Doppler characteristics analysis of forward-looking SAR in helicopters

DOI

10.2991/icmmct-16.2016.204How to use a DOI?

Keywords

Doppler characteristics; forward-looking SAR; bistatic.

Abstract

As limited by the size and load, multi-array antenna can not be installed in the helicopters to achieve forward-looking SAR imaging. A "bistatic" forward-looking imaging program is proposed, which used a satellite to carry illuminator and a helicopter to carry receiver. Then the forward-looking SAR geometry model and echo signal model are built. At last, the Doppler features are deeply analyzed, especially the variation of the Doppler frequency center, Doppler frequency rate and Doppler frequency third term when depression angle and receiver altitude change. The results provide a theoretical support for forward-looking SAR imaging algorithm and azimuth resolution research.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yuhui Sun
AU  - Jingen Wang
AU  - Haibing Wu
PY  - 2016/03
DA  - 2016/03
TI  - Doppler characteristics analysis of forward-looking SAR in helicopters
BT  - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology
PB  - Atlantis Press
SP  - 1030
EP  - 1034
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-16.2016.204
DO  - 10.2991/icmmct-16.2016.204
ID  - Sun2016/03
ER  -