Abstract
Theme T objectives of this paper are twofold: first, to present the fin position 6 and body rate 0 feedback shaping transfer functions that equate a conventional fin feedback autopilot to a autopilot that replaces fin feedback with body angular acceleration 6 as a feedback signal. The word reference is used because there are no practical angular accelerometer sensors available for measuring body angular accelerations, and also, for analysis reasons, the angular acceleration loop is assumed to be free of the tolerance problem that is inherent in matching M6 in the feedback path with M5 in the forward path. The second objective is to demonstrate the practical application of this control scheme by analysis and examples with the end view being to facilitate rigid-body autopilot design work and to maximize the controllable aerodynamic regime of vehicles that are subject to large Ma.
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