％ Image_Filt Performs linear and nonlinear spatial filtering. ％ F = Image_Filt(G, TYPE, M, N, PARAMETER) performs spatial filtering ％ of image G using a TYPE filter of size M-by-N. Valid calls to ％ Image_Filt are as follows:

The subject of this book covers three different specific academic areas: Nonlinear systems, adaptive filtering and system identification.

webrtc 的回声抵消(aec、aecm)算法主要包括以下几个重要模块：1.回声时延估计 2.NLMS(归一化最小均方自适应算法) 3.NLP（非线性滤波） 4.CNG(舒适噪声产生），一般经典aec算法还应包括双端检测(DT)。考虑到webrtc使用的NLMS、NLP和CNG都属于经典算法范畴，故只做简略介绍，本文重点介绍webrtc的回声时延估计算法,这也是webrtc回声抵消算法区别一般算法(如视频会议中的算法)比较有特色的地方。-webrtc echo canceller (aec,