The short-base levelling data at Zhangdaou is analysed by the moving AR spectrum analysis.
用滑动AR 谱分析方法对唐山地震前后的张道口短水准资料进行了分析。
The method for measuring the compactness of soft soil by instant hammering, and the signal analysis method based the wavelet and AR spectrum analysis are put forward.
针对地球质心运动主要是由多种周期运动叠加的特点，依次讨论了谱分析方法中的AR模型谱分析和小波谱分析方法。
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