Multipath Mitigation for Pulses Using Supervised Learning: Application to Distance Measuring Equipment

김의호 사단법인 항법시스템학회 2016 Journal of Positioning, Navigation, and Timing Vol.5 No.4

This paper presents a method to suppress multipath induced by pulses using supervised learning. In modern electronics, pulses have been used for various purposes such as communication or distance measurements. Like other signals, pulses also suffer from multipath. When a pulse and a multipath are overlapped, the original pulse shape is distorted. The distorted pulse could result in communication failures or distance measurement errors. However, a large number of samples available from a pulse can be used to effectively reject multipath by using a supervised learning method. This paper introduces how a supervised learning method can be applied to Distance Measuring Equipment. Simulation results show that multipath induced distance measuring error can be suppressed by 10 ~ 45 percent depending on the allowed pulse shape variation allowed in a standard.

위성항법 이용 불능에 대비한 DME/DME 항법성능 최적화 방안 연구

김의호 청주대학교 2017 産業科學硏究 Vol.34 No.2

Global Navigation Satellite Systems (GNSS) are one of the most important aircraft navigation sources. However, the cases of intentional or unintentional GNSS interference have been significantly increasing. Therefore, it is imminent to develop alternative navigation means for aircraft in the cases of GNSS outage for a long time. This paper discusses how Distance Measuring Equipment (DME), a conventional ground based navigation aid, can be optimized to be a promising alternative positioning source for aircraft navigation.

교육 : 글로벌 에티켓을 익히자

김의호 남명학연구원 2010 선비문화 Vol.18 No.-

학교단위책임경영제와 교육재정

김의호 동아대학교 교육대학원 2001 동아교육논총 Vol.27 No.-

School-Based Management(SBM) is a part of deucation restructuring strategies that has been implemented by developed countries. For the successful introduction and realization of the system in this nation, it is prerequisite that individual schools should be authorized to exclusively make decisions regarding three key aspects of school education, that is, curriculum arrangement and operation, personnel management and budget compilation And the following several requirements should be fulfilled. First, decision makings should be performed jointly by special teams which can contain all of the school faculty rather than only by School Management Committee. Second, the disclosure of information should be promoted orienting education demanders through information sharing devices. Third, autonomous, school-based management requires the continuous training of teachers in order to make them have experts and technologies as necessary for such management. Fourth, a jurisdictional education office should strengthen internal or external rewards for a successful education by any individual school. Fifth, leadership by principal in the level of individual school should be fundamentally reformed. SBM can not be effective if it is not sustained by school-based budgeting. School accounting system is one of the main constitutes of school-based management. Under the system, financial allocation is implemented in a total amount unit basis for each of individual schools after fully considering the number and educational needs of students and characteristic but objective requirements by schools. When the education office allocates budget to schools in prescribed procedures, the top leadership of each of the school, principal should establish a standard about how to divide such budget for school operation through consultation with teachers and student parents. If the school management invest a large part of the operation expense into teaching and learning processes in a fair way, it will make teachers recognize that teaching is being more preferred than any others, resultantly improving teachers' contribution to classes.

동물병원 관리요령

김의호 대한수의사회 1993 대한수의사회지 Vol.29 No.11

용선예비처리용 $Al_2O_3-SiC-C$계 내화물 개발

김의호,이석한,이석향,서병길,박정민,이재옥 한국세라믹학회 1986 한국세라믹학회지 Vol.23 No.5

As there is a growing trend to make high quality steel improving production efficiency and utilizing slag as resources the technologies of hot metal pretreatment have been progressed to meet these demands. Although mill scale $Na_2CO_3$ and CaO used as fluxes proved to be excellent agents then can severely corrode refractories such as chamotte and high alumina for torpedo or open ladle car. Thus it was considered necessary to develop new refractories which can endure suchy conditions. Desulfurization fluxes vastly used in POSCO are $CaCO_3$ and CaO Recent trials have been made by testing phenol resin bonded $Al_2O_3-SiC-C$ bricks in torpedo ladle car for hot metal pretreatment. The results showed that the life of this brick became about 1.2 times longer than that of foreign products. And the crushing strength M.O.R corrosion resistance and oxidation resistance were tested.

ARCS 동기 이론을 적용한 학습용 모바일 앱 설계 연구

김의호,양해술 한국디지털정책학회 2015 디지털융복합연구 Vol.13 No.4

도시행정조직 조직문화 측정의 구조적 접근

이종수,김의호,남승필 한국지방자치학회 2005 한국지방자치학회 학술대회 Vol.2005 No.2

학교 회계제도의 문제점 및 발전 방향 탐색

최청일,김의호 東亞大學校 2001 東亞論叢 Vol.38 No.-

To cultivate new intellectuals and creative ones who would cope better with the 21st century's knowledge-based society, each of the schools of this nation should perform its capacity related to education to the utmost under self-regulation. The new version of school accounting system becomes a framework which would sustain the effectiveness of such voluntary and creative education in each level of school. It is not yet determined whether the newly introduced system would be really effective in education fields. But, in fact, success or failure in accomplishing the purpose of any system as introduced depends probably on ways of the system operation. The successful operation of school accounting system requires a thorough improvement of existing budget allocation practices, that is, the current situation that supervising education agencies allocate budgets to each school and decide in advance objectives or businesses of budget use without any negotiations with each of the educational institutions, Also such accounting system at each school could be steadily established only when budgeting by each school at its own discretion is carried out democratically and transparently. Such settlement of school accounting system requires recurrently providing related education and training to principals, staff and ordinary teachers and members of school management committee, all of whom are responsible for school budgeting. The education and training should provide substantial and practical instructions, especially regarding the necessity and method of budget demand and the rules of budget and settlement account inspections. In fact, all of the responsible workers, except school adminstration officers, are non-experts about budget. It is, therefore, hooded to form conditions that help those non-professionalists deal with budget effectively. In this sense, the form of budget statements should be made to be easily understood and later school affairs for which budget was really spent should be informed in detail. Moreover, each of the schools itself should provide teachers a preliminary training of budgeting.

지방자치와 혁신 : 제6분과: 정부간 관계 정립 및 지역문화 ; 도시행정조직 조직문화 측정의 구조적 접근

이종수,김의호,남승필 한국지방자치학회 2005 한국지방자치학회 학술대회 Vol.2004 No.4