MIMO SAR/MTI system design and signal analysis for moving target indiction

Multiple-input multiple-output (MIMO) system is one of the major focuses on research activities for mobile communication. Since late 1990s active studies on MIMO radar system have been done as well. Inspired by recent advances in MIMO radar, the MIMO synthetic aperture radar (SAR) concept was advanced. In this paper,the contradiction between azimuth antenna size (or azimuth resolution) and radar detection range in near space high speed platform SAR/MTI system is analyzed. The technique of multiple -input multiple-output,which can be used to resolve the contradiction, is used in SAR imaging mode. Subsequently, a novel space-time equivalent reconstruction method, which can get a high Performance of detection and location in MTI mode, is presented.

[1]  Gerhard Krieger,et al.  Multidimensional waveform encoding for synthetic aperture radar remote sensing , 2007 .

[2]  J. Tabrikian,et al.  Target Detection and Localization Using MIMO Radars and Sonars , 2006, IEEE Transactions on Signal Processing.

[3]  G. Krieger,et al.  Multidimensional waveform encoding for spaceborne synthetic aperture radar systems , 2007, 2007 International Waveform Diversity and Design Conference.

[4]  Werner Wiesbeck,et al.  SAR with digital beamforming on receive only , 1999, IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293).

[5]  Alex B. Gershman,et al.  Space-time processing for MIMO communications , 2005 .

[6]  Gerhard Krieger,et al.  Multidimensional radar waveforms a new paradigm for the design and operation of highly performant spaceborne synthetic aperture radar systems , 2007, 2007 IEEE International Geoscience and Remote Sensing Symposium.

[7]  David Gesbert,et al.  From theory to practice: an overview of MIMO space-time coded wireless systems , 2003, IEEE J. Sel. Areas Commun..

[8]  R. Giret,et al.  A study of a 3D-SAR concept for a millimeter wave imaging radar onboard an UAV , 2004, First European Radar Conference, 2004. EURAD..

[9]  A. Brenner,et al.  ARTINO: A New High Resolution 3D Imaging Radar System on an Autonomous Airborne Platform , 2006, 2006 IEEE International Symposium on Geoscience and Remote Sensing.

[10]  Ruliang Yang,et al.  High Resolution, Wide Swath SAR using Sub-aperture Sub-band Technique , 2006, 2006 CIE International Conference on Radar.

[11]  Gabriel Thomas,et al.  Chaotic signals for wideband radar imaging , 2002, SPIE Defense + Commercial Sensing.

[12]  Rick S. Blum,et al.  MIMO radar: an idea whose time has come , 2004, Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509).

[13]  M. A. Brown,et al.  Wide-swath SAR , 1992 .

[14]  Gerhard Krieger,et al.  High Resolution Wide Swath SAR Imaging with Digital Beamforming - Performance Analysis, Optimization, System Design , 2006 .