LaCoste&Romberg航空重力仪的交叉耦合改正 Cross-Coupling Correction for LaCoste & Romberg Air

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^jg-IG+["f2N0Abstract:The cross-coupling corrections for the LaCoste & Romberg airborne gravimeter are computed as a linear combination of 5 so-called cross-coupling monitors. The weight factors (coefficients) determined from marine gravity data by the factory are obviously not optimal for airborne application. These coefficients are recalibrated by minimizing the difference between airborne data and upward continued surface data (external calibration) and by minimizing the errors at line crossings(internal calibration) respectively. An integrating method to recalibrate the above-mentioned coefficients and the beam scale factor simultaneously is also presented. Experimental results show that the systemic errors in the airborne gravity anomalies can be greatly reduced by using any of the recalibrated coefficients. For example, the systemic error is reduced from 4.8 mGal to 1.8 mGal in Datongtest.

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作者:水利论文(_`2?C4`

8mu1]{7j U*s0孙中苗 夏哲仁 李迎春水利论文%F W7jO/@o {:^

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SUN Zhongmiao XIA Zheren LI Yingchun水利论文+u9y6nU1^J:H5B"{

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作者单位:水利论文U c!f,g%@F.g?(M

/y;` a ^.G9ZN0Xi'an Research Institute of Surveying and Mapping, 1 Middle Yanta Road, Xi'an 710054, China

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期 刊:水利论文"qI N/M6_:V|I&u

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地球空间信息科学学报(英文版)

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GEO-SPATIAL INFORMATION SCIENCE水利论文-ar_P,sM

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年,卷(期):水利论文7},Af+I x

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2007, 10(3)水利论文$Y)x"S%LK2^-Z8o

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Keywords:水利论文p k[a(I]

%hI"OO_XU&c0airborne gravimetry水利论文7a C!x7tjq'R

mL7aTK f^0cross-coupling correction水利论文6s O%an5BqA

h+tc6D3B0airborne gravimeter水利论文2@M0U6BnX8I

0KcKFE1X'^)sT0systemic error

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s$r|$UMcItfce#J+@0机标关键词:

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:mW:?0o#pW$l.bB t6kr0航空重力仪 交叉耦合 airborne gravimeter linear combination scale factor gravity data

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1G'pa&u7]d0基金项目:水利论文*qqi0a Zq!p&Q?)[

k]&^'q vO.J7E0LaCoste&Romberg航空重力仪的交叉耦合改正水利论文Q!N2[&F5_+m0qh

#WF?k8V{0[期刊论文] 地球空间信息科学学报(英文版) --2007, 10(3)水利论文 T(k&v6By

#z1q*}-WZ"GBP1Hc0孙中苗 夏哲仁 李迎春

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The cross-coupling corrections for the LaCoste & Romberg airborne gravimeter are computed as a linear combination of 5 so-called cross-coupling monitors. The weight factors (coefficients) determined fr...

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