包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度,滤波求和方式实现宽带波束形成，复化三点Gauss-lengend公式求pi。- Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation, Filtering summation way broadband beamforming, Complex of three-point Gauss-l