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http://dx.doi.org/10.9766/KIMST.2016.19.5.582

Study on Multi-Mode Monopulse Signal Processing System Providing Optimal Time Delay under High Doppler Condition  

Lee, Jaemoon (The 2nd Research and Development Institute, Agency for Defense Development)
Lim, Jaesung (Department of Computer Engineering, Ajou University)
Ahn, Huisoo (Department of Communication, LIG Nex1)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.19, no.5, 2016 , pp. 582-589 More about this Journal
Abstract
Multi-mode monopulse system is widely used for satellite terminal like UAV because of high tracking accuracy and low size/weight profile. In order to calculate tracking error, Multi-mode monopulse system utilizes high-order mode signal, and it should have enough C/N(carrier to noise) level therefore tracking system needs narrow band filtering of received satellite beacon signal as much as possible. However, UAV suffers for beacon frequency drift derived from Doppler effect due to satellite figure 8 movement and UAV maneuvering. Therefore wideband signal processing needs to be considered in advance for exact doppler compensation and consequent time delay. In this paper, we propose the multi-stage Digital Signal processing system for beacon signal, which could minimize the signal delay under high Doppler and low C/N condition.
Keywords
DSP; Doppler Compensation; Narrow Filtering; Time-Delay; Multi-Mode Monopulse;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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