用自相关法求使信号s均方预测误差为最小的预测系数 已知语音文件求出其LPC系数后，调用a_lsf_conversion.m函数求其对应的LSF 求连续20帧语音的16阶ISF轨迹图-Request by autocorrelation of the signal s mean square prediction error is minimized prediction coefficient Known voice file LPC coefficients obtained its cal

利用最小二乘算法实现对三维平面的拟合，预报误差法参数辨识-松弛的思想，鲁棒性好，性能优越。- Least-squares algorithm to fit a three-dimensional plane, Prediction Error Method for Parameter Identification- the idea of relaxation, Robustness, superior performance.