Abstract：Signal occlusion is one of the main difficulties in the application of the global navigation satellite system (GNSS) to the positioning of spinning objects. Due to the directional antenna, the conventional tracking algorithm based on the assumption of slow amplitude variation is invalid. This paper proposes an anti-rotation GNSS tracking algorithm based on the joint processing of double antennas, which can adjust the parameters of the blocked channel according to the visual one to ensure that the loop will not lose lock when the signal is reproduced. Through the joint processing of measurement from the channels of double antennas, the differential demodulation of data bits is realized. Tests use a turntable to create a spinning environment. This method can complete the synchronization of the spinning signal. Moreover, the tracking performance, data demodulation ability, and positioning accuracy are better than that of the scalar tracking algorithm of a single antenna with discontinuous reception, greatly improving the robustness.
陆尤明, 刘刚, 崔晓伟, 陆明泉. 基于双天线联合的GNSS信号抗旋转跟踪算法[J]. 清华大学学报（自然科学版）, 2021, 61(9): 1015-1024.
LU Youming, LIU Gang, CUI Xiaowei, LU Mingquan. Anti-rotation GNSS tracking algorithm based on joint processing of double antennas. Journal of Tsinghua University(Science and Technology), 2021, 61(9): 1015-1024.
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