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Spread Doppler clutter suppression approach in FRFT field for hybrid skysurfacewave radars

ZHAO Zhiguo1,2, XIAO Hui1   

  1. (1. Air Force Early Warning Academy, Wuhan 430019, China；
    2. Unit 93534 of the PLA, Tianjin 301700, China)
  • Online:2014-12-08 Published:2010-01-03

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Abstract:

The hybrid skysurfacewave radar (HSSWR) system, with 1D linear array antennas, cannot suppress multipath spread Doppler clutter (SDC), which restricts its practical application in ship targets detection. To resolve this problem,based on the difference in the concentration of SDC and stable ocean clutter in fractional Fourier transform (FRFT) field, an SDC suppression approach on the basis of FRFT is proposed. Finally, theoretical analysis and the results of simulations indicate its effectiveness.

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