Unambiguous Tracking Method for Alternative Binary Offset Carrier Modulated Signals Based on Dual Estimate Loop

作者：Ren Jiawei^*; Jia Weimin; Chen Huihua; Yao Minli

来源：IEEE Communications Letters, 2012, 16(11): 1737-1740.

DOI：10.1109/LCOMM.2012.092112.121853

• Code tracking loop
• global navigation satellite systems (GNSS)
• alternative binary offset carrier (AltBOC) modulation
• unambiguous tracking

We propose an unambiguous tracking method for Alternative Binary Offset Carrier (AltBOC) modulated signals based on the Dual Estimate Tracking (DET) loops. The proposed method employs a combined PRN code and a pure cosine signal which can be easily implemented in the hardware to make DET loops available to the complicated AltBOC signal structure. The two dimensional correlation function for AltBOC is derived, and an unambiguous delay estimate is deduced according to the correlation function. Simulation results reveal that the proposed method performed better in tracking performance than the traditional unambiguous tracking methods.

• 出版日期2012-11