Antenna Directing Synchronization for Bistatic Synthetic Aperture Radar Systems

Bistatic synthetic aperture radar (BiSAR) operates with a separate transmitter and receiver that are mounted on separate platforms. This spatial separation provides several operational advantages like reduced vulnerability for military applications and increased radar cross section. However, efficient spatial synchronization (antenna direction synchronization), time synchronization, and phase synchronization must be ensured for BiSAR systems. A literary search reveals that BiSAR synchronization, especially spatial synchronization, is still a technical challenge, and little work has been reported. As such, the impact of antenna directing synchronization errors including range dimension and azimuth dimension are analyzed with statistical models. Simulation results show that efficient spatial synchronization compensation is required for BiSAR high-resolution imaging. Hence, an antenna directing synchronization approach with multi-antenna on receive is proposed.

[1]  Didier Massonnet,et al.  Capabilities and limitations of the interferometric cartwheel , 2001, IEEE Trans. Geosci. Remote. Sens..

[2]  V. Barousis,et al.  A Stochastic Beamforming Algorithm for ESPAR Antennas , 2008, IEEE Antennas and Wireless Propagation Letters.

[3]  Haifeng Huang,et al.  The comparison of attitude and antenna pointing design strategies of noncooperative spaceborne bistatic radar , 2005, IEEE International Radar Conference, 2005..

[4]  El-Sayed Abdel-Salam Gadallah,et al.  Global Positioning System (GPS) Receiver Design For Multipaths Mitigation , 1998 .

[5]  R. Feick,et al.  Measured Improvement of Indoor Coverage for Fixed Wireless Loops With Multiple Antenna Receivers , 2008, IEEE Antennas and Wireless Propagation Letters.

[6]  H. D. Griffiths.  Bistatic Radar: Emerging Technology Edited by M. Cherniakov John Wiley and Sons, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, UK. 2008. 394pp. Illustrated. £80. ISBN 978-0-470-02631-1. , 2008 .

[7]  Antonio Moccia,et al.  Attitude and antenna pointing design of bistatic radar formations , 2003 .

[8]  Wen-Qin Wang,et al.  A Technique for Jamming Bi- and Multistatic SAR Systems , 2007, IEEE Geoscience and Remote Sensing Letters.

[9]  Zhang Zhi-zhong.  Bistatic Synthetic Aperture Radar , 2005 .

[10]  Matthias Weiss,et al.  Determination of baseline and orientation of platforms for airborne bistatic radars , 2005, Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05..

[11]  Gerhard Krieger,et al.  First Results of a Joint Bistatic Airborne SAR Experiment , 2003 .

[12]  B. Jeffs,et al.  Efficiencies and System Temperature for a Beamforming Array , 2008, IEEE Antennas and Wireless Propagation Letters.

[13]  D.C. Jenn,et al.  Transmission Equation for Multiple Cooperative Transmitters and Collective Beamforming , 2008, IEEE Antennas and Wireless Propagation Letters.

[14]  Wen-qin Wang.  GPS-Based Time & Phase Synchronization Processing for Distributed SAR , 2009, IEEE Transactions on Aerospace and Electronic Systems.