Title :
Monopulse processing for DOA estimation of two unresolved Rayleigh targets with known relative RCS
Author :
Blair, W.D. ; Watson, G.A. ; Brandt-Pearce, M.
Author_Institution :
Dept. of Syst. Res. & Technol., Naval Surface Warfare Center, Dahlgren, VA, USA
Abstract :
When two targets are closely spaced with respect to the resolution of a radar, the measurements of the two targets will be merged when the target echoes are not resolved in angle, range, or radial velocity (i.e., Doppler processing). Monopulse processing is considered for direction of arrival (DOA) estimation of two unresolved Rayleigh targets with known relative radar cross section (RCS). The mean of the in-phase (i.e., the real part) monopulse ratio and the variance of the in-phase and quadrature monopulse ratios are utilized to estimate the DOAs of the two targets. Simulation results that illustrate performance of the DOA estimators are given along with simulation results for a tracking example
Keywords :
direction-of-arrival estimation; radar cross-sections; radar tracking; target tracking; DOA estimation; Doppler processing; direction of arrival; known relative RCS; known relative radar cross section; monopulse processing; monopulse ratio; quadrature monopulse ratios; radar resolution; radial velocity; simulation results; target echoes; tracking example; unresolved Rayleigh targets; variance; Clutter; Direction of arrival estimation; Doppler radar; Frequency estimation; Maximum likelihood detection; Radar cross section; Radar measurements; Radar tracking; Target tracking; Velocity measurement;
Conference_Titel :
System Theory, 1997., Proceedings of the Twenty-Ninth Southeastern Symposium on
Conference_Location :
Cookeville, TN
Print_ISBN :
0-8186-7873-9
DOI :
10.1109/SSST.1997.581697
