• Journal of Terahertz Science and Electronic Information Technology
  • Vol. 20, Issue 4, 325 (2022)
LUO Xi1、2、*, GUO Lixin1, SHANG She2, SONG Dawei2, LI Xiaojun2, and LIU Wei1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.11805/tkyda2020176 Cite this Article
    LUO Xi, GUO Lixin, SHANG She, SONG Dawei, LI Xiaojun, LIU Wei. Phase estimation and synchronization for distributed aperture satellite radar[J]. Journal of Terahertz Science and Electronic Information Technology , 2022, 20(4): 325 Copy Citation Text show less

    Abstract

    Distributed Aperture Fully Coherent (DAFC) radar is a kind of new and overturning technology, which can achieve synthetized signal processing for N 3 Signal to Noise Ratio (SNR) gain and break the limit of power-aperture product of radar. Due to the long distance between units of the satellite radar system, the wireless phase estimation and synchronization become one of the key problems. A theoretical model of distributed radar phase synchronization is established in this paper. A new phase synchronization method in the circular way is also proposed based on phase error analysis. Compared with Principal-Subordinate method, it eliminates the restriction on center junction in DAFC, and improves the anti-interference ability and the robustness of the algorithm. The simulation results validate the effectiveness of the proposed method.
    LUO Xi, GUO Lixin, SHANG She, SONG Dawei, LI Xiaojun, LIU Wei. Phase estimation and synchronization for distributed aperture satellite radar[J]. Journal of Terahertz Science and Electronic Information Technology , 2022, 20(4): 325
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