| 摘要 |
The present invention provides a system and method for simulating aircraft flight path trajectory by integrating the point mass equations using a selectable non-time based integration variable, including altitude, velocity or range. The present invention separates the horizontal and vertical profiles of an aircraft's flight path trajectory. The horizontal profile is specified as a series of waypoints, defined by latitude-longitude pairs and the vertical profile is specified as an initial state and a list of segment types, defined by altitude and velocity, and end states. The altitude-velocity segment types are continuous, such that the end state of one segment is the starting point of the following segment. The point mass equations and the non-time based integration variables are iteratively integrated to merge the horizontal and vertical profiles of a flight path trajectory. The present invention provides improved aircraft position accuracy and the use of a non-time based integration variable enables greater simulation efficiency.
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