임베디드 리눅스를 이용한 이동체 추적 안테나 시스템에 관한 연구

김종권,우귀애,조겸래,이대우,장철순,Kim, Jong-Kwon,Woo, Gui-Aee,Cho, Kyeum-Rae,Lee, Dae-Woo,Jang, Chul-Soon 한국항행학회 2004 韓國航行學會論文誌 Vol.8 No.1

본 논문에서는 이동체간의 Data Link를 위해 임베디드 리눅스가 탑재된 임베디드 제어 시스템을 이용하였고 이동체를 추적하여 데이터 통신을 할 수 있는 안테나 시스템에 관하여 연구하였다. 안테나를 구동하기 위한 임베디드 제어 시스템은 SA-1110을 탑재한 마이크로프로세서를 기반으로 하였고, 이 임베디드 제어기가 두개의 스텝 모터를 구동하여 안테나의 방위각과 고도각을 제어한다. 그리고 GPS로부터 이동체의 위치정보를 수신 받아 이로부터 이동체간의 상대적인 위치와 방향을 산출하여 안테나가 대상 이동체를 지향할 수 있도록 하였다. 설계한 임베디드 제어기와 안테나 시스템의 검증을 위해, 아리랑 위성의 한반도상공 궤적정보를 바탕으로 추적시험을 실시하여 그 성능을 분석하였다. In This paper the embedded linux based embedded control system was used and the tracking antenna system was studied for data link and communication between moving vehicles. A microprocessor based embedded controller is equipped with SA-1110 board and this embedded controller can control the azimuth and the elevation angle of the antenna. The relative position and attitude for pointing are calculated by using the GPS position signals from the moving vehicle. To verify the performance of the designed embedded antenna system, the orbit information of the Arirang satellite(from KARI) is used.

수출신용보증과 對서유럽 수출과의 인과관계 연구

김종권(Jong-Kwon KIM) 한국무역상무학회 2021 貿易商務硏究 Vol.89 No.-

한국의 경제는 대외적인 영향에 의해 불확실성이 증가하고 있다. 특히 2020년 신종 코로나바이러스 감염증에 따른 팬데믹 현상으로 경제외적인 요인들이 경제적으로 영향이 있을 것으로 판단된다. 본 연구는 수출신용보증과 수출의 인과관계에 대하여 분석해 봄으로써 수출신용보증을 통한 수출 증대 방안을 마련해 보는데 연구의 목적이 있다. 이를 위해 VAR모형을 통한 그랜져(Granger) 인과관계 실증분석을 하였고 그 결과 對서유럽수출 증감률과 수출신용보증 증감률이 서로 5% ~ 10%에서 상호 간에 영향을 주고 있는 것으로 나타났다. 이는 對서유럽수출 증가가 수출신용보증에 대한 수요 증대로 이어지며, 수출신용보증의 증가가 對서유럽수출 증가에도 긍정적인 영향을 주고 있음을 나타내는 것이다. 이에 따라 수출신용보증의 역할이 제대로 잘 작동될 수 있도록 각계의 노력이 뒷받침되어 잘 유지된다면 수출 증대를 통한 국가발전에도 기여할 수 있을 것으로 기대된다. Korea"s economic reality is in a situation where uncertainty can be amplified by external influences. This will work to some extent due to policy efforts such as diversification of exports, but the role of driving force through exports, which will have been a pillar of the Korean economy. Therefore, this study examined the relationship between export credit guarantee and Korea"s trade. The reasons for such research can be reduced a variety of risks in the advance of a thorough trade environment. Firstly, the standard and average are presented as basic statistics. The export credit guarantee rate and the Western European export rate increase rate were 8.51% and 3.83%, respectively. Their standard deviations were 84.97% and 29.03%, respectively. Second, as a result of the regression analysis, the decrease in the unsecured call rate may have a statistical significance of 5%, which may have a positive effect on the export growth rate of Western Europe. In addition, the increase in export credit guarantee has been shown to contribute to the export growth rate of Western Europe. Third, it was found that the inflation rate and the unsecured call rate were mutually influential relations with the Granger causal relationship. In addition, Western European export growth rate had a one-sided effect on inflation rate. This indicates that inflows of funds due to export growth may affect the inflation rate. In addition, export credit guarantee rates and export in Western Europe were mutually influential at 5%and 10%. This indicates that the increase in Western European exports led to an increase in demand for export credit guarantees, and that the increase in export credit guarantees also played a positive role in increasing exports to Western Europe. In conclusion, if the efforts of various sectors are well supported and managed so that the role of export credit guarantee can work properly, it can be helpful for the national development through export increase.

