摘要
比较了采用MATLAB中randn函数产生的高斯白噪声,单周期PRBS信号以及多周期PRBS信号分别作输入信号时,相关法辨识房间声回授通道的效果.选用辨识效果较好的多周期PRBS信号作为输入信号,辨识实际房间的声回授通道特性,并研究影响房间声回授通道特性的因素.
We compared the measure results when using white noise which is produced by MATLAB randn function, one period PRBS, multiple periods PRBS as Correlation Methods input signal. Choose the signal which has better result to distinguish real acoustic echo channel characteristic and find the factors which affect it.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第3期569-572,共4页
Journal of Sichuan University(Natural Science Edition)
基金
国家自然科学基金(60472096)
关键词
声回授通道特性
相关法
PRBS信号
acoustic echo channel characteristic, Correlation Methods, Pseudo Random Binary Signals
