NDLI: Diversity gain for MIMO radar employing nonorthogonal waveforms

Content Provider	IEEE Xplore Digital Library
Author	Qian He Blum, R.S.
Copyright Year	2010
Description	Author affiliation: EE Department, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731 China (Qian He) \|\| ECE Department, Lehigh University, Bethlehem, PA 18015 USA (Blum, R.S.)
Abstract	Initially we formulate a very general hypothesis testing problem where we attempt to distinguish between zero-mean Gaussian clutter-plus-noise only and returns which are a linear transformed version of a zero-mean Gaussian random vector plus this clutter-plus-noise. We show that the diversity gain of the optimum processing for this hypothesis testing problem must be less than or equal to the rank of the linear transform. Next we apply this result to study diversity gain for optimum MIMO radar processors for cases with M transmit antennas, N receive antennas, and a target composed of Q scatterers. If the transmitted waveforms span a lower dimension M' than M, then the largest possible diversity gain is no greater than min(NM', Q). We also show a diversity gain of min(NM', Q) can be achieved under certain conditions. For a general correlated Gaussian clutter-plus-noise model and a general correlated Gaussian reflection coefficient vector, the diversity gain for noncoherent and coherent processing is discussed. Extensions of all results to cases with nonGaussian reflections and clutter-plus-noise are discussed.
Starting Page	1
Ending Page	6
File Size	3399411
Page Count	6
File Format	PDF
ISBN	9781424462858
e-ISBN	9781424462872
DOI	10.1109/ISCCSP.2010.5463446
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-03
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transmitting antennas Receiving antennas Diversity methods Radar scattering Radar antennas MIMO Reflection Radar signal processing Helium Testing
Content Type	Text
Resource Type	Article

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