ENERGY SOURCE TRACKING SYSTEM EMPLOYING DRIFT-LINE TECHNIQUE

摘要

A tracking system approach which, unlike that of systems employing closed loop tracking techniques, points the boresight axis of an antenna at a computed future position of a radiating energy source. The source is allowed to drift through the conical scanning beam, during which time-energy detection measurements are made on a periodic basis. A computer receives the energy measurements and computes therefrom the equation of the best straight line corresponding to the error versus time relationship, whereupon the slope and intercept of this fitted line are utilized to compute pointing error. The system is then periodically updated on the basis of this pointing error.