利用小波分析对第一、二种类型间断点检测。第一例中信号的不连续是由于低频特征的正弦信号在后半部分突然有高频特征的正弦信号加入。利用小波分析进行分析，检测信号幅值变换的位置，即高频特征正弦信号加入的时间。第二例中信号是有两个独立的满足指数方程的信号在t=500处连接起来的。因此信号看上去是光滑的，但信号具有一阶微分，且一阶微分有间断点。第三例是一位小波信号降噪。-Wavelet analysis of the first two types of discontinuous point detection. The signal of the first embodiment is not continuous due to low frequency sinusoidal signal characteristics in the second half of the sudden high-frequency characteristics of a sinusoidal signal added. Using wavelet analysis, the detection signal amplitude change of position, that high-frequency characteristics of a sinusoidal signal added time. The second case is a signal there are two separate signals at an exponential equation connected at t = 500 together. So the signal appears to be smooth, but the signal having a first derivative and the first derivative has discontinuities. The third case is a wavelet signal noise.