中文说明：比较了软阈值，硬阈值及当今各种阈值计算方法,雅克比迭代求解线性方程组课设,信号维数的估计，随机调制信号下的模拟ppm，有均匀线阵的CRB曲线，使用拉亚普诺夫指数的公式。
English Description：
Compare soft threshold, thresholds and threshold calculation methods nowadays, Jacques set than the iterative solution of linear systems of equations, estimation of signal dimensions, random modulation signal simulation of ppm, CRB curve of uniform linear array, use the layapunuofu index formula.