An Unambiguous Tracking Scheme Using Partial-Pulses for BOC Signals
Y. Lee, Samsung Electronics ; S.R. Lee, Department of Information and Electronics Engineering ; S. Yoo, Department of Electronics Engineering ; H. Liu, School of Electrical Engineering and Computer Science, United States ; S. Yoon, College of Infomation and Communication Engineering
Journal of Applied Research and Technology Volume 12, Number 6, ISSN 1665-6423 Publisher: Elsevier Ltd
The recent researches on the tracking of binary offset carrier (BOC) modulated signals have been studied focusing on resolving the ambiguity problem caused by the multiple side-peaks in BOC autocorrelation. In this paper, we propose a novel unambiguous BOC tracking scheme with an improved tracking performance by using partial-pulses of BOC signals. Firstly, we observe that a sub-carrier consists of two partial rectangular pulses referred to as partial-pulses, and then, generate multiple partial-correlations composing the BOC autocorrelation. Finally, a correlation function with no side-peak is constructed by combining the partial-correlations, and then, a delay lock loop employing the proposed unambiguous correlation function adjusts the phase of the local BOC signals. From numerical results, it is confirmed that the proposed scheme provides a better tracking performance than the conventional schemes in terms of the tracking error standard deviation.
Lee, Y., Lee, S.R., Yoo, S., Liu, H. & Yoon, S. (2014). An Unambiguous Tracking Scheme Using Partial-Pulses for BOC Signals. Journal of Applied Research and Technology, 12(6), 1103-1114. Elsevier Ltd.