长波授时附加二次相位因子ASF误差分析

Analysis the Error of the ASF in Long-wave Time Service

为提高长波授时精度,分析了影响ASF误差的因素。主要针对米林顿法计算ASF中的地图测距误差、大地等效电导率误差和大地等效电导率区域分割误差,设计实验、采集数据、分析实验结果,并提出减小ASF误差的新方案。

To improve the long-wave timing accuracy, the factors were analyzed that affected the errors of ASF. In the progress of calculated the ASF by Millington algorithm, experiments were designed to point at the errors of the map location, the ground conductivity and the region segmentation, then, col- lected data and analyzed the results. Finally, the new methods to reduce the errors of ASF put forward.