Antenna Tracking Techniques for Long Range Air-to-Ground Communication Systems Using a Monopulse Method
- Authors
- Kim, Jaesin; Lee, Jaemoon; Lee, Inkyu
- Issue Date
- 2020
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Estimation; Azimuth; Radar tracking; Receivers; Downlink; Wideband; Air-to-ground communication systems; antenna tracking; estimation filter; monopulse
- Citation
- IEEE ACCESS, v.8, pp.166442 - 166449
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE ACCESS
- Volume
- 8
- Start Page
- 166442
- End Page
- 166449
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/59107
- DOI
- 10.1109/ACCESS.2020.3022932
- ISSN
- 2169-3536
- Abstract
- In this paper, we consider long range air-to-ground (AG) communication systems which support airborne platforms including unmanned aerial vehicles (UAVs) for real-time applications. In this system, we design tracking techniques for directional ground antennas which enable reliable AG communication regardless of dynamic maneuvers of the UAV. We apply a simple monopulse method and a fixed gain filtering algorithm to develop a single channel monopulse tracking system with an angular estimation filtering, which exploits a downlink signal without requiring a dedicated channel. Through the AG communication prototype and realistic flight tests, we evaluate the tracking accuracy performance at the distance of hundreds of kilometers and demonstrate the auto-tracking capability of the angular estimation filter. The flight test results show that the tracking accuracy of our proposed system is sufficient for long range transmission with a narrow beam antenna. Also, in the absence of the downlink signal, it is observed that the ground prototype can resume the monopulse tracking procedure, and successfully maintains the tracking accuracy.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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