Research of Weak GNSS Signals Tracking Technique Based on Kalman Filtering

被引：0

作者：

Lai, Guangfeng ^{[1
]}

Luo, Kui ^{[1
]}

Gu, Wenfei ^{[1
]}

Sun, Yuhua ^{[1
]}

Li, Yangzhi ^{[1
]}

机构：

[1] PLA Univ Sci & Technol, Inst Commun Engn, Nanjing 210007, Jiangsu, Peoples R China

来源：

2011 INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SYSTEMS SCIENCE AND ENGINEERING (ICESSE 2011), VOL 2 | 2011年

关键词：

High sensitivity; carrier loop; kalman filtering;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nowadays, the technique of the high sensitivity GNSS receiver has been widely studied in the world. This paper firstly introduced the traditional tracking structure briefly, the performance of the carrier loop was pointed out to be the bottleneck of the traditional structure for the weak environment use. Next, a high dynamic carrier tracking technique based on Kalman filtering theory was introduced, with its performance and defect analyzed. In the end, an improved algorithm was proposed, and signals with its C/N0 as low as 26db.Hz can be tracked steadily by the improved algorithm, the performance of the improved algorithm was better than the traditional algorithm.

引用

页码：33 / 38

页数：6