• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.4
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• pp.713-720
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• 2018

The Signal Intelligence (SIGINT) system based on Angle-of-Arrival(AOA) estimation, interference suppression, and transmission beamforming techniques is a cutting edge technology for efficiently collecting various signal information. In this paper, we present the efficient structure of a satellite system consisted of an AOA estimator, an adaptive beamformer, a signal processing and D/B unit, and a transmission beamformer, for collecting signal information. For accurately estimating AOAs of various signals, efficiently suppressing interference or jamming signals, and efficiently transmitting the collected information or data, we employ Multiple Signal Classification (MUSIC), Minimum Variance Distortionless Response (MVDR), and Minimum Mean Square Error (MMSE) algorithms, respectively. Also, we evaluate and analysis the performance of the presented satellite system through the computer simulation.

• Cross-Cultural Studies
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• v.31
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• pp.35-64
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• 2013

This thesis seeks to compare China's Jing-ju and Japan's Kabuki for their common aspects and differences and examine how they are performed on the stage. Jing-ju is often called as Beijing Opera to refer to a musical play completed during the mid-Ching era and developed around Beijing. Jing-ju is composite arts of music, dance and play which are remarkable in its strict patterns in move along with luxurious costume and heavy make-up. Kabuki which was developed during the Edo-period, is expressional arts also structured with music, dance and play coupled with extravagant costume as well as even more strictly controlled move and emphasis on the beauty of form. The two plays seem very similar to each other in their time setting to gain popularity or features of play. It may look obvious that Jing-ju which had developed earlier than Kabuki, affected the latter's formation. However, general social practices or cultural trends in China and Japan at the time of their development also influenced literature and arts thus affecting play contents and performance expressions. Although the two plays have similar stage structure, they developed in different ways with detailed differences and actors' performance on the stage, way of using a stage and other ways of directing play are largely distinctive from each other. If a play's primary goal is to gain recognition of audience and draw their positive response, the relationship between play and stage becomes essential. With this understanding, this thesis aims to identify where such similarities and differences between the two plays are from by comparing historical background, stage structural development and directing manner development at a basic level.

• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.6
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• pp.1207-1212
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• 2018

The signal intelligence (SIGINT) technology is actively used for collecting various data, in a number of fields, including a military industry. In order to collect the signal information and data and to transmit/receive the collected data efficiently, the accurate angle-of-arrival (AOA) information is required and communication disturbance from the interference or jamming signal should be minimized. In this paper, we present the structure of an adaptive beam-forming satellite system based on the planar array antenna, for collecting and transmitting/receiving the signal information and data efficiently. The presented adaptive beam-forming system consists of an antenna in the form of a planar array, an AOA estimator based on the Multiple Signal Classification (MUSIC) algorithm, an adaptive Minimum Variance Distortionless Response (MVDR) interference canceler, a signal processing and D/B unit, and a transmission beamformer based on Minimum mean Square Error (MMSE). In addition, through the computer simulation, we evaluate and analyze the performance of the proposed system.

• Cartoon and Animation Studies
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• s.39
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• pp.321-348
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• 2015

The purpose of this study was to find a system and a progression principle in orchestral piece based on the outcome after comparatively analyzing the orchestral operation technique in "Battle for The Glory" out of the background music in the animation "Dragon Quest IV" by Koichi Sugiyama(1931~), who is a leading runner of Japan's animation music, based on functional parts daccord & Instrumentation Pattern, Rhythm Pattern, Voicing Pattern, and harmonic ratio by progression section devised by the writer. As a result, first, five themes in this music have specific instrumentation pattern, respectively. In a passage that is shown exposition, reprise, and representation in theme, the unity was emphasized by maintaining the same instrumentation pattern. On the contrary to this, a passage of being suggested new theme is being used the exchange method and addition & subtraction in musical instrument in order to strengthen diversity. Second, the voicing pattern is forming the vertical contrasting relationship of "thinness-thickness" on the whole. However, the diversity is being intensified that is changed into the structure of "thickness-thinness" in the third theme and of "thinness-thickness" that has two melodies in the fourth theme. Third, the rhythm pattern is forming the vertical contrasting relationship of "big-small" on the whole. However, the fifth theme is being given diversity with being changed into the structure of "small-big." Fourth, the harmony by progression section from the horizontal perspective is shown to be high in the proportion of unity in the section of being repeated and represented the theme and to be high in the proportion of diversity in the section of being suggested new theme. In this study, the balanced orchestral operation technique through the operation technique, which was used in this work, is what extracts the relationship of diverse proportions in the horizontal progression section based on the technique of vertical perspective. In this aspect, this analytical study is desired to be positioned as a new paradigm in establishing a theoretical system and an educational method in orchestration.

• The Journal of the Acoustical Society of Korea
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• v.21 no.4E
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• pp.146-155
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• 2002

We present a new technique for achieving source separation when given only a single charmel recording. The main idea is based on exploiting the inherent time structure of sound sources by learning a priori sets of time-domain basis functions that encode the sources in a statistically efficient manner. We derive a learning algorithm using a maximum likelihood approach given the observed single charmel data and sets of basis functions. For each time point we infer the source parameters and their contribution factors. This inference is possible due to the prior knowledge of the basis functions and the associated coefficient densities. A flexible model for density estimation allows accurate modeling of the observation, and our experimental results exhibit a high level of separation performance for simulated mixtures as well as real environment recordings employing mixtures of two different sources. We show separation results of two music signals as well as the separation of two voice signals.

