摘要
本文深入分析了交流信号DFT分析中的有限记录长度效应的产生原因 ,推导了截断误差的频域表现关系 ,得出了精确测量周期信号参数的一种计算量很小的算法。
The cause of the effects of finite register length in DFT of AC signal is analyzed deeply and the picket-fence effect in frequency domain is deduced in this paper.An algorithm with little computation is brought forward to measure the parameters of periodic signal exactly.The simulation results agree with the theoretical predictions.
出处
《电子测量与仪器学报》
CSCD
2001年第1期48-52,共5页
Journal of Electronic Measurement and Instrumentation
