| A-10绝对重力仪残差谱分析 |
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| 引用本文： | 赵珞成,罗志才,王东晓,王德征.A-10绝对重力仪残差谱分析[J].测绘科学,2010,35(1):47-49. |
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| 作者姓名： | 赵珞成 罗志才 王东晓 王德征 |
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| 作者单位： | 武汉大学测绘学院,武汉,430079;三亚市测绘院,海南,三亚,572003 |
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| 基金项目： | A-10便携式绝对重力仪的性能研究(编号:08-02-09) |
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| 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。
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| 关 键 词： | A-10 绝对重力仪 残差 FFT 频谱 |
Analysis on frequency spectrum of residual error from A-10 absolute gravity meter |
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| ZHAO Luo-cheng,LUO Zhi-cai,WANG Dong-xiao,WANG De-zheng.Analysis on frequency spectrum of residual error from A-10 absolute gravity meter[J].Science of Surveying and Mapping,2010,35(1):47-49. |
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| Authors: | ZHAO Luo-cheng LUO Zhi-cai WANG Dong-xiao WANG De-zheng |
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| Abstract: | 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. |
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| Keywords: | A-10 absolute gravity meter residual error FFT frequency spectrum |
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