Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications
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The Ohio State University / OhioLINK
2012
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ndltd-OhioLink-oai-etd.ohiolink.edu-osu13455716502021-08-03T06:06:31Z Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications Yankevich, Evgeny Automotive Engineering Computer Engineering Computer Science Electrical Engineering Electromagnetics Electromagnetism Geotechnology Technical Communication GMTI MIMO Radar Nonorthogonal Waveforms <p>Multi input multi output (MIMO) radar is a radar system with multiple receive and transmit antennas, that can transmit independent waveforms on each transmit elements. Although many traditional multi-antenna radar concepts such as phased-array, receive beamforming, synthetic aperture radar (SAR), polarimetry, and interferometry can be seen as special cases of MIMO radar, the distinct advantage of a multi-antenna radar system with independent transmit waveforms is the increased number of degrees of freedom leading to improved resolution and performance in detection and parameter estimation tasks.</p><p>A promising application of MIMO radar is the identification of slowly moving targets using airborne MIMO radar platforms. The advantage of using MIMO in this configuration is its ability to synthesize a larger virtual array with relatively fewer antennas. This allows higher spatial resolution and better separation of returns from ground clutter and targets. The space-time adaptive processing (STAP) methods originally developed for Single-input, Multiple-output (SIMO) radar are applicable to MIMO radar systems after proper pre-processing of the received signals. The performance of STAP algorithm critically hinges on the structure of the clutter covariance matrix; therefore, MIMO STAP methods will benefit greatly from theoretical and empirical study of the clutter statistics. </p><p>The contribution of this work can be summarized in three parts. First, we present a design of a rooftop MIMO radar testbed that emulates a MIMO GMTI system mounted on airborne platform. Second, we give results of a simulation study of ground clutter for the testbed rooftop geometry, highlighting potential issues with the relatively close range. Third, we extend previous results on clutter covariance matrix rank for MIMO systems with orthogonal waveforms to the case of MIMO systems employing nonorthogonal waveforms. Relationship between rank of covariance matrix of orthogonal and nonorthogonal waveforms was established.</p> 2012-08-31 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1345571650 http://rave.ohiolink.edu/etdc/view?acc_num=osu1345571650 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Automotive Engineering Computer Engineering Computer Science Electrical Engineering Electromagnetics Electromagnetism Geotechnology Technical Communication GMTI MIMO Radar Nonorthogonal Waveforms |
| spellingShingle |
Automotive Engineering Computer Engineering Computer Science Electrical Engineering Electromagnetics Electromagnetism Geotechnology Technical Communication GMTI MIMO Radar Nonorthogonal Waveforms Yankevich, Evgeny Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications |
| author |
Yankevich, Evgeny |
| author_facet |
Yankevich, Evgeny |
| author_sort |
Yankevich, Evgeny |
| title |
Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications |
| title_short |
Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications |
| title_full |
Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications |
| title_fullStr |
Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications |
| title_full_unstemmed |
Design of an Airborne Multi-input Multi-output Radar Emulator Testbed for Ground Moving Target Identification Applications |
| title_sort |
design of an airborne multi-input multi-output radar emulator testbed for ground moving target identification applications |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2012 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1345571650 |
| work_keys_str_mv |
AT yankevichevgeny designofanairbornemultiinputmultioutputradaremulatortestbedforgroundmovingtargetidentificationapplications |
| _version_ |
1719431016889712640 |