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http://dx.doi.org/10.5302/J.ICROS.2014.14.0064

Cramer-Rao Lower Bound of Effective Carrier-to-noise Power Ratio Estimation for a GPS L1 C/A Signal under Band-limited White Noise Jamming Environments  

Yoo, Seungsoo (Division of Electronics Engineering, Konkuk University)
Yeom, Dong-Jin (Agency for Defense Development)
Jee, Gyu-In (Division of Electronics Engineering, Konkuk University)
Kim, Sun Yong (Division of Electronics Engineering, Konkuk University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.20, no.8, 2014 , pp. 890-894 More about this Journal
Abstract
In this paper, we derive the CRLB (Cramer-Rao Lower Bound) of effective carrier-to-noise power ratio ($C/N_0$) estimation for a GPS (Global Positioning System) L1 C/A (Coarse/Acquisition) signal under band-limited white noise jamming environments. The quality of a received GPS signal is commonly described in terms of its $C/N_0$, implying that the noise is white and thus can be described by scalar noise density. However, if some intentional interference is received to a victim GPS receiver, then the $C/N_0$ is no longer the efficacious performance indicator. The correct and straightforward measurement to analyze the receiving situation is the effective $C/N_0$. In this paper, we consider a band-limited white noise jamming whose bandwidth is 2MHz and is the same as one of the first null-to-null bandwidth of the GPS L1 C/A signal.
Keywords
GNSS; GPS; band-limited white noise jamming; carrier-to-noise power ratio; Cramer-Rao lower bound; effective carrier-to-noise power ratio;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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