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| Investigation on of Polarization Filtering Scheme to Suppress GSM Interference in Radar Main Beam |
| Ren Bo①② Shi Long-fei①② Wang Hong-jun③ Li Yong-zhen①② Wang Guo-yu①② |
①(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China)
②(School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China)
③(Wuhan Binhu Electronics Company of Limited Liability, Wuhan 430077, China) |
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Abstract A polarization filtering scheme is employed to resolve interference from GSM base station to the radar in practice. By analyzing the existing Auto Polarization Cancellation (APC) algorithm, a new filtering algorithm based on the optimal reception of partially polarized signal is proposed. The polarization Stokes vector of GSM signal is estimated, and then the optimal receptive polarization is calculated on the principle of the minimum interference power. The effectiveness of polarization filter is finally validated by the experiment of interference suppression. Compared with the existing algorithm, the proposed method not only achieves good performance in anti-interference, but needs shorter time in weight convergence, and it is more stable as well.
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Received: 04 March 2013
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Corresponding Authors:
Ren Bo
E-mail: rb410@139.com
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2014, Vol. 36 
