Journal of Terahertz Science and Electronic Information Technology , Volume. 20, Issue 4, 325(2022)
Phase estimation and synchronization for distributed aperture satellite radar
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.
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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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Received: Apr. 27, 2020
Accepted: --
Published Online: Aug. 12, 2022
The Author Email: Xi LUO (matrix02061016@126.com)