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      Feasibility Study on Passive-radar Detection of Space Targets Using Spaceborne Illuminators of Opportunity

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          Abstract

          Space target surveillance generally uses active radars. To take full advantage of passive radars, the idea of using spaceborne illuminators of opportunity for space target detection is presented in this paper. Analysis of the detectable time and direct wave suppression shows that passive radar using spaceborne illuminators of opportunity can effectively detect a Low-Earth-Orbit (LEO) target. Meanwhile, Ku and L band bi-static radar cross section of passive radars that use spaceborne illuminators of opportunity are presented by simulation, providing the basis of choosing space target forward scatter. Finally the key parameters, mainly system gain, accumulation time and radiation source selection are studied. Results show that system size using satellite TV signals as illuminators of opportunity is relatively small. These encouraging results should stimulate the development of passive radar detection of space targets using spaceborne illuminators of opportunity.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 January 2015
          : 3
          : 6
          : 711-719
          Affiliations
          [1 ] School of Electronics and Information Engineering, Anhui University
          [2 ] Nanjing Electronic Technique Institude
          Article
          37e81e97550542a7bd2d9ff346c68435
          10.12000/JR14080

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

          Remote sensing, Electrical engineering

          Passive radar, Detectable time, GPS, Satellite TV, Space target

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