使用立方b样条小波的均值插值。使用立方b样条小波的细分插值。-Average interpolation using cubic B-spline wavelet.Subdivision interpolation using cubic B-spline wavelet.

验证小波对信号频率的细分，验证重构信号的频谱。-Validation of wavelet in signal frequency subdivision, reconstructing signal spectrum.

Subdivision interpolation using cubic B-spline wavelet.

小波变换 信号处理 通过伸缩平移运算对信号（函数)逐步进行多尺度细化，最终达到高频处时间细分，低频处频率细分，能自动适应时频信号分析的要求，从而可聚焦到信号的任意细节。(Wavelet transform signal processing through the telescopic translation operations to signal (function) step by step multi scale refinement, the final breakdown of ti