An Automatic, Continuously Variable Gain Controller for the LANCE directional Control Electronics
ARMY MISSILE RESEARCH DEVELOPMENT AND ENGINEERING LAB REDSTONE ARSENAL AL GUIDANCE AND CONTROL DIRECTORATE
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A desire to increase accuracy of the LANCE directional control system in the presence of variable crosswinds prompted an investigation into methods of applying a continuous time varying gain controller to the directional control electronics. A function generator was designed whose output voltage reproduced the time varying characteristic of nominal static margin. With this function generator as the driving source, three variable gain amplifiers were designed that utilized three different concepts. A preliminary design of a dual-band function generator to allow for either a light or a heavy warhead was considered. A firm design of this is not possible until more simulations using the heavy warhead are performed. Preliminary consideration was given to the increased components required to implement the continuously variable gain controller and the problem of packaging it in the present directional control system. It appears feasible that the variable gain controller can be packaged in the required space using presently available technology.
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