Search Results - "Seong Sik Yoon"

Performance Evaluation of a Modified SweepSAR Mode for Quad-Pol Application in SAR Systems by Lim, Jung-Hwan, Lee, Jae Wook, Lee, Taek-Kyung, Lee, Hyeon-Cheol, Lee, Sang-Gyu, Ryu, Sang-Burm, Yoon, Seong-Sik

“…Efficient earth observation using spaceborne synthetic aperture radar (SAR) requires the analysis of high-resolution wide-swath (HRWS) systems, which have a…”
Get full text

Panel Misalignment Effects on the Radiation Pattern from a Solid Surface Deployable Antenna by Jo, Seung-Joo, Lee, Ji-Yong, Yoon, Seong-Sik, Lee, Taek-Kyung, Lee, Jae Wook

“…This paper presents an analysis of antenna performance degradation due to the panel misalignment in a solid surface deployable antenna. The misalignment of the…”
Get full text

Electrical Performance Analysis and Prediction for Complex Mesh Based on Model Angles by Huang, Jing, Jo, Seung-Joo, Seo, Chang-Won, Lee, Si-A, Yoon, Seong-Sik, Park, Seong-Ook

“…The metallic mesh serves as a reflecting surface on deployable reflector antennas for satellites. Electrical properties differ for meshes with different…”
Get full text

Safe Arm Design with MR - based Passive Compliant Joints and Visco - elastic Covering for Service Robot Applications by YOON, Seong-Sik, KANG, Sungchul, YUN, Seung-Kook, KIM, Seung-Jong, KIM, Young-Hwan, KIM, Munsang

“…In this paper a safe arm with passive compliant joints and visco—elastic covering is designed for human-friendly service robots. The passive compliant joint…”
Get full text

Dynamic anti-windup scheme for feedback linearizable nonlinear control systems with saturating inputs by Yoon, Seong-Sik, Park, Jong-Koo, Yoon, Tae-Woong

“…This paper proposes a dynamic compensation scheme for input-constrained feedback linearizable nonlinear systems to cope with the windup phenomenon. Given a…”
Get full text

Smooth switching control for transfer from the Automatic Traveling Mode to the Power Assist Mode of the Skill-Assist by Lee, Suwoong, Yoon, Seong-Sik, Hara, Susumu, Yamada, Yoji

“…The objective of this study is to verify a smooth switching control method for transfer from the automatic traveling mode (ATM) to the power assist mode (PAM)…”
Get full text

Erratum to “Panel Misalignment Effects on the Radiation Pattern from a Solid Surface Deployable Antenna” by Jo, Seung Joo, Lee, Ji-Yong, Yoon, Seong Sik, Lee, Taek-Kyung, Lee, Jae Wook

Get full text

Erratum to “Performance Evaluation of a Modified SweepSAR Mode for Quad-Pol Application in SAR Systems” by Lim, Jung-Hwan, Lee, Jae Wook, Lee, Taek-Kyung, Lee, Hyeon-Cheol, Lee, Sang-Gyu, Ryu, Sang-Burm, Yoon, Seong-Sik

“…In the paper entitled “Performance Evaluation of a Modified SweepSAR Mode for Quad-Pol Application in SAR Systems (Journal of Electromagnetic Engineering and…”
Get full text

A Modified SweepSAR Mode with Dual Channels for High Resolution and Wide Swath by Yoon, Seong Sik, Lee, Jae Wook, Lee, Taek-Kyung, Ryu, Sang-burm, Lee, Hyeon-Cheol, Lee, Sang Gyu

“…In this study, an imaging mode of the modified SweepSAR is proposed with performance analysis for a high-resolution and wide swath coverage. To reduce the…”
Get full text

Miniaturization of SIW-Based Linearly Polarized Slot Antennas for Software-Defined Radar by Jun Yong Han, Seong Sik Yoon, Jae Wook Lee

“…Two substrate integrated waveguide (SIW)-based antennas for the application of software-defined radar are proposed and investigat-ed herein. It is usually well…”
Get full text

Parameter Selection Procedure of Parabolic Reflector Antenna for the Optimum Synthetic Aperture Radar Performances by Taek Kyung Lee, Dong Woo Yi, Seong Sik Yoon, Jae Wook Lee

“…A procedure for antenna parameter selections is proposed that considers the relationships between synthetic aperture radar performance and the antenna…”
Get full text

Conductivity Evaluation of a Newly Proposed Material for a SAR Reflector Antenna by Jae Wook Lee, Taek Kyung Lee, Jin Ho Roh, Hark Inn Kim, Dong Woo Yi, Seong Sik Yoon

“…Large spaceborne antennas should be lightweight, a factor related to the development costs of launch vehicles. In order to overcome this drawback, a…”
Get full text

The Experimental Study on the Antibiotic Effects of Fel Ursi Pharmacopuncture Solution on Bacterial Species which cause Keratitis by Seong-Sik Yoon, Hyung-Sik Seo

“…Objectives : This experimental study was performed to investigate the effectiveness of Fel UrsiPharmacopunture solution(FUPS) manufactured by using…”
Get full text

Insensitivity Characteristics in the Dual Polarization of Deployable CFRP Reflector Antennas for SAR by Yoon, Seong Sik, Lee, Jae W., Lee, Taek-Kyung, Roh, Jin Ho

“…A large deployable reflector antenna is considered and designed for the application of a synthetic aperture radar system requiring high gain for the high…”
Get full text

Dynamic tactile restoration by time domain nonlinear filtering without forward modeling by YOON, Seong-Sik, YUN, Seung-Kook, KANG, Sungchul, CHOI, Hyoukreol, YAMADA, Yoji

“…When we use a tactile sensor, sensing mechanism and restoration of texture from electric sensing signals are important issues. The objectives of this research…”
Get full text

Performance of solid surface deployable antenna for panel misalignment by Ji Yong Lee, Seong Sik Yoon, Sang Hee Kim, Taek-Kyung Lee, Jae Wook Lee, Jin Ho Roh, Dong Woo Yi

“…Solid surface deployable antenna provides reduced volume in the stowage and relatively high surface precision. CFRP(Carbon Fiber Reinforced Polymers) is a…”
Get full text

Novel waveguide transition structure for Isoflux antenna in satellite communication by Jee Heung Kim, Jae Gi Son, Seong Sik Yoon, Jae Wook Lee, Taek Kyung Lee, Woo Kyung Lee

“…This paper presents an ISOFLUX pattern antenna with a novel matching transition suitable for X-band satellite data transmission. A novel waveguide transition…”
Get full text

Robust Passivity Based Control with Sliding Mode for DC-to-DC Converters by Min-Chan Kim, Seung-Kyu Park, Ho-Gyun Ahn, Seong-Sik Yoon

“…The PBC(passivity-based control) gives desirable control results in the control of DC-to-DC converters. The SMC(sliding mode control) has good robustness…”
Get full text

Input preshaping control of the safe arm with MR-based passive compliant joints by YUN, Seung-Kook, KANG, Sungchul, KIM, Munsang, YOON, Seong-Sik

“…In this paper, design and control of a safe arm with passive compliant joints (PCJ) are presented. A new manipulator with passive compliance property has been…”
Get full text

Performance Degradation of Deployable Antenna from Panel Misalignment with Random Surface Errors by Jo, Seung Joo, Lee, Ji Yong, Yoon, Seong Sik, Lee, Taek-Kyung, Lee, Jae W.

“…The effects of panel misalignment and random surface errors on the performances of the deployable antenna is presented. The deployable antenna is assumed to…”
Get full text