基于子带分解的抗串扰自适应滤波器

Crosstalk resistant Adaptive Filters Based on the Subband Decomposition Method

应用子带分解技术，提出了一种新颖的自适应滤波器结构，它适用于存在串扰的场合。推导了用ＤＦＴ实现子带结构时的ＬＭＳ自适应算法，研究了算法应用于自适应噪声抵消时的收敛性能。模拟结果表明，与常规的ＣＴＲＡＮＣ相比，收敛速度有十分明显的改善。

A novel adaptive filtering structure in the presence of crosstalk is presented with the application of the subband decomposition technique.Least Mean Square (LMS) adaptive filte ring algorithm is derived for the proposed filter when the subband structure is implemented with the Discrete Fourier Transform (DFT).The convergence performence of the present algorithm is studied for the adaptive noise cancellation.Simulations show considerable improvement in a convergence speed compared to the standard crosstalk resistant adaptive noise canceller (CTRANC)