초록 ▼

차세대 소형위성 실현을 위한 요소기술개발
- 위성의 경량화를 위한 초경량, 저전력 X-밴드 RF 송수신단 연구를 진행하여, 위성 통신용 X-밴드 RF 송수신단 요구 조건에 근거하여 RF 송수신 사양 및 구조를 도출함
- 위성내 계장 cable의 무선화를 위한 위성 내부 네트워크 기술연구를 진행하여, 무선통신기술을 적용하기 위한 위성내부통신 요구 사항 분석과 sensor network part와 local/personal network part의 2부분으로 구성된 위성 내부 무선통신 프레임 워크를 제안함
- 우주환경에

차세대 소형위성 실현을 위한 요소기술개발
- 위성의 경량화를 위한 초경량, 저전력 X-밴드 RF 송수신단 연구를 진행하여, 위성 통신용 X-밴드 RF 송수신단 요구 조건에 근거하여 RF 송수신 사양 및 구조를 도출함
- 위성내 계장 cable의 무선화를 위한 위성 내부 네트워크 기술연구를 진행하여, 무선통신기술을 적용하기 위한 위성내부통신 요구 사항 분석과 sensor network part와 local/personal network part의 2부분으로 구성된 위성 내부 무선통신 프레임 워크를 제안함
- 우주환경에 안정한 주변 회로 시스템의 최적 설계를 위한 고성능 표면탄성파 자이로스코프 개발 연구 진행
- 소형위성과 UAV에 탑재할 수 있는 소형화된 SAR 센서를 개발연구를 통하여 FPGA를 사용한 chirp generator를 구현함

Abstract ▼

The purpose of this research is to develop elementary technology for next-generation micro satellite. Nowadays, micro satellites are standing out as the alternative to conventional satellites. As the growth of satellite market, the proportion of micro satellite is also increasing. However, the devel

The purpose of this research is to develop elementary technology for next-generation micro satellite. Nowadays, micro satellites are standing out as the alternative to conventional satellites. As the growth of satellite market, the proportion of micro satellite is also increasing. However, the developed countries of space technology avoid technical transfer, because space technology is highly related with military or high-technology. Therefore, localizing of micro satellite technology is needed to raise our competitiveness of space technology in the world.
In this research, construction and circuit of X-band RF transceiver have been studied for low power and light weight. And to miniaturize the construction of satellite, making the instrumentation cable of satellite into wireless is researched. Surface acoustic wave gyroscope of high performance for optimization of around circuit system is also analyzed. Finally, FPGA based chirp generator is developed for improvement of SAR image resolution.
As a result of this research, specification of RF transceiver and RF block using RF system budget simulation program. And to apply the wireless communication technology, communication of inner satellite requirements are analyzed and frame work of system is proposed. The optimization of surface acoustic wave gyroscope is drawn. Also, the chirp signal is implemented by Altera Cyclone IV FPGA. During this research, we have established the international relations with JAXA/ISAS and Chiba University.
The results of this research can be used to following researches. The studies of RF part, wireless communication technology and gyroscope can be utilized for platform that needs low power RF system like micro satellite, UAV and etc. The possibility of manufacturing the prototype of chirp generator can be confirmed by hardware verification of the implementation result.