Waveform-dependent Bayesian Cramér-Rao angle-estimation bounds and threshold SNR estimates for MIMO radars

Bill Correll, Joshua M. Kantor, Daniel W. Bliss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Multiple-input multiple-output (MIMO) radars operate by simultaneously transmitting multiple independent waveforms. This facilitates improved angle-estimation performance by enabling the use of sparse antenna arrays without the ambiguities that occur when sparse arrays are used in conventional radars. Angle-estimation performance can be characterized in terms of the local error-performance bound given by the Cramér-Rao bound and in terms of the threshold point given by the SNR at which the estimator deviates significantly from the Cramér-Rao bound. In this paper, we extend results of Bliss, Forsythe, and Richmond on angle-estimation performance as a function of transmit waveform covariance for a MIMO radar. The analysis described in the above work is dependent upon an estimate or test location of a target position. Here, we provide a framework for a Bayesian extension that incorporates knowledge of the priors on the target position probability density. This information affects both the Cramér-Rao bound and the threshold SNR. Consequently, it affects waveform and system optimization.

Original languageEnglish (US)
Title of host publicationRadarCon'11 - In the Eye of the Storm
Subtitle of host publication2011 IEEE Radar Conference
Pages503-508
Number of pages6
DOIs
StatePublished - Sep 12 2011
Externally publishedYes
Event2011 IEEE Radar Conference: In the Eye of the Storm, RadarCon'11 - Kansas City, MO, United States
Duration: May 23 2011May 27 2011

Publication series

NameIEEE National Radar Conference - Proceedings
ISSN (Print)1097-5659

Other

Other2011 IEEE Radar Conference: In the Eye of the Storm, RadarCon'11
CountryUnited States
CityKansas City, MO
Period5/23/115/27/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Correll, B., Kantor, J. M., & Bliss, D. W. (2011). Waveform-dependent Bayesian Cramér-Rao angle-estimation bounds and threshold SNR estimates for MIMO radars. In RadarCon'11 - In the Eye of the Storm: 2011 IEEE Radar Conference (pp. 503-508). [5960588] (IEEE National Radar Conference - Proceedings). https://doi.org/10.1109/RADAR.2011.5960588