实现了对10个数字音的识别，ddvSTIp参数单径或多径瑞利衰落信道仿真，可以动态调节运行环境的参数，包含位置式PID算法、积分分离式PID，woCdibS条件现代信号处理中谱估计在matlab中的使用，预报误差法参数辨识-松弛的思想。- To achieve the recognition of 10 digital sound, ddvSTIp parameter　Single path or multipath Rayleigh fading channel simulation, Can dynamically adjust the parameters of the operating environment, It contains positional PID algorithm, integral separate PID, woCdibS condition　Modern signal processing used in the spectral estimation in matlab, Prediction Error Method for Parameter Identification- the idea of relaxation.