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《Journal of Data Acquisition and Processing》 2011-04
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IF Receiving Method for Pulsed Coherent Radar

Cai Fei1,Fan Hongqi1,Lin Hua2,Fu Qiang1(1.ATR Lab,National University of Defense Technology,Changsha,410073,China;2.Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang,621900,China)  
Burst receiving and pulse receiving are two commonly used IF sampling receiving methods in the pulsed coherent radar system,and it is crucial to select one method properly in the design of a radar digital receiver.Firstly,the difference between the two methods and their equivalent conditions are obtained,and the influence on the performance of IF sampling is analyzed when the conditions are dissatisfied.Secondly,taking the implementation of digital IF receiver based on FPGA as an example,the constraint conditions of the two methods are analyzed at the system implementation point of view.Finally,a selecting scheme of the two methods in pulsed coherent radar is proposed in association with the constraint conditions and the system parameters.The conclusions are meaningful both for the design of digital IF receiver and for the selection of system parameters in pulsed coherent radar.
【Fund】: 国防科技重点实验室基金(9140C08005011009)资助项目
【CateGory Index】: TN957.5
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