• Journal of Korea Multimedia Society
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• v.18 no.8
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• pp.988-995
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• 2015

In 2013, Academy Award for Best Animated Short Film was granted to Walt Disney's short animation, (2012). With various aspects of its excellence, I focus on the very effective use of digital lightings and underscores for storytelling as its success factors. In this respect, this paper aims at analyzing the roles of the visual factors, especially tone, contrast, etc. created by lightings, and audio factors, especially underscores, in the film's story development. I find that can be characterized by the well-built story structure with distinct three acts. The main stream of the story is expressed with the overall mood that is created by the fine adjustments of brightness of the main light, and contrast. And the direction and the intensity of the lighting successfully describe the emotions of the characters in each scene. In addition, I find that properly chosen and positioned underscores make the development of the story more dynamic and more harmonized.

• Journal of Korean Academy of Nursing
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• v.27 no.4
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• pp.740-752
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• 1997

The purpose of this study was to identify structural patterns in the subjectivity of Taegyo in pregnant woman and to provide a basis for nursing interventions. Thirty pregrant women were the subjects of this study. They were in the gestation period of pregnancy between 12 weeks to five days post partum and they lived in the city of Taejon. The research method employed Q-methodology which is based on self-psychology and abductive logics. The results revealed three different types of the Taegyo ; 1) Peaceful mind type, listening to music and appreciation of art for quietness of mind and also the support and concern of husband. 2) Self control type, recognizes herself as a pregrant woman and trys to do her works spontaneously and also adapt herself to changing of circumstances. 3) Dependent oriented type, needs absolute help from the surroundings under the specific condition of pregnancy. This results show that investigating the specific experience, characteristic and structure of the Taegyo of a pregnant woman can be used as a part of the nursing assessment and also provides useful basic data of nursing interventions during pregnancy.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2008.10a
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• pp.197-217
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• 2008

본 논문에서는 현재 국내의 디지털 음악 콘텐츠 산업에서 이슈가 되고 있는 정액제와 수익배분 비율 문제를 중심으로 수리적 모형을 사용하여 분석하였다. 특히 국내의 현황을 반영하여 음원권리자와 이동통신사의 문제에 더욱 초점을 맞추었다. 본 논문의 연구결과는 다음과 같다. 첫째, 이동통신사와 음원권리자 사이에서는 정액제를 선택하든 종량제를 선택하든 중요하지 않을 수 있다는 것이다. 중요한 것은 음원권리자가 수익배분비율을 그리고 이동통신사가 음원판매소매가격을 자율적으로 결정할 수 있어야 한다는 것이고 두 게임참여자가 서로 이익을 얻을 수 있는 수익배분방법과 비율이 존재한다는 점이다. 둘째, 정액제는 오히려 소비자와 이동통신사간의 관계에 영향을 미치게 되는데 이동통신사에게는 유리하고 소비자에게는 불리하게 된다는 것이다. 특히, 이동통신사와 음원권리자가 수직적으로 통합되어 경쟁하는 시장구조하에서는 소비자에게 불리한 경향이 더욱 심화되므로 정액제 보다는 종량제 가격의 하락을 통해서 온라인 음악 시장의 성장을 유도하는 것이 소비자에게 유리하게 된다. 이와 같은 온라인 음악시장의 성장은 중장기적으로 사업자들에게도 도움이 될 것이다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.11a
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• pp.123-126
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• 2017

본 연구에서 미디어의 생산과 소비가 어떻게 사람들을 리미널한 형태로 사람들을 끌어들이는지 살펴보았다. 즉 미디어 생산의 주체 혹은 인기 있는 프로그램의 미디어 소비는 급격한 의식의 이탈을 만들어낸다. 2011년에 시작한 프로그램, '나는 가수다' 이후 지상파, 종합편성, 케이블채널에 음악프로그램, 특히 대중가요 중심의 노래 프로그램들이 대거 만들어졌다. 현재 큰 인기를 끌고 있는 '판타스틱 듀오'와 '나는 가수다' 속에 들어있는 제의적 속성인 리미널러티현상을 반 게넵(Arnold van Gennep)의 '통과의례'에 나타나는 전이 단계와 빅터 터너(Victor Turner)의 이론을 토대로 분석하였다. '전이'의 단계에 제의의 주체들은 사회적인 지위나 문화적인 상태의 속성들을 거의 가지고 있지 않은 일종의 사회적인 중간상태(social limbo)를 통과하게 된다. 미디어 이벤트로서의 리미널러티, 시청자, 가수와 도전자, 청중평가단의 일체감으로 일어나는 인지, 정서적 느낌과 그로 인한 코뮤니타스, 반구조((anti-structure) 상태를 분석하였다. 그리고 그 이후에 오는 위로와 위안 그리고 공감으로 이어지는 사회문화적 현상을 살펴보았다.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.142-144
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• 2000

오늘날, 컴퓨터 하드웨어와 네트워크의 발달로 인하여, 사용자의 멀티미디어 정보 검색 시스템에 대한 요구들이 높아져가고 있다. 이러한 멀티미디어 정보 검색 시스템에서 멀티미디어 정보는 그 해당 데이터의 고유한 성질에 알맞은 특징 정보로써 표현되며, 각각의 특징 정보를 이용하여 해당 멀티미디어 정보 검색을 위한 색인을 구성하고 사용자의 질의에 대해 검색을 수행하게 된다. 그러나 이미지나 비디오 등의 다른 멀티미디어 정보 검색에 비해, 음악 정보에 대한 검색은 아직 연구가 미비한 상태이므로 본 논문에서는 음악 정보로부터 추출된 특징 정보를 이용하여 음악정보의 다차원 색인을 구축함으로써, 사용자의 음악 질의에 대해서 보다 나은 기능들과 효율을 가지도록 내용 기반 음악 정보 검색 수행을 지원하는 정보 검색 기법을 제안한다.