比较了软阈值，硬阈值及当今各种阈值计算方法,最大信噪比的独立分量分析算法，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块。- Comparison of soft threshold and hard threshold and today various threshold calculation method, SNR largest independent component analysis algorithm, PV modules contain, MPPT module, BOOST module, inverter module.