MIMO Radar Ambiguity Functions

Multiple-Input Multiple-Output (MIMO) radar has been shown to provide enhanced performance in theory and in practice. MIMO radars are equipped with the ability to choose freely their transmitted waveforms at each aperture. In conventional radar systems Woodward's ambiguity function is used to c...

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Bibliographic Details
Published inIEEE journal of selected topics in signal processing Vol. 1; no. 1; pp. 167 - 177
Main Authors San Antonio, G., Fuhrmann, D.R., Robey, F.C.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2007
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Ambiguity
Ambiguity function
Apertures
Arrays
beamforming
Communication systems
Control systems
Covariance
Doppler radar
MIMO
multiple-input multiple-output (MIMO)
Parameter estimation
Radar
Radar imaging
Radar signal processing
Radar theory
Radar tracking
Sensor systems
Signal processing
Visual
Waveforms
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Summary:Multiple-Input Multiple-Output (MIMO) radar has been shown to provide enhanced performance in theory and in practice. MIMO radars are equipped with the ability to choose freely their transmitted waveforms at each aperture. In conventional radar systems Woodward's ambiguity function is used to characterize waveform resolution performance. In this paper we extend the idea of waveform ambiguity functions to MIMO radars. MIMO ambiguity functions are developed that simultaneously characterize the effects of array geometry and transmitted waveforms on resolution performance. Overall resolution performance is shown to be governed by a space-time covariance function that can be controlled by the system on transmit using waveform diversity. Visual examples are provided to illustrate the resolution enhancement possible using MIMO technology
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1932-4553
1941-0484
DOI:10.1109/JSTSP.2007.897058