Two predictor laws are formulated and analyzed: (1) a circular path law based on constant accelerations perpendicular to the path and (2) a predictor law based on state transition matrix computations. It is shown that for both methods the predictor provides the essential lead zeros for the path-following task. However, in contrast to the circular path law, the state transition matrix law furnishes the system with additional zeros that entirely cancel out the higher-frequency poles of the vehicle dynamics. On the other hand, the circular path law yields a zero steady-state error in following a curved trajectory with a constant radius. A combined predictor law is suggested that utilizes the advantages of both methods. A simple analysis shows that the optimal prediction time mainly depends on the level of precision required in the path-following task, and guidelines for determining the optimal prediction time are given.
Predictor laws for pictorial flight displays
1985-10-01
Miscellaneous
No indication
English
Predictor laws for pictorial flight displays
AIAA | 1985
|Color Formatting Issues in Pictorial Displays
SAE Technical Papers | 1986
|Decca flight log pictorial presentation
Engineering Index Backfile | 1951
|Improving Situational Awareness Through the Use of Intuitive Pictorial Displays
SAE Technical Papers | 1990
|