Power Law Noise Identification Using the LAG 1 Autocorrelation by Overlapping Samples
There are various random errors in the fiber optical gyroscope (FOG) output signal. At the aim of improving its accuracy, it is need to identify the kinds of errors. The most common method for power law noise identification is simply to observe the slope of a log-log plot of the Allan or modified Allan deviation versus averaging time, either manually or by fitting a line to it. The lag 1 autocorrelation method is a new method for power law noise identification that can determine the dominant noise type for all common noise processes, from phase or frequency data, for all averaging factors, in a consistent and analytic manner. This paper describes an improvement of it by overlapping samples, which improves the confidence of the resulting stability estimate at the expense of greater computational time.
power law noise autocorrelation frequency stability analysis. Allan variance
Zhou Chunlei Zhang Qi Yan Shuhua
College of Mechatronic Engineering and Automation,National University of Defense Technology Changsha,Hunan 410073,China
国际会议
2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)
成都
英文
459-462
2011-08-16（万方平台首次上网日期，不代表论文的发表时间）