The channel estimation algorithm is based on a subspace approach. The method works only for identifiable STBCs (excluding >=1-rate STBCs). See publication [1] for more detail about the algorithm and the identifiability conditions. The zip file con

设计Chebyshev I型滤波器 [b,a]=zp2tf(z,p,k) 转换为传递函数形式 [H,w]=freqs(b,a,n) 求得传递函数的频率特性 magH2=(abs(H)).^2 求得传递函数的幅频响应-matlab code