Perspective Predictor/Flight-Path Display with Minimum Pilot Compensation

Abstract

Prediction can substantially enhance the novel guidance and control capabilities of perspective e ight-path displays.Apositionpredictorbasedongeometry/kinematicsrelationsisconsidered,andanextensionbasedonmanual control theory issuesis introduced. Pilot-centered requirementsfor compensatory control of the predictor ‐aircraft system are considered. It is shown which are the effects on pilot ‐predictor‐aircraft system crossover, system stability, response quality, and system bandwidth. A solution for a predictor with minimum pilot compensation is presented. Furthermore, it is shown that the e ight-path predictor is also an efe cient means for controlling the current state of the aircraft. The conceptual and theoretical predictor considerations are verie ed with pilot-in-theloop simulation experiments. Nomenclature e = error g = acceleration due to gravity K = gain Ld a = roll moment due to roll control input s = Laplace operator T = time constant Y(s) = transfer function y = lateral coordinate D = denoting a perturbation, for example, D y d a = roll control f = damping ratio s e = effective time delay u = roll angle v = azimuth angle x = frequency