非均匀取样周期信号时间偏差估计算法研究

本文在非均匀取样一般理论的基础上，提出了一种估计非均匀取样时间偏差的算法，并给出一种可校正非均匀取样周期信号时间偏差的波形数字化器结构的设想，仿真结果表明，当输入测试信号为多频正弦信号时，用一个８ｂｉｔ的量化器，剩余时间偏差可减小至取样周期的０．１５％。

The Study of Sampling Time Offset Estimation Algorithm for the Nonuniformly Sampled Periodic Signal

In this paper,based on the normal theory of nonuniform sampling,we propose analgorithm to estimate the sampling time offsets and give a new waveform digitizer architecture.Simulation results indicate that with a multi-frequency sinewave as input signal,using an 8- bitquantizer,the residual timing error can be reduced to about 0. 15 percent of the sampling period.