利用计算机对话框判定天测罗经差计算方位的精度

Determining the Accuracy in Calculating Bearings by Celestially Observing Compass Errors by Computer Dialogue Boxes

观测天体低高度罗方位求罗经差,天体计算方位误差的大小,会直接影响所测罗经差的精度。编辑计算机程序,利用人机对话,显示天体计算方位误差的变化曲线,可以很直观地了解到天体计算方位误差的变化,从而选择观测天体罗方位的最佳时机,进一步提高计算方位的精度。

in obtaining compass errors by observing compass beatings of celestial bodies at low altitude, the errors in calculating celestial body＇s beatings will have a direct influence on the accuracy of the observed compass errors. By compiling a computer program with computer - human dialogues and further by displaying a variation curve of errors in calculating celestial body＇s bearings, the variation of the errors in calculating celestial body＇s beatings will be readily understood,so that the best timing of observation can be selected to further improve the accuracy in calculation the above bearings