Title :
Maximum likelihood processing with digital beamforming
Author :
Davis, R.M. ; Fante, R.L.
Author_Institution :
Mitre Corp., Bedford, MA, USA
Abstract :
The authors describe a two-stage digital beamforming architecture for use in radar. The first stage implements a fully adaptive array of subarrays while the second stage implements a fully adaptive array of beams. Maximum likelihood processing is used in the second stage to estimate target amplitude and angle of arrival. The new architecture supports improved search and track performance compared to traditional systems that use a single receive beam and monopulse processing to measure angle.
Keywords :
adaptive antenna arrays; adaptive radar; amplitude estimation; array signal processing; direction-of-arrival estimation; interference suppression; maximum likelihood estimation; radar antennas; radar signal processing; radar tracking; radiofrequency interference; target tracking; adaptive array; angle measurement; angle of arrival estimation; antenna architecture; digital beamforming; interference; maximum likelihood beamspace processor; maximum likelihood processing; radar; search performance; subarrays; target amplitude estimation; track performance; two-stage digital beamforming architecture; Adaptive arrays; Amplitude estimation; Antenna measurements; Array signal processing; Goniometers; Maximum likelihood detection; Maximum likelihood estimation; Radar tracking; Shape measurement; Target tracking;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.875364
