THE EFFECT OF MASKED SIGNAL ON THE PERFORMANCE OF GNSS CODE TRACKING SYSTEM

• 발행기관: 한국항해항만학회
• 저자명: Chung-Liang Chang Jyh-Ching Juang
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2006년도 International Symposium on GPS/GNSS Vol.2, 1~6쪽, 전체 6쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2006.10.25

영문 초록

The main purpose of this paper is to describe the code tracking performance of a non-coherent digital delay lock loop (DLL) or coherent DLL while tracking GNSS signal in the presence of signal masking. The masking effect is usually caused by buildings that obscure the signal in either a periodic or random manner. In some cases, ideal masking is used to remove random or periodic interference. Three types of the masked signal are considered - no masking, periodic masking, and random masking of the signal input to the receiver. The mean time to lose lock (MTLL) of the code tracking loop are evaluated, and some numerical result and simulation results are reported. Finally, the steady-state tracking errors on the performance of the tracking loop in interference environment are also presented.

목차

1. Introduction

2. Code Tracking Loop Description

3. Performance Analysis and Simulation Results

4. Conclusion

키워드

delay lock loop mean time to lose lock masked signal GNSS