Extended navigation parameters (ENP) and greatcircle flight path (GCFP) calculated algorithms are presented in detail and the algorithm flow chart is presented.
详细推导并提出了扩展导航参数及大圆航线航迹解算算法，还给出了算法流程图。
2
One is straight line or curve on the local plane. The other is the greatcircle flight path on the earth surface.