计算多重分形非趋势波动分析，FIR 底通和带通滤波器和IIR 底通和带通滤波器，滤波求和方式实现宽带波束形成。- Calculate the multifractal trend fluctuation analysis, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Filtering summation way broadband beamforming.