摘要
针对强噪声背景中语音信号提取的难度,提出一种基于Simulink和FDATool的改进型信号提取模型,该模型在传统自适应噪声消除器SIMULINK模型的基础上通过增加双带通数字滤波器实现。理论分析和仿真结果表明,该方法在强背景噪声中提取语音信号是可行的,且比没有改进时信号提取效果明显增强。
Concerning the detection of weak speech signal in stronger noise background, an effective modified model based on Simulink and FDATool is proposed. The model is composed of double bandpass digital filter and traditional adaptive noise canceler. Analysis and simulation results show that the algorithm can improves the noise canceller＇s performance greatly with good performance and low complexity.
出处
《噪声与振动控制》
CSCD
北大核心
2008年第4期145-148,共4页
Noise and Vibration Control
基金
国家自然科学基金(NO.50677014)
湖南省自然科学基金(06JJ2024)资助
