中文说明：esprit算法对有干扰的信号频率进行估计,利用最小二乘法进行拟合多元非线性方程，复化三点Gauss-lengend公式求pi，有信道编码，调制，信道估计等，实现了对10个数字音的识别，鲁棒性好，性能优越。
English Description：
ESPRIT algorithm of interference signal frequency were estimated using least squares fitting multivariate nonlinear equations, complex three Gauss-lengend formula for PI, channel coding, modulation, channel estimation, to realize the identification of 10 digital sound and good robustness, superior performance.