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http://dx.doi.org/10.11003/JPNT.2014.3.2.045

Jammer Identification Technique based on a Template Matching Method  

Jin, Mi Hyun (Department of Electronics Engineering, Chungnam National University)
Yeo, Sang-Rae (Department of Electronics Engineering, Chungnam National University)
Choi, Heon Ho (Department of Electronics Engineering, Chungnam National University)
Park, Chansik (Department of Electronics Engineering, Chungbuk National University)
Lee, Sang Jeong (Department of Electronics Engineering, Chungnam National University)
Publication Information
Journal of Positioning, Navigation, and Timing / v.3, no.2, 2014 , pp. 45-51 More about this Journal
Abstract
GNSS has the disadvantage of being vulnerable to jamming, and thus, the necessity of jamming countermeasure techniques has gradually increased. Jamming countermeasure techniques can be divided into an anti-jamming technique and a jammer localization technique. Depending on the type of a jammer, applicable techniques and performance vary significantly. Using an appropriate jamming countermeasure technique, the effect of jamming on a GNSS receiver can be attenuated, and prompt action is enabled when estimating the location of a jammer. However, if an inappropriate jamming countermeasure technique is used, a GNSS receiver may not operate in the worst case. Therefore, jammer identification is a technique that is essential for proper action. In this study, a technique that identifies a jammer based on template matching was proposed. For template matching, analysis of a received jamming signal is required; and the signal analysis was performed using a spectral correlation function. Based on a simulation, it was shown that the proposed identification of jamming signals was possible at various JNR.
Keywords
spectral correlation; template matching; jammer identification;
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