Modulus maxima of the detail signal after lifting in every operation cycle is extracted, and the position and time while weak signal singularity occurs are found.
Modulus maxima of the detail signal after lifting in every operation cycle is extracted, and the position and time while weak signal singularity occurs are found.
提取提升后小波分解的高频细节信号在每个信号工作周期中的模极大值，来确定信号发生微弱突变的时刻和位置。