Design of IP Satellite Communication for Real Time UAV Telemetry Case: Japan – Indonesia Link

Abstract

This paper presents the design of real-time communication for UAV using an L-band geostationary satellite. The data latency from UAV to GCS and backward are analyzed to broaden the quality of its communication and real-time data. The major data that is used in UAV consists of telemetry, command, and control. Then, all data are passed on a satellite IP network using VPN and UDP protocol link. Four-parameter analyses such as flight mode, attitude response, waypoint response, and joystick response are applied when evaluating data results. The communication link designed in this study is the connectivity between GCS located at Chiba University of Japan and UAV at Pustekbang-LAPAN Bogor, Indonesia. Latency values from several parameters have been presented. Latency data is used to represent real-time data received by GCS to UAV and vice versa. In short, the latency is 2.742 s for manual - auto flight mode, 1.736 s for attitude response right roller, 1.474 s for pitch up, 20.612 s for reading waypoint, and 0.244 s for elevators joystick response. Furthermore, these data will be considered when developing UAV satellite communication systems.