amplify and farward : code in mtalab that produce figures of BER and SNR for amplify and farxard relay

最大信噪比的独立分量分析算法，采用波束成形技术的BER计算，比较了软阈值，硬阈值及当今各种阈值计算方法。- SNR largest independent component analysis algorithm, By applying the beam forming technology of BER Comparison of soft threshold and hard threshold and today various threshold calculation method.