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이영중,박주래,류시찬,Lee, Young-Joong,Park, Joo-Rae,Lyu, Si-Chan 한국군사과학기술학회 2006 한국군사과학기술학회지 Vol.9 No.4
LYNX ESM has not only ESM function but Datalink function. The LYNX boarded equipment Interface and Channel coding is needed for LYNX Datalink to support the mother ship with tactical data included threat radar analysis data of LYNX ESM, navigation data, Radar and Sonar of LYNX. The interface of loaded equipments are various protocol like as ARINC419/429, RS232, Synchro, Sync Serial. The Channel coding of Convolution-Scrambler-Interleaver-Bit Stuffing is applied for recovering the transmission data mixed with propagation errors in sea environment.
Remote-PECVD SiN passivation을 이용한 metamorphic-HEMT의 성능향상
이강민(Kang-min Lee),류시찬(Si-chan Lyu),서광석(Kwang-seok Seo) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
For optimized low noise and power application in millimeter wave range, InAlAs/InGaAs metamorphic HEMT on GaAs substrate is good alternative to GaAs pHEMT or InP HEMT. But high aluminium mole fraction in barrier layer bring instability of the surface due to surface trap in recess region. Remote-PECVD SiN passivation is good method to reduce surface trap. In this paper, we introduce to performance improvement of metamorphic-HEMT using Remote-PECVD SiN passivation. After passivation, DC/RF characteristic results were improved then before passivation.
전자전지원을 위한 새로운 레이더 신호 수신 블랭킹 기법
송규하(Kyu-Ha SONG),이동원(Dong-Weon LEE),한진우(Jin-Woo HAN),류시찬(Si-Chan LYU) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
The blanking interface between an ES system and a radar system on the same platform cause the unwanted radar signal separation in the process of the signal measurement of the ES system. In this paper, we propose the novel radar signal blanking method for ES. The proposed method extracts a standard of judgement which we can decide whether a radar signal is separated by the blanking interface and presents how to merge the separated signals. Test result is presented to show the performance of the proposed method.