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中文摘要：
介绍了重力卫星CHAMP，GRACE，GOCE和利用卫星观测数据解算地球重力场的方法以及加速度数据的处理方法，探讨了基于能量守恒方法恢复地球重力场模型的原理，将基于能量守恒方法利用CHAMP卫星星历数据恢复的地球重力场模型与EGM96重力场模型进行比较，结果验证了CHAMP卫星对地球中、长波重力场的敏感性，以及能量守恒方法恢复低阶地球重力场位系数的有效性。
英文摘要：
An introduction was given to the gravity satellites CHAMP, GRACE, and GOCE and methods for dealing with the data of acceleration and calculating earth gravity field with observed data from gravity satellites. The principle of model development for recovery of earth gravity field based on energy conservation theory was discussed. The comparison of the earth gravity field model based on the observed data from CHAMP satellite and energy conservation theory with EGM96 gravity field model shows that CHAMP satellite is sensitive to medium and long wavelength of gravity field, and that energy conservation theory is effective for recovery of low-order potential coefficients of earth gravity field.
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