Maximum likelihood processing with digital beamforming

Author

Davis, R.M. ; Fante, R.L.

Author_Institution

Mitre Corp., Bedford, MA, USA

Volume

2

fYear

2000

fDate

16-21 July 2000

Firstpage

898

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2000. IEEE

Conference_Location

Salt Lake City, UT, USA

Print_ISBN

0-7803-6369-8

Type

conf

DOI

10.1109/APS.2000.875364

Filename

875364