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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Abstract: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.水利论文 Ni)K {!p8\Jh

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孙中苗 夏哲仁 李迎春

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作者单位:

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Xi'an Research Institute of Surveying and Mapping, 1 Middle Yanta Road, Xi'an 710054, China

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地球空间信息科学学报(英文版)水利论文jU'aD*X&Ld6n

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S(h1NB1]0GEO-SPATIAL INFORMATION SCIENCE

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年,卷(期):

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2007, 10(3)

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Keywords:水利论文6f2@;zmq3QU8Dy

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airborne gravimetry

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cross-coupling correction

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airborne gravimeter水利论文Ae9qY r8Ja

Y)R%E9}8RMf~0systemic error水利论文!F1_OWUY ~+Yn

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航空重力仪 交叉耦合 airborne gravimeter linear combination scale factor gravity data水利论文'g8^ka3uh

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%]rI5G1w:Z\7~ljS0LaCoste&Romberg航空重力仪的交叉耦合改正

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b LB {R0Y0[期刊论文] 地球空间信息科学学报(英文版) --2007, 10(3)

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VC n id:Z.t5C0孙中苗 夏哲仁 李迎春

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nGO7?/bdtU0The 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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