신남방 정책의 효과를 제고하기 위한 무역보험의 역할

김종권(Jong-Kwon KIM) 한국무역상무학회 2020 貿易商務硏究 Vol.85 No.-

대외무역의 불확실성으로 말미암아 수출다변화와 다양한 품목들에 대한 수출방안이 제시되고 있다. 이에 따라 추진되고 있는 신남방(ASEAN) 지역에 대한 무역과 이와 연관되어 있는 무역보험이 중요한 역할을 할 수 있을 지 연구가 필요한 시점이다. 따라서 본 논문에서는 무역보험 중에서 신남방(AESEAN) 정책과 특히 관련성을 갖고 있는 중장기 무역보험과 이 지역과 연계성이 높은 기계산업 수출의 변수를 선정하여 분석하였다. 실증분석에는 벡터오차수정모형에 의한 그랜져 인과성분석, 충격반응함수에 의한 분석, 분산분해 분석 등으로 실시한 것이다. 결론적으로 연구를 토대로 살펴보면 신남방(AESEAN) 지역에 대한 기계산업 수출 증대 정책의 실효성에서 중장기무역보험의 역할이 중요하고 이와 같은 측면은 향후에도 지속될 것으로 판단된다. Uncertainties in foreign trade have led to export diversification and export options for various items. Therefore, it is time to study whether trade in the ASEAN region and the related trade insurance can play an important role. Therefore, this paper selected and analyzed the mid or long-term trade insurance which is particularly relevant to AESEAN policy among the trade insurance, and the variables of machinery industry exports that are highly related to this region. The result of the cross correlation analysis showthat themid-to long-term trade insurance acquisition growth rate has a cross correlation of 0.54with one month precedence over the export growth rate of themachinery industry. The empirical studies were structured through impulse response and variance decomposition, Granger causality analysis by vector error correction model. According to theGranger causality analysis, Treasury bond yields (3 years) and inflation rate have an one-sided influence on inflation rate and machine industry export growth (ASEAN), respectively. The result of the analysis by the impulse response functionshowedthatmid-to long-termtrade insurance acquisition growth rate stabilized after lowest point over three or fourmonths due tothe upsurge of Treasury bond yields (3 years). According to the result of the variance decomposition analysis of themid-to long-term trade insurance acquisition growth rate, the impact of the mid-to long-termtrade insurance acquisition growth rate is expected to be greatest in the short and mediumto long term. In conclusion, based on the study, the role of mid- to long-term trade insurance is important in the effectiveness of the policy of increasing machinery industry exports to theAESEANregion, and this aspect is expected to continue in the future.

