In this paper, a robust DWPT based adaptive bock algorithm with modified threshold for denoising the sounds of musical instruments is proposed. The signal is first segmented into multiple blocks depending upon the minimum mean square criteria in each

基于最大重叠离散小波谱的定义, 本文提出了一种确定分形信号局部奇异性指数的算法, 构造了一种 类似于奇异性谱的直方图, 并用之来描述信号奇异性的全局统计分布. 算法的有效性通过数字试验及在真实心率数据 中的应用得到了验证.-Based on the definition of wavelet spectrum of the maximal overlap discrete wavelet transform, we propose a novel algorithm for dete