Correlation Combination Ambiguity Removing Technology for Acquisition of Sine-Phased BOC(kn,n) Signals

被引：3

作者：

LIU Wen ^{[1
]}

XI Yue ^{[1
]}

DENG Zhongliang ^{[1
]}

JIAO Jichao ^{[1
]}

YIN Lu ^{[1
]}

机构：

[1] Laboratory of Intelligent Communication,Navigation and Micro/Nano-Systems,Beijing University of Posts and Telecommunications

来源：

中国通信 | 2015年 / 12卷 / 04期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

GNSS; unambiguous acquisition; sine-phased BOC(kn; n); combination of correlation functions;

D O I：

暂无

中图分类号：

TN96.1 [];

学科分类号：

080401 ; 081105 ; 0825 ;

摘要：

Binary Offset Carrier(BOC) has been chosen as one of modulation methods in the future Global Navigation Satellite Systems(GNSS). Even though BOC signals can bring several advantages such as better track performance and higher positioning accuracy, there is a drawback that the autocorrelation functions have multiple side-peaks if BOC modulation is adopted. This characteristic will lead to false acquisition and the tracking loop will be locked in false phase point. The proposed Correlation Combination Ambiguity Removing Technology(CCART) cancelled all the side-peaks of the sine-phased BOC(kn,n) signals completely by making use of two kinds of correlation functions. Two kinds of sub-correlation functions were combined separately and then final correlation function without side-peaks was acquired. The simulation results are given and compared with other techniques. It is shown that acquisition will not be degraded with the increase of k.

引用

页码：86 / 96

页数：11