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Research on keystone formatting based on non-baseband interpolation

Journal of Systems Engineering and Electronics 2010年第4期21卷 562-565页

作者： Yufei Cao Xiaoguang Qu Peikang Huang Beijing Institute of Radio Measurement Beijing 100039 R R. China Defense Technology Academy of China Aerospace Science & Industry Corporation Beijing 100039 R R. China

When there is Doppler ambiguity number mutation,keystone formatting is no longer valid because of integration performance deterioration and false velocity estimation.A novel keystone formatting method based on non-baseband interpolation is *** has a different half blind velocity range comparing with normal keystone ***,there is non-superposition between half-blind-velocity-range of keystone formatting based on baseband and that of non-baseband *** a synthesizing keystone formatting is proposed to avoid the half-blind-velocity *** results of the proposed method show that integration deterioration and velocity estimation falsity can be eliminated effectively.

关键词： keystone formatting half-blind-velocity coherent integration velocity estimation.

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A novel STAP method for the detection of fast air moving targets from high speed platform

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Science China(Information Sciences) 2012年第6期55卷 1259-1269页

作者： WU RenBiao 1,2,JIA QiongQiong 1 & LI Hai 1 1 Tianjin Key Laboratory for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China 2 Intelligent Information Institute of ATR Lab,Shenzhen University,Shenzhen 518060,China Tianjin Key Laboratory for Advanced Signal Processing Civil Aviation University of China Tianjin China Intelligent Information Institute of ATR Lab Shenzhen University Shenzhen China

Space-time adaptive processing (STAP) is an effective method for detecting moving target in airborne/spaceborne ***,the detection of fast air moving targets from high speed platform is challenged by the range walk of both the clutter and moving *** is well known that keystone formatting can be used to compensate for the range walk of multiple moving targets simultaneously without using the knowledge of the motion ***,in the presence of serious Doppler ambiguity of fast air moving targets,distribution of the clutter will be affected by the keystone formatting matched to the ambiguity number of targets,and as a result the STAP performance will *** this paper,a novel STAP method is proposed for the detection of fast air moving targets from high speed platform,which can deal with the range walk of both clutter and *** of the new method is verified via simulation examples.

关键词： airborne/spaceborne radar keystone formatting space-time adaptive processing (STAP) moving target detection

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