航空重力重复线测试数据质量评价方法研究

The research on quality evaluation method of test repeat lines in airborne gravity survey

为了量化评估航空重力系统的性能指标,通常采用多次往返的重复线测量方式来测试航空重力仪动态测量的重复性和一致性,但现有规范中没有明确针对航空重力重复线测试数据质量的评估准则,本文研究总结了航空重力重复线测试数据均方差精度计算方法,依据重复线测试数据均方差内、外符合精度的计算结果,可以更为客观地评估仪器的动态测量精度指标和工作状态.

In order to quantitatively evaluate the performance index of airborne gravity system, repeated flight lines are usually used to test the coherence of dynamic survey of airborne gravimeter. However, there is no corresponding criterion in the current code to evaluate the quality of testing data of repeated lines of airborne gravity survey. We research and summarize a method of RMS （root mean square） accuracy calculation for testing data of repeat lines. Based on the calculation results of internal and external accord accuracy, we can objectively evaluate the dynamic accuracy index and working status of instrument.