미국시장에 대한 한국의 수출증대와 단기무역보험의 연관성 분석

김종권(Jong-Kwon Kim),유광현(Kwang-Hyun Yu) 한국무역연구원 2020 무역연구 Vol.16 No.1

Purpose- This paper is related to study the relations between Korea’s export growth and short-term trade insurance acquisition rate relative to the Korean economy. Because Korea has an export-oriented trade structure, the economic ripple effect of the US market on the Korean economy is enormous, and therefore this study is relevant. Design/methodology/approach- This study conducted various analyses, starting with basic statistics such as average statistics and standard deviations. Second, the data was examined through regression analysis, and lastly, the Granger’s Causality test was conducted. Findings- Findings showed that the average increase and decrease of the acquisition performance of short-term trade insurance is 27.73%, and the average of total US export rate increase and decrease is 3.91%. The standard deviation of the short-term trade insurance acquisition rate was 121.51%, and the standard deviation of the total US export rate was 16.52%. In view of current uncertainties in the external economy, the role of short-term trade insurance seems to be important. Secondly, through regression analysis a decrease in interest rate leads to a positive effect by strengthening export competitiveness due to reduced export companies’ costs, and ultimately, this translates to an increase in total exports. Third, the results of the Granger’s Causality test show that the short-term trade insurance acquisition rate and the U.S. export growth rate are mutually influential. Research implications or Originality- In 2020, Korea’s economic situation is foreseen to be characterized by heightened uncertainty due to external economic conditions and dynamism in its various economic variables. The U.S. economy can continue its boom during the year similar to the period before 2019. Accordingly, it is a meaningful attempt to analyze the relationship between Korea’s export growth and the short-term trade insurance acquisition rate as these have a bearing on US exports. In conclusion, this study implies that we should not overlook the importance of short-term trade insurance in terms of the various credit and market risks in Korea’s exports and the implications of such on the overall Korean economy.

OTEC 시스템의 암모니아/물 혼합비에 따른 칼리나 사이클 특성해석

김종권(Jong-Kwon Kim),김유택(You-Taek Kim),차상원(Sang-Won Cha),윤학근(Hak-Keun Yoon) 한국해양환경·에너지학회 2012 한국해양환경공학회 학술대회논문집 Vol.2012 No.11

수송체 항법시스템을 위한 최적 정렬 루프 설계

김종권(Jong-Kwon Kim),송윤섭(Youn-Seob Song) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_1

The inertial navigation system outputs are obtained by integration of measured acceleration. Therefore the precision of the system depends on initial value of integration. For reduce the errors of navigation system, it is necessary to periodical realign and recalibrate of the system using an external reference. However, external aids, such as GPS, have many limits in actual operations. Therefore, to obtain a high precision of navigational information, it is inevitable to align a navigation system initially with respect to a reference. The purpose of this paper is to present a optimal controller design procedures for the multi variable alignment system.

인트라넷 환경을 위한 PKI 인증서 유효목록 검증 시스템에 관한 연구

김종권 ( Jong-kwon Kim ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.1

기 구축된 Public Key Infrastructure(이하 PKI) 에서 발급된 디지털인증서를 외부 네트워크와 단절 된 인트라넷 환경에서 사용하기 외부 네트워크에 지정된 인증서 검증 서버에 접속할 수가 없기 때문에 인증서 유효성 검증의 문제를 발생시켜 사용이 불가능하다. 이러한 문제점을 해결하기 위해 인트라넷 환경을 위한 인증서유효목록 검증 시스템을 제안한다. 인증서유효목록 검증 시스템은 기존의 PKI 에서 인증서 검증을 위해서 사용하는 Certificate Revocation List (이하 CRL)를 대체하는 Certificate Valid List (이하 CVL)를 사용하여 외부 네트워크와 접속이 단절된 인트라넷 환경에서도 기구축된 PKI 에서 발급된 디지털 인증서의 유효성을 검증할 수 있다. 인증서유효목록 검증 시스템은 CVL 의 생성을 위한 Certificate Valid List Manager (이하 CVLM)와 주기적인 CVL 발급 및 게시를 위한 Certificate Valid List Issuer (이하 CVLI), 응용서비스에서 사용하는 User Agent (이하 UA) 를 포함한다.

中國 WTO 加入 關稅引下에 따른 4개 分野 保健産業 輸出에 대한 硏究

김종권(kim jong kwon),양평섭 한국무역학회 2005 한국무역학회 세미나 및 토론회 Vol.2005 No.2

The health industry of China is faster than before, so it will be rank 5<SUP>th</SUP> at world-wide markets in 2010. Firstly, the custom tariff will be lower as 16.4% in 2000 and 15.3% in 2001, 12% in 2002. Moreover, it will be lower as 10% 2005 and 5% 2010. Secondly, this is because of expansion of purchase power on increase in economic growth, extended human life expectancy. As it is entered the WTO in January 2002, it will positively affect on export of Korea for China. This paper focuses on the analysis of export increase caused by reduction of custom tariff in China. As above mentioned, the time schedule on average reduction of custom tariff is 15% in 2000, 10% in 2005, 5% in 2010. As the empirical test related health industry, it presents 11.45% export increase rate for China of Korea on reduction of custom tariff from 2001 to 2010. The exporting of drug for China will be up to 16.98% for 10 years. Also, the exporting of Biomedical will be up to 14.62%, and respectively 1054%, 8.69% in Cosmetics and food industry. Conclusionally, the exporting of drug and Biomedical for China will be greatly any other industries of health industry. It is just the same with exporting items in health industry over million dollars. So, it is necessary that firms increase to spend in R&D investment and government support as policy for health industry.

