【摘要】 研究了有限长信号通过正交紧支集小波滤波器组时 ,信号的延拓与滤波器组输出数据个数的关系 ,给出了在滤波器组中滤波器长度不同的条件下 ,有限长信号的延拓方法及可完全重构的范围 ,证明了滤波器组输出数据的个数等于输入信号长度的条件 .更多还原

【Abstract】 The relationships between extension of finite length signals and the number of the output data from an orthogonal compact support wavelet filter bank are studied. The method of extending finite length signals for filters with different lengths in a filter bank is given and the range of signals perfectly reconstructed is computer. The condition that the number of the output data from a orthogonal compact support wavelet filter bank equals the length of the input signal is given and proved.更多还原