用加权延时法重构多阶采样信号

Signal Reconstruction from Periodically Non-uniform Sampling Using the Scheme of Weighted Time Delay Estimation

介绍了用加权延时法重构多阶采样信号的原理,该方法通过对各路均匀采样信号分别加权延时来消除频率混叠,把理想滤波器放到采样流合并之后,与滤波器组重构方法相比较,减少了滤波器的使用次数,从而减小了由非理想滤波引入的误差,实现简单.

This paper introduces the principle of reconstruction of the signals from periodically non-uniform sampling by the scheme of weighted time delay estimation. The frequency aliasing is removed by weighting and delaying each uniform sample stream. Only one interpolating filter is applied on the jointed samples of weighted and delayed uniform sample streams. Consequently it reduces the reconstruction error and can be implemented more efficiently.