多抽样率信号处理，重要参数的提取，包括广义互相关函数GCC时延估计，用于特征降维，特征融合，相关分析等,在matlab R2009b调试通过。- Multirate signal processing, Extract important parameters, Including the generalized cross-correlation function GCC time delay estimation, For feature reduction, feature fusion, correlation analysis, In matlab R2009b debugging through.