• Korean Journal of Remote Sensing
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• v.19 no.1
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• pp.53-59
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• 2003

The passive microwave remote sensing has progressed considerably in recent years Important earth surface parameters are detected and monitored by airborne and space born radiometers. However the spatial resolution of real aperture measurements is constrained by the antenna aperture size available on orbiting platforms and on the ground. The inverse problem technique is researched in order to improve the spatial resolution of microwave scanning radiometer. We solve a two-dimensional (surface) temperature-imaging problem with a major intention to develop high-resolution methods. In this paper, the scenario for estimation of both radiometer point spread function (PSF) and target configuration is explained. The PSF of the radiometer is assumed to be unknown and estimated from the observations. The configuration and brightness temperature of targets are also estimated. To do this, we deal with the parametric modeling of observation scenario. The performance of developed algorithms is illustrated on two-dimensional experimental data obtained by the water vapor radiometer.

• Proceedings of the KIEE Conference
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• 2008.04a
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• pp.151-152
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• 2008

본 논문에서는 도립 역진자 시스템에서의 진자의 도립 상태를 유지하도록 하기 위하여, DSP와 FPGA를 결합하여 ANFIS 뉴로퍼지 제어기를 구현하여 실험하였다. 도립진자의 위치 추종 성능을 PID 제어기와 비교 평가하였다.

• Proceedings of the Optical Society of Korea Conference
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• 2009.02a
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• pp.391-392
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• 2009

• Proceedings of the KIEE Conference
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• 2003.10b
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• pp.155-157
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• 2003

In this paper, CPM(controlled-permanent magnet)-type magnetic levitation system design is presented. The target plant to be controlled consists of eight magnets with permanent magnet and electromagnet. The design procedure is also described and the result of this work is shown.

• Proceedings of the KIPE Conference
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• 2011.07a
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• pp.539-540
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• 2011

본 논문에서는 건설기계 및 운반기계, 차량의 유압장치(브레이크, 클러치 및 파워 스티어링 시스템)로 널리 사용되어지고 있는 외접기어펌프의 치형을 Involute 기어형식으로 설계하였다. 상용프로그램인 Pumplinx 프로그램을 통해 이 기어를 해석하여 효율 및 성능을 알아보았다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.275-276
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• 2006

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.513-514
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• 2006

• Proceedings of the SAREK Conference
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• 2007.06a
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• pp.82-82
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• 2007

• Carbon letters
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• v.18
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• pp.67-70
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• 2016

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.673-675
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• 2003

The image restoration algorithm for microwave imaging radiometer is proposed. A blind deconvolution method was proposed. A point spread function was identified and three deconvolution schemes were employed, Wiener filtering, Lucy- Richardson deconvolution, and Maximum Likelihood blind deconvolution. The experimental data is illustrated with restored image.