DTIC ADA190010: Effect of Friction and Control pdf

DTIC ADA190010: Effect of Friction and Control

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The Tracking accuracy of a missile target seeker depends on many variables. For a target seeker using a gimbaled platform, an important variable is the friction induced by the preloaded bearings, and by the short wires which connect the target detector with the rest of the seeker’s electronics. This friction force is nonlinear and sufficiently large enough such that accurate position tracking of a target, whether stationary or moving, is difficult. Conventional control methods such as P.D. (proportional plus derivative) or P.I. D. (proportional plus derivative plus integral) control action can not satisfactorily meet the error criteria. To overcome the deficiency of these two methods, a model-reference method has been synthesized, relying on idealized predictor corrector control to improve the tracking accuracy of the missile seeker. Computer simulations using the Dynamic Simulation Language have demonstrated the superior performance expected from this method

• Creator/s: Defense Technical Information Center
• Date: 12/1/1987
• Year: 1987
• Book Topics/Themes: DTIC Archive, Chan, Joseph K, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COMPUTERIZED SIMULATION, *POSITION FINDING, *HOMING DEVICES, *BEARINGS, *TARGET DETECTION, *GUIDED MISSILE TARGETS, *GUIDED MISSILE COMPONENTS, *SIMULATION LANGUAGES, CONTROL, ELECTRONICS, PREDICTIONS, DYNAMICS, TRACKING, ACCURACY, TARGETS, SHORT RANGE(TIME), PLATFORMS, ERRORS, FRICTION, GIMBALS

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