• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.5
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• pp.163-167
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• 2016

We have developed a millimeter-wave radiometer system for applications in the fields of medical imaging. In this paper, we introduced the brightness temperature measurement in the human body using Millimeter-wave Radiometer. Calibration of sensitivity of the radiometer system is essential to measure equivalent temperature (brightness temperature) of objects. We have developed, as a calibration source, a new type of black body for the millimeter wave region with temperature control capability. The system noise figure and temperature sensitivity of the system measured using the blackbody are 3.3 dB and 0.1 K, respectively. The brightness temperature of human body through clothes was measured to be around $38^{\circ}$[C].

• Journal of the Korea Institute of Military Science and Technology
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• v.13 no.6
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• pp.1133-1138
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• 2010

We have developed an imaging radiometer system at W-band. The system consists of lens, reflector, 30-ch receiver array, scanner, and signal processor. One receiver consists of a dielectric rod antenna, a balun, LNA(low noise amplifier) and a detector. The system configuration requirements are described. Finally, we represent radiometer images to obtain through clouds, smoke, dust, and other obstructions which render visible and IR systems ineffective.

• 발명특허
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• v.4 no.9 s.43
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• pp.26-28
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• 1979

정보산업(정보기술)에는 정보공학시스팀(두뇌적 정보처리)과 인사공학시스팀(행정적 정보처리)이 있다. 전자의 기능은 계산, 인식, 판단, 분석, 번역, 예측 등이고, 시스팀은 컴퓨터기술을 말한다. 저자(인사공학)의 기능은 기록, 기억, 표시, 축적재생, 보존, 전달, 전송, 가공등이고 시스팀에는 전자통신기술, 사진, 인쇄, 기록, 표시, 기억, 상재생시스팀을 말한다. 전자통신기술에는 전보, 전화, 팩시밀리, TV, 라디오등의 기능을 말한다. 브라운관의 결점은 도형(영상)표시의 정확성에 한계가 있고, 고전압이 필요하고 또 전자빔(속)을 편향하는데 소비하는 전력도 굉장하다. 그리고 무엇보다 문제점은 적어도 미터${\cdot}$사이즈이상의 화면을 영상하려면 수상기의 체적이 너무 커져야 한다는 점이다. 여기에 등장한 것이 벽걸이 TV이다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.44 no.8
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• pp.710-717
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• 2016

Satellite payload can be classified as electro-optical payload, SAR, microwave radiometer, communication payload, navigation payload and so on in accordance with the mission objective. The technology of satellite payload was tried to be obtained through development of KOMPSAT series, COMS and STSAT in Korea. In this paper, the required technology for the development and world market trend of satellite payload were studied and described. Since KOMPSAT program has been started in 1994, technology status and future prospects of satellite payload in Korea are studied and analyzed.