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Chang Y.,Electronic Science and Engineering School | Li Y.,Electronic Science and Engineering School | Wang X.,Electronic Science and Engineering School | Xiao S.,Electronic Science and Engineering School
International Conference on Signal Processing Proceedings, ICSP | Year: 2010

A new method of target detection for polarimetric radar in the presence of strong active jamming is proposed. Based on analysis of the polarization characterizations of the signals received by polarimetric radar, the target detection is achieved through testing on the polarization information. Comparing with the traditional method of target detection made in timefrequency domain, the detection performance of the new method is improved because the influence of the strong active jamming is avoided. The performance of the new method is analyzed by simulation. Its validity is verified through outdoor experiment carried out by X-band polarimetric radar. © 2010 IEEE. Source


Dai H.,Electronic Science and Engineering School | Wang X.,Electronic Science and Engineering School | Luo J.,Electronic Science and Engineering School | Li Y.,Electronic Science and Engineering School | Xiao S.,Electronic Science and Engineering School
IEEE Transactions on Antennas and Propagation | Year: 2012

Antenna polarization states always vary with scan direction. Here this phenomenon is called spatial polarization characteristic (SPC) of antenna. Based on the single polarized radar antenna, by sufficiently utilizing of the inherent polarization property of antenna (i.e. the property that polarization state is not a constant but a function of antenna's spatial scanning direction), a novel polarization scattering matrix (PSM) measurement method is established. This method has the following advantages: (i) It does not need dual orthogonal polarization channels; (ii) the PSM of target can be obtained just by using the prior knowledge of SPC and by improving the signal processing mode of received radar signal. The modern radar systems can make use of this property in its measurement of target polarization scattering property in the searching or angle tracking stage. © 2006 IEEE. Source

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