最大模数 meaning in Chinese

maximum modulus

The time - frequency of the wavelet transform and the signal wavelet decomposition - reconstruction algorithm based on the multi - resolution analysis are analyzed . the signal local singularity under the wavelet transform are studied . the difference between between mallat ' s maximun modulus algorithm and donoho ' s waveshrink algorithm are analyzed , too . the denoise effect of different threshold and threshold function are studied . base on compare the advantage and disadvantage of donoho & johnstone threshold and believing - region threshold , a modified algorithm is developed : combining threshold distinguishing and shield filter method
讨论了基于mallat理论最大模数方法以及基于donoho理论的阈值萎缩去噪方法的差别，研究比较了不同阈值规则与阈值函数对去噪效果的影响；在此基础上，结合统一阈值和置信区间阈值各自的优缺点，提出阈值判别和屏蔽滤波相结合的方法。