Unambiguous Tracking of BOC Signals Using Coherent Combination of Dual Sidebands

作者：Feng, Tian^*; Kai, Zhang; Liang, Cheng

来源：IEEE Communications Letters, 2016, 20(8): 1555-1558.

DOI：10.1109/LCOMM.2016.2569520

• BOC
• unambiguous tracking
• low-computation tracking
• differential carrier phase
• high precision
• GNSS

The ionospheric effect breaks the correlation of carrier phases between dual sidebands of binary offset carrier (BOC) signal. Thus, the conventional sideband processing algorithms usually perform non-coherent combination of the dual sidebands, which degrades the tracking accuracy and sensitivity. In order to improve the accuracy, this letter proposes a computationally effective tracking algorithm that involves coherent combination of BOC dual sidebands. The tracking loop of the proposed algorithm includes a novel design of a subcarrier discriminator using the differential carrier phase of dual sidebands. Simulation results show that proposed algorithm achieves simultaneous high precision and low computational complexity for high-order BOC.

• 出版日期2016-8
• 单位中国人民解放军国防科学技术大学