A-10绝对重力仪残差谱分析  

Analysis on frequency spectrum of residual error from A-10 absolute gravity meter

作　　者：赵珞成[1] 罗志才[1] 王东晓 王德征 

机构地区：[1]武汉大学测绘学院,武汉430079 [2]三亚市测绘院,海南三亚572003

出　　处：《测绘科学》2010年第1期47-49,共3页Science of Surveying and Mapping

基　　金：A-10便携式绝对重力仪的性能研究(编号:08-02-09)

摘　　要：自由落体式绝对重力仪A-10的测量数据拟合残差呈现出明显的周期信号,对4个测站的残差进行FFT处理,并进行频谱分析,结果表明残差组平均的频谱更加稳定,主峰频率与测站无关,主峰幅值与测站明显相关,加周期项改正的绝对重力值偏小。There are obvious periodic signals in residual errors from measurements of free fall absolute gravity meter A-10, the residual errors from 4 stations are processed with FFT, frequency spectrum are analyzed, the results indicate frequency spectrum of set average of residual error are more stable, the main peak frequency is independent of station, the main peak amplitude is dependent of station, the absolute gravity values are lower after periodic corrections.

关 键 词：A-10 绝对重力仪 残差 FFT 频谱 

分 类 号：P223.1[天文地球—大地测量学与测量工程] V557[天文地球—测绘科学与技术]