三个复正弦信号的信噪比分别为SNR1 =30dB， SNR2 =30dB和SNR3 = 27dB。假设信号样本数为1000，FIR 滤波器的抽头个数为4。基于奇异值分解的MVDR 方法进行信号频率估计的仿真实验，获得功率谱密度函数的估计。,A power spectrum estimation algorithm named mvdr is introduced in this program

FIR数字滤波器的设计:用窗函数法，频率采样法及优化设计法设计FIR滤波器的原理及方法,用MATLAB编程实现FIR数字滤波器的设计-FIR digital filter design: using window function method, frequency sampling method and optimal design of FIR filter design method principles and methods, using MATLAB programming desi