Moving target imaging by both Ka-band and Ku-band high-resolution radars

Yunhua Zhang; Wenshuai Zhai; Xiangkun Zhang; Xiaojin Shi; Xiang Gu; Jingshan Jiang

doi:10.1117/12.897428

26 October 2011 Moving target imaging by both Ka-band and Ku-band high-resolution radars

Yunhua Zhang, Wenshuai Zhai, Xiangkun Zhang, Xiaojin Shi, Xiang Gu, Jingshan Jiang

Proceedings Volume 8179, SAR Image Analysis, Modeling, and Techniques XI; 81790R (2011) https://doi.org/10.1117/12.897428
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

The experimental work on testing the wide-band transmitters and receivers developed for Ka-band and Ku-band radar systems, as well as the signal processing algorithms were introduced. A city light-railway train was selected as the imaged target. The wide-band transmitters and receivers were designed based on the stepped-frequency chirp signal (SFCS) with 2GHz bandwidth synthesized. The Super-SVA technique was used to deal with the case of transmitting SFCS with band gaps between subchirps for purpose of achieving the same bandwidth using as less as possible subpulses. Both Ka-band and Ku-band high-resolution radar images were obtained, which show that Ka-band images are much clear than that of Ku-band as we expect. There are two reasons to explaining this, one reason is due to the electromagnetic scattering of train itself are different for Ka-band and Ku-band frequencies, and the other reason is due to the interactions, i.e. multi-reflection or multi-scattering between the train and the side metal fences or the lamp post are different.

Citation Download Citation

Yunhua Zhang, Wenshuai Zhai, Xiangkun Zhang, Xiaojin Shi, Xiang Gu, and Jingshan Jiang "Moving target imaging by both Ka-band and Ku-band high-resolution radars", Proc. SPIE 8179, SAR Image Analysis, Modeling, and Techniques XI, 81790R (26 October 2011); https://doi.org/10.1117/12.897428

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