• 복식
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• 제62권7호
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• pp.29-40
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• 2012

Using the official marker of the Korea's national symbol to inform the world of the country's existence to the global community in the $21^{st}$century enhances the autonomy and the competitiveness of Korea. It is thought that selecting a motif for promoting the national identity through cultural products or costumes can prepare an opportunity for gaining competitiveness internationally. The purpose of this study is to enhance understanding on the use of a traditional Korean symbol, Mugunghwa, and how it increases the cultural value of Korea, and develops the modern Korean image. The specific contents of this study are as follow. First, searching for the scope of usage of the national flower Mugunghwa from various angles for enhancing the Korean image. Second, developing a national symbol image of modern sense that reflects trend by using Mugunghwa. Third, clarifying the application scope and role of the national symbol image using Mugunghwa, and present a specific usage plan for creating more value. As for the study method, the study is conducted through theoretical and empirical research and six pieces of work of modern Mugunghwa image are presented as the result. Based on the development of the image of Mugunghwa as a national symbol, this study proposed a role of a cultural ambassador by applying Mugunghwa to fashion products or costumes. As for the expected effect, it can provide an opportunity for developing another national symbol and a new perspective on national symbol will appear. It is thought that the cultural value of a national symbol can be understood through this study and it can provide an opportunity for developing various national symbols for enhancing the national image.

• 패션비즈니스
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• 제15권5호
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• pp.55-68
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• 2011

The purpose of this research is to study the visual characteristics of domestic national men's wear brand logos. For this purpose, 80 of national men's wear brands were selected from '2010/2011 Korea fashion brand Annual' For analysis, they were classified into three categories: logo types composed only with logomark or symbol and logomark together. Types of symbol were classified into word symbol, descriptive symbol, and abstractive symbol. And the used typefaces were classified into serif and san serif and acromatic and cromatic The results are as follows: The visual characteristics of domestic national men's wear brand logos, there were more brands that used logomark with symbol together than logomark only. And the type of symbols were appeared descriptive symbol(32% ) that meaned the men's power, nobleness and royalty. In domestic national men's wear brands, color of logos were more frequently used acromatic color as black and grey than cromatic color. Among the cromatic colors were more appeared to a kind of blue and green. And the used typefaces were the more frequently used to serif typeface of capital. As a result, the visual characteristics of domestic national men's wear brand logo were that they used the brand logos composed of descriptive logomark with symbol together, black serif typeface the most. From this results, we could find that visual stragety of domestic national men's wear brand logos had the tendency to emphasize the function of conveying information, brand concept that men's wear. The specific and continuous following research in which psychological factor of consumer reflected was requested as a measure to seek brand logo that aid to establish brand power and reinforce brand image.

• 한국의류학회지
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• 제31권7호
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• pp.1097-1106
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• 2007

The purpose of this study is for development textile design and making fabric actually for dementia patients hospital clothing using symbol which has social care meaning. For achievement the aim, process and research methods were as follows. First the symbol design was developed. Second the symbol was applied as textile design for dementia patients hospital clothing. Symbol design was under processed with a letter 'Alzheimer' and meanings as like 'love', 'happiness' 'care' 'hope' and 12 design samples were developed by CAD and photoshop. Total 15 evaluation members chose 2 design samples. The 2 design sample were practically arrangement 7 textile design pattern with ground different colors. And finally 3 design pattern and 3 colorway were selected and add white ground. Totally 7 textile design was printed on 100% cotton, 20 yarn count, 1/2 twill. Therefore this new textile design for dementia patient's hospital clothing can be used in medical clinically and the symbol can be use for daily care item for the patients more comfort and high quality in their lives in hospital.

• 스마트미디어저널
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• 제7권2호
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• pp.23-33
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• 2018

A musical sheet is read by optical music recognition (OMR) systems that automatically recognize and reconstruct the read data to convert them into a machine-readable format such as XML so that the music can be played. This process, however, is very challenging due to the large variety of musical styles, symbol notation, and other distortions. In this paper, we present a model for the recognition of musical symbols through the use of a mobile application, whereby a camera is used to capture the input image; therefore, additional difficulties arise due to variations of the illumination and distortions. For our proposed model, we first generate a line adjacency graph (LAG) to remove the staff lines and to perform primitive detection. After symbol segmentation using the primitive information, we use a covariance-matching method to estimate the similarity between every symbol and pre-defined templates. This method generates the three hypotheses with the highest scores for likelihood measurement. We also add a global consistency (time measurements) to verify the three hypotheses in accordance with the structure of the musical sheets; one of the three hypotheses is chosen through a final decision. The results of the experiment show that our proposed method leads to promising results.

• Journal of Communications and Networks
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• 제18권1호
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• pp.40-49
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• 2016

In this paper, we present a symbol-level iterative source-channel decoding (ISCD) algorithm for reliable transmission of variable-length codes (VLCs). Firstly, an improved source a posteriori probability (APP) decoding approach is proposed for packetized variable-length encoded Markov sources. Also proposed is a recursive implementation based on a three-dimensional joint trellis for symbol decoding of binary convolutional codes. APP channel decoding on this joint trellis is realized by modification of the Bahl-Cocke-Jelinek-Raviv algorithm and adaptation to the non-stationary VLC trellis. Simulation results indicate that the proposed ISCD scheme allows to exchange between its constituent decoders the symbol-level extrinsic information and achieves high robustness against channel noises.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.225-226
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• 2014

본 논문에서는 색이 가지는 연상적인 언어를 살펴보도록 한다. 또한 색의 연상 작용은 경험에 의한 상징을 동반하는 심리적 활동에도 관계 한다. 따라서 상징과 그 치료 및 효과도 살펴보도록 한다.

• ETRI Journal
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• 제46권4호
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• pp.595-603
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• 2024

This paper presents methods for reducing the peak-to-average power ratio (PAPR) of the orthogonal time frequency space (OTFS) signal. These methods mainly consist of two operations: symbol interferometry (SI) and either 𝜇-law or A-law companding. SI spreads the data of one OTFS symbol onto all symbols and is implemented using a simple inverse fast Fourier transform operation on each OTFS symbol. During the second operation, the PAPR of