A NEW METHOD FOR FINDING ELECTROMAGNETIC EMITTER LOCATION

The position of a source of radiation is often obtained from bearing d ata, taken over an internal of time, and combining it with navigation data. A new method using total least squares (TLS) has been suggested for the accurate estimation of an emitter location when bearing observ ation errors are random. Further, an iterative two-stage approach invo lving TLS and Kalman filtering is developed for accurate estimation of the emitter location when bearing observation errors are an algebraic sum of random and systematic errors. The elegance and efficacy of the proposed methods are illustrated through digital computer simulated e xamples.