channel Wiener modeling with severe linear and mild nonlinear distortion, conjunction＇ s structure equalizer was studied, and adaptive algorithm was deduced. Computer simulations showed that the new type structure equalizer not only has simpler structure and but also can availably remove nonlinear＇ s disturation and ISI, improve performance of BER.