摘要
本文提出了非整周期采样谐波分析法。采用这种新方法分析谐波时，采样中存在的同步偏差，不但不会产生频谱泄漏误差，而且在一定条件下，还能使谐波分析次数突破传统Ｎｙｑｕｉｓｔ率的限制。提出的非整周期采样谐波分析也能借助ＦＦＴ来提高运算速度。
Abstract In this paper,a new method namly harmonic analysis based on non- inte-ger- period Sampling for spectrum analysis of periodic signals is preposed. By this method,the sychronous derivation(The noncoincidence between the sampling period and signal peri-od) does not occur leakage error and the highest- order harmonic that is analysized can exceedNyquist ratio. The non- integer- period sampling algorithms can make use of FFT(Fast-Fourier Transform)to reduce the calculation time.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
1995年第1期1-7,共7页
Chinese Journal of Scientific Instrument
