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http://dx.doi.org/10.7840/kics.2012.37C.9.811

Development of a GNSS Signal Generator Considering Reception Environment of a Vehicle  

Cho, Sung Lyong (충남대학교 전자공학과)
Park, Chansik (충북대학교 전자정보대학 전자공학전공)
Hwang, Sang Wook (충남대학교 전자공학과)
Choi, Yun Sub (충남대학교 전자공학과)
Lee, Ju Hyun (충남대학교 전자공학과)
Lee, Sang Jeong (충남대학교 전자공학과)
Pack, Jeong-Ki (충남대학교 전파공학과)
Lee, Dong-Kook (국방과학연구소)
Jee, Gyu-In (건국대학교 전자정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37C, no.9, 2012 , pp. 811-820 More about this Journal
Abstract
GNSS signal is vulnerable to jamming signal because of well-known signal structure and weak signal power. For these reasons, the need for analysis of jamming effects and anti-jamming techniques of is increasing. In this paper, a GNSS signal generator is designed which includes a radio wave propagation model for six kind of tactical environments and a body masking model for the reception environment of a vehicle. The radio wave propagation model for downtown, rural, forest, coastline, waste land and snow or ice area is designed using two-ray model. The body masking model is designed the effect which the antenna is affected by the reception environment of a vehicle and radiation pattern from a user configuration. The performance of generated signals from the GNSS signal generator considering reception environment of a vehicle is evaluated by a commercial GPS L1 receiver(NordNav) in normal and jamming environment. Also, the generated GNSS signal is compared to a commercial GPS L1 H/W based RF signal generator(STR4500). The results show that the designed GNSS signal generator in a normal environment compared to the same navigation performance. In jamming environment, it is shown that the body masking effect and GNSS signal acquisition and tracking loss in compliance with the jamming signal are precisely working in the reception environment of a vehicle.
Keywords
GNSS; Signal Generator; Body Masking Effect; Radio Propagation Model; Jamming;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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