【作者】 王琪； 徐峰； 俞承芳； 李旦；

【Author】 Wang Qi Xu Feng Yu Chengfang Li Dan (Department of Electronic Engineering,Fudan Univ.,Shanghai 200433,China)

【机构】 复旦大学电子工程系；

【摘要】 本文将一种新的子带自适应滤波(SAF)算法引入麦克风阵列的广义旁瓣相消器,与传统的全带最小均方误差(LMS) 结构算法相比,可在提高收敛速度的同时,获得更好的语音增强效果。对实录语音信号的软件仿真实验表明,尤其当噪声为有色噪声时,该子带广义旁瓣相消结构具有很强的优越性。更多还原

【Abstract】 To improve the performance of Generalized Sidelobe Canceller(GSC)of microphone array,a newly proposed subband adaptive filtering(SAF)algorithm was combined into the GSC structure.It can im- prove the convergence as well as the speech enhancement effects,especially when the noise signals are col- ored.The efficacy was examined and validated via software simulations of real speeches.更多还原