DocumentCode :
2453814
Title :
Beamforming issues in modern MIMO Radars with Doppler
Author :
Chen, Chun-Yang ; Vaidyanathan, P.P.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA
fYear :
2006
fDate :
Oct. 29 2006-Nov. 1 2006
Firstpage :
41
Lastpage :
45
Abstract :
In traditional beamforming radar systems, the transmitting antennas send coherent waveforms which form a highly focused beam. In the MIMO radar system, the transmitter sends noncoherent (possibly orthogonal) broad (possibly omni-directional) waveforms. These waveforms can be extracted by a matched filterbank at the receiver. The extracted signals can be used to obtain more diversity or improve the clutter resolution. This paper focuses on space-time adaptive processing (STAP) for MlMO radar systems which improves the clutter resolution. The size of the MIMO STAP steering vector can be much larger than the traditional SIMO STAP steering vector because of the extra dimension. An accurate estimation of clutter rank for the subspace method is developed, and is a generalization of Brennan´s rule to the MIMO radar case. A data independent method for estimating the clutter subspace is also described.
Keywords :
Doppler radar; MIMO communication; array signal processing; clutter; diversity reception; space-time adaptive processing; Brennan rule; Doppler radar; beamforming issue; beamforming radar system; clutter resolution; diversity reception; matched filterbank; modern MIMO radar; space-time adaptive processing; transmitting antenna; Array signal processing; Doppler radar; Filter bank; MIMO; Radar antennas; Radar clutter; Signal resolution; Spaceborne radar; Transmitters; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signals, Systems and Computers, 2006. ACSSC '06. Fortieth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
ISSN :
1058-6393
Print_ISBN :
1-4244-0784-2
Electronic_ISBN :
1058-6393
Type :
conf
DOI :
10.1109/ACSSC.2006.356579
Filename :
4176508
Link To Document :
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