Discrimination of Angle-Doppler Signatures using Arbitrary Phase Center Motion for MIMO Radars

Hammes, Christian; Nijsure, Yogesh; Shankar, Bhavani; Schröder, Udo; Ottersten, Björn

Reference : Discrimination of Angle-Doppler Signatures using Arbitrary Phase Center Motion for MI...


	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Computer science
	To cite this reference:	http://hdl.handle.net/10993/30618

Title :	Discrimination of Angle-Doppler Signatures using Arbitrary Phase Center Motion for MIMO Radars
Language :	English
Author, co-author :	Hammes, Christian [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Nijsure, Yogesh [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Shankar, Bhavani [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Schröder, Udo [> >]
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	May-2017
Main document title :	IEEE Radar Conf 2017
Peer reviewed :	Yes
Audience :	International
Event name :	IEEE Radar Conference 2017
Event date :	from 08-05-2017 to 12-05-2017
Event place (city) :	Seattle
Event country :	USA
Keywords :	[en] MIMO Radar ; virtual MIMO ; Phase Center Motion
Abstract :	[en] A novel Phase Center Motion (PCM) based technique for discriminating angle-Doppler signatures within Multiple-Input-Multiple-Output (MIMO) radars using Frequency Modulated Continuous Wave (FMCW) has been explored in this work. The PCM technique induces angle dependent Doppler shifts in the back-scattered signal, wherein a modified Doppler post processing for FMCW leads to joint angle-Doppler processing. Specifically, we intend to design unique spatialtemporal motion of the phase center on each individual MIMO radar channel in an effort to synthesize nearly orthogonal angle-Doppler signatures. Subsequently, we also develop a MIMO radar receiver design, which would be capable of discriminating between these induced angle-Doppler signatures. The asymptotic investigation provides a Bessel function characteristic. Simulation results demonstrate a significant side-lobe suppression of 8:5 dB for an individual PCM trajectory and 7 dB over distinct PCM trajectories, in an attempt towards realization of nearly orthogonal MIMO radar channels.
Permalink :	http://hdl.handle.net/10993/30618

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