有PMUSIC 校正前和校正后的比较，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度,BP神经网络用于函数拟合与模式识别。- A relatively before correction and after correction PMUSIC, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation, BP neural network