Volume 39 Issue 4
Jul.  2019
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LAN Ailan, YAN Jingye, ZHAO Fei, WU Lin. Approach to Suppress Range Sidelobe by the Point Target Response[J]. Journal of Space Science, 2019, 39(4): 530-536. doi: 10.11728/cjss2019.04.530
Citation: LAN Ailan, YAN Jingye, ZHAO Fei, WU Lin. Approach to Suppress Range Sidelobe by the Point Target Response[J]. Journal of Space Science, 2019, 39(4): 530-536. doi: 10.11728/cjss2019.04.530

Approach to Suppress Range Sidelobe by the Point Target Response

doi: 10.11728/cjss2019.04.530
  • Received Date: 2018-06-07
  • Rev Recd Date: 2019-01-07
  • Publish Date: 2019-07-15
  • Range sidelobes are induced by pulse compression, which may contaminate effective signals. In order to reduce the impact from range sidelobes, an approach based on deconvolution is proposed. In this method, the radar system response is assumed to be known. In practice, a point (or quasi-point) target response can be used as system response. Therefore, the point target response of a radar system must be obtained firstly. In this paper, how to pick up a quasi-point target response from a large number of echoes as the system response is proposed. Then process echoes by deconvolution to eliminate the impact of range sidelobes. In order to prove the validity of the sidelobe suppression method, Hainan Coherent Phased Array Radar (HCOPAR) is taken as an example to show how to suppress range sidelobes by the point target response. And the results show that range sidelobes can be decreased about 5dB, which illustrate the ability of the method. Moreover, compared to the typical methods, this approach is simpler and easier to apply.

     

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