• Environmental engineer
• /
• s.100
• /
• pp.46-47
• /
• 1994

• Korea Petroleum Association Journal
• /
• no.1 s.83
• /
• pp.15-15
• /
• 1988

• Korea Petroleum Association Journal
• /
• no.4 s.86
• /
• pp.8-8
• /
• 1988

• Korea Petroleum Association Journal
• /
• no.5 s.87
• /
• pp.15-15
• /
• 1988

• 어항어장
• /
• s.2
• /
• pp.58-60
• /
• 1988

• Environmental engineer
• /
• s.32
• /
• pp.36-41
• /
• 1989

• Environmental engineer
• /
• s.33
• /
• pp.32-34
• /
• 1989

• 수도
• /
• s.31
• /
• pp.30-32
• /
• 1984

• Monthly Duck's Village
• /
• s.242
• /
• pp.36-37
• /
• 2023

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.20 no.4
• /
• pp.396-405
• /
• 2009

This paper describes playback downlink and telecommand uplink channel design performed for a transportable small-sized KOMPSAT(Korea Multi-Purpose Satellite) ground station. As a result of downlink channel design, required receiving performance was calculated from the threshold signal-to-noise ratio of playback signal and it was revealed that this performance can be guaranteed in 1.5 m ground station with 6.5 dB/K of G/T. For the uplink channel design, 40 dBW of EIRP was derived from the threshold signal-to-noise ratio of telecommand signal received at on-board receiver. The implemented small-sized ground station based on design was evaluated to be fully acceptable for KOMPSAT TT&C(Telemetry, Tracking and Command) system and playback downlink design without taking account of additional 3 dB system link margin was shown to be effective because it had provided constantly initial channel performance without any remarkable degradation over several years of tests with KOMPSAT and KOMPSAT-2, for both uplink and playback downlink in the elevation angle above $10^{\circ}$.