일반논문 : 창의,인성 교육에 대한 과학 교사와 학생의 인식과 교과서 내용 분석 및 수업 적용 사례

김종권 ( Jong Kwon Kim ),손연아 ( Yeon A Son ),김동렬 ( Dong Ryeul Kim ) 인하대학교 교육연구소 2012 교육문화연구 Vol.18 No.4

본 연구에서는 창의·인성 교육에 대한 교사와 학생들의 인식과 2009 개정 교육과정 과학 교과서에 제시된 창의·인성 내용을 분석하고 이를 토대로 실제 창의·인성 과학 수업을 적용한 결과를 분석하였다. 첫째, 인식 조사 결과 교사들은 창의 성 요소가 전체적으로 과학 교과와의 관련성이 높은 것으로 인식하고 있었다. 이에 반해 학생들은 창의성 요소 중 인지적 요소가 정의적 요소보다 상대적으로 과학교과와의 관련성이 높은 것으로 인식하고 있었다. 이러한 이유는 면담 결과에서 나타난 것처럼 교사와 학생이 생각하는 창의·인성 교육의 방향이 다르기 때문이다. 둘째, 교과서 분석 결과, 교사와 학생이 설문지에서 관련성이 높다고 생각했던 요소들이 분석 대상 전체 교과서 상에서 반영되어 있었다. 교사와 학생이 상대적으로 관련성을 낮게 인식한 인성 요소는 교과서에 별도로 구성된 창의·인성 활동을 통해 인성 요소가 반영된 것을 확인할 수 있었다. 셋째, 6차시 창의·인성 교육을 위한 교수·학습과정안을 개발하고 적용한 수업을 전사한 결과, 교과 내용 이외에 교사의 발문과 학생의 답변에 창의·인성 교육 요소가 많이 포함되어 있는 것을 확인할수 있었다. 하지만 교사가 느끼는 수업진도에 대한 부담과 수업 내용의 난이도, 학생이 느끼는 평가에 대한 중압감은 창의·인성 교육 목표를 달성하는데 마이너스 요인으로 분석되었다. This study aims to analyze teachers` and students` perceptions of creativity and personality education and the contents related to creativity and personality suggested in the science textbook from the 2009 Revised Curricula, based on which this study also analyzed actual cases of applying creativity and personality-oriented science class. Firstly, as a result of investigating their perceptions, teachers perceived that all the factors of creativity have a high relation with the science subject in general. On the contrary, students perceived that out of all the factors of creativity, the cognitive factor has a relatively high relation with the science subject, compared to the affective factor. The reason seems to be because teachers and students perceive creativity and personality education differently from each other, as shown in the results of interviews. Secondly, as a result of analyzing the textbook contents, it was found that all the factors teachers and students believed through the questionnaire have high relations with the science subject are reflected all over the subject textbook. In the meant time, it was found that personality factors students and teachers perceived have lower relations with the science subject are reflected through creativity and personality activities provided apart from the textbook. Thirdly, as a result of investigating classes applying the new teaching and learning process proposal developed for the 6th Revised Creativity and Personality Education, it was found that there are many creativity and personality education factors included in teachers` questions and students` answers in addition to the textbook contents. However, it was analyzed that the parts of class progress and difficulty in the textbook contents teachers have and the part of pressure students have toward evaluations are obstacles to accomplishing the objectives of creativity and personality education.

IPEF에 따른 무역의 활성화 증가와 관련된 향후 정책 연구

김종권(Kim, Jong-Kwon) 한국경영교육학회 2022 경영교육연구 Vol.37 No.5