Spread spectrum digital beamforming virtual array and scalability to millimeter wavelength frequencies MMW-SSDBF virtual array

Author

Bergamo, Marcos A. ; Weedon, William H.

Author_Institution

Intell. Autom. Inc., Rockville, MD, USA

fYear

2013

fDate

15-18 Oct. 2013

Firstpage

649

Lastpage

652

Abstract

This paper describes a millimeter-wave spread spectrum digital beamforming (MMW-SSDBF) technique employing large-aperture 2D MIMO virtual arrays. The MIMO array utilizes truly shift-orthogonal (TSOC) radar waveforms in order to significantly reduce hardware complexity, thereby enabling implementation of the low-cost wafer array. The architecture utilizes simple branch-line coupler bi-phase modulators per element to implement the beamforming operations, with a single digital transceiver for the whole array.

Keywords

MIMO radar; array signal processing; millimetre wave radar; phase modulation; spread spectrum radar; transceivers; MMW-SSDBF technique; TSOC radar waveform; branch-line coupler biphase modulator; digital transceiver; hardware complexity; large-aperture 2D virtual array; low-cost wafer array; millimeter-wave spread spectrum digital beamforming technique; scalability; truly shift-orthogonal radar waveform; Array signal processing; Arrays; MIMO; Modulation; Radar; Receivers; Transmitters; MIMO; TSOC; digital beamforming; spread spectrum; virtual array;

fLanguage

English

Publisher

ieee

Conference_Titel

Phased Array Systems & Technology, 2013 IEEE International Symposium on

Conference_Location

Waltham, MA

Type

conf

DOI

10.1109/ARRAY.2013.6731906

Filename

6731906