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http://dx.doi.org/10.7840/kics.2015.40.12.2520

Alternative Scheme of INS-Dependent Positioning for Relative Navigation without GRUs  

Kim, Ki-hyoung (Department of Computer Engineering, Ajou University)
Lee, Kyu-man (Department of Computer Engineering, Ajou University)
Lim, Jae-sung (Department of Computer Engineering, Ajou University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.40, no.12, 2015 , pp. 2520-2527 More about this Journal
Abstract
Position information is important to carry out military operations. In general, GPS is used to estimate position. However, GPS is vulnerable to jamming due to the low received signal strength, therefore GPS can be easily jammed. The relative navigation is an auxiliary navigation system defined in JTIDS. When GPS is jammed, the relative navigation requires ground reference units on the ground to operate accurately. If the ground reference unit does not exist, nodes operated by the relative navigation depend on the inertial navigation system to identify their position. However, this positioning scheme based on only INS causes accumulative position error, therefore the nodes cannot identify their position accurately for a long time. In this paper, we propose an alternative to reduce position error generated by depending inertial navigation system. In order to verify that the performance of proposed scheme is better than that of the existing scheme, various simulations are conducted.
Keywords
GPS Jamming; INS; JTIDS; Relative Navigation; GRU; TOA;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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