An Orthogonal Waveform for Fully Polarimetric MIMO-SAR

Rommel T, Younis M, Krieger G (2014)

Publication Type: Conference contribution

Publication year: 2014


Publisher: IEEE

Edited Volumes: IEEE National Radar Conference - Proceedings

Series: Conference Program

Pages Range: 887-891

Conference Proceedings Title: IEEE Radar Conference (RadarCon)

Event location: Cincinnati, OH US

ISBN: 9781479920341


DOI: 10.1109/RADAR.2014.6875716


Synthetic aperture radar (SAR) with multiple transmit and receive channels (MIMO-SAR) has a higher flexibility and an improved efficiency compared to a conventional SAR system with a single channel. The multiple receive channels can be used, among other things, to increase the swath width at constant azimuth resolution or to suppress spatial interferences. However, multiple transmit channels, which transmit simultaneously in the same frequency band provide currently a challenge. Therefore, in this paper a modified Chirp waveform is introduced which extends in combination with digital beam-forming (DBF) on receive the orthogonality condition to another degree of freedom, thus allowing perfect orthogonality. Furthermore, the hardware design of the MIMO-Radar Demonstrator, a multi-channel measurement system for radar and SAR applications is depicted. The shown measurement result demonstrates the possibility of obtaining all four parameters of the scattering matrix at the same time by transmitting orthogonal waveforms in different polarizations.

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Rommel, T., Younis, M., & Krieger, G. (2014). An Orthogonal Waveform for Fully Polarimetric MIMO-SAR. In IEEE Radar Conference (RadarCon) (pp. 887-891). Cincinnati, OH, US: IEEE.


Rommel, Tobias, Marwan Younis, and Gerhard Krieger. "An Orthogonal Waveform for Fully Polarimetric MIMO-SAR." Proceedings of the 2014 IEEE Radar Conference, RadarCon 2014, Cincinnati, OH IEEE, 2014. 887-891.

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