摘要
时域采样定理要求采样频率是信号最高频率的两倍以上,而且通常是2.5倍左右,但是在这个采样频率下所采得的信号波形已经完全失真.本文探讨了如何将采样后失真的波形恢复到原来真正波形的理论和方法,而且用仿真的办法验证了波形恢复后的良好效果.
According to sampling signal theorem, sampling frequency must be more than twice of the maximum frequency of signal, and it is often half past twice or so. But under this sampling frequency, the waveform of sampled signal is deformed seriously. This paper disousses how to regain the formal signal from the deformed waveform. Through emulation, this method is proved to be highly effective.
出处
《佳木斯大学学报（自然科学版）》
CAS
2007年第1期82-84,共3页
Journal of Jiamusi University：Natural Science Edition
关键词
采样定理
信号重构
仿真
sampling theorem
signal rebuilding
emulation
