【作者】 黄谟涛； 欧阳永忠； 陆秀平； 翟国君；

【Author】 HUANG Mo-tao~1,OUYANG Yong-zhong~(1,2),LU Xiu-ping~(1,3),ZHAI Guo-jun~1 (1.Navel Institute of Hydrographic Surveying and Charting,Tianjin,300061; 2.Institute of Surveying and Mapping,Wuhan University,Wuhan,Hubei,430079; 3.Naval University of Engineering,Wuhan,Hubei,430033)

【机构】 海军海洋测绘研究所； 武汉大学测绘学院； 海军工程大学；

【摘要】 由于结构设计上的特殊性,L&R海空重力仪测量数据受动态环境因素影响特别明显。为了消弱各类误差源的影响,本文提出一种两阶段误差综合补偿方法,第一阶段采用相关分析法对仪器厂家标定的交叉耦合改正(简称CC改正)不足进行修正,第二阶段采用测线网平差对各类剩余误差的综合影响进行补偿。实际观测数据处理结果已经验证了该方法的有效性和可靠性。更多还原

【Abstract】 The performance of L&R gravimeter varies greatly under the influence of dynamic sea or air environment due to its special structural design.In order to eliminate the disturbance of different kind of errors,we propose an integrated method with two steps for compensating the systematic errors of marine and airborne measurements from L&R gravimeter.In the first step,crosscorrelation analysis is used to make corrections for the original cross-coupling correction coefficients obtained from the instrument manufacture, and give a systematic correction to the observed gravity.Then surveying line system adjustment is applied to the corrected gravity to further eliminate the disturbance of remainder errors in the second step.Finally,a practical marine gravity measurement set is used as a case study to prove the efficiency of the integrated data processing method.更多还原