Title :
A new method for finding electromagnetic emitter location
Author :
Deergha Rao, K. ; Reddy, D.C.
Author_Institution :
Res. & Training Unit for Navigational Electron., Osmania Univ., Hyderabad
fDate :
10/1/1994 12:00:00 AM
Abstract :
The position of a source of radiation is often obtained from bearing data, taken over an interval 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 observation errors are random. Further, an iterative two-stage approach involving 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 examples
Keywords :
Kalman filters; array signal processing; digital simulation; error analysis; iterative methods; least squares approximations; navigation; parameter estimation; random processes; Kalman filtering; Mercator projection; TLS; accurate estimation; bearing data; bearing observation errors; digital computer simulation; efficacy; electromagnetic emitter location; emitter location; iterative two-stage approach; navigation data; random errors; source of radiation; systematic errors; total least squares; Aerodynamics; Aerospace electronics; Aircraft; Computer errors; Electromagnetic radiation; Equations; Iterative methods; Kalman filters; Least squares approximation; Space vehicles;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
