Hann,Hamming,Blackman-Harris加窗波束形成方法的波束方向图比较。-Comparing of Hann,Hamming,Blackman-Harris weighting beamforming.

Design a linear phase minimum order FIR Band Stop filter to stop the frequency band 0.45π to 0.55π with atleast 60dB attenuation at the edges. Further -3dB frequencies are required to be at 0.3π and 0.7π. 1. Plot the frequency response of the psue

能够实现信号加汉宁窗，可以很好地克服频谱泄露(The signal Gahanning window is able to overcome spectrum leakage.)