中文说明：
这个算法是基于峭度的快速不动点算法，混合方式是线性瞬时混合，适定情况，该算法收敛速度较梯度算法快，很实用。
English Description：
This algorithm is a fast fixed point algorithm based on kurtosis. The mixing mode is linear instantaneous mixing, and the convergence speed of this algorithm is faster than that of the gradient algorithm, so it is very practical.