• 한국초전도학회:학술대회논문집
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• v.13
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• pp.93-93
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• 2003

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2006.05a
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• pp.204-204
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• 2006

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2006.05a
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• pp.102-102
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• 2006

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2007.05a
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• pp.176-176
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• 2007

• 한국약용작물학회:학술대회논문집
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• 2006.11a
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• pp.43-48
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• 2006

• Bulletin of the Korean Chemical Society
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• v.26 no.4
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• pp.655-657
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• 2005

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05b
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• pp.525-528
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• 2006

This study performed an experimental test to derive the characteristics of compressive strength, het of hydration and creep of roller compacted concrete. The main variable of strength test are cement content and fly ash content. The heat of hydration test was performed using MARUTO CH-50-CA and dreep test was carried out according to KS F 2453.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.07a
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• pp.278-278
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• 2004

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2009.04a
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• pp.559-560
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• 2009

• 한국정보통신설비학회:학술대회논문집
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• 2009.08a
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• pp.112-114
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• 2009

In this paper, a PN code tracking loop with extended Kalman filter (EKF) is proposed for a direct-sequence spread-spectrum. EKF is used to estimate amplitude and delay in a multipath fading channel. It is shown that tracking error performance is significantly improved by EKF compared with a conventional tracking loop.