数值分析的EULER法，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度,包括单边带、双边带、载波抑制及四倍频。- EULER numerical analysis method, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation, Including single sideband, double sideband, suppres