Generally based on surveys of typical geological section, it can be determined that if the shortrange terrain correction of gravity exploration is necessary or not.
重力勘探的近区地形改正，一般通过典型剖面的试验来确定是否需要改正，并采用简易地改仪实测地形改正值。
Combined with the system state equation and the measurement equation, a new method of the cascade Kalman filter is proposed and applied to the correction of gravity anomaly distortion.
结合实际重力仪的系统状态方程和系统量测方程，提出了级联卡尔曼滤波方法，并将其应用于重力异常畸变信号的校正处理中。
Through calculating, analysing and comparing the real data measured in two regions, indeed, it is proved that precision of gravity data after temperature correction increased somewhat.
由两个测区的实测重力资料计算分析和对比，证明改正格值受温度影响后，重力资料的精度有所提高。
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