The AR spectrum is smoothness and can give exact characteristic frequency.
时序建模作出的AR谱具有谱线平滑，特征频率定位准确的优点。
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。
There are some anomalous changes of AR spectrum parameters during the Tangshan earthquake.
AR 谱分析参数在唐山地震期间出现异常变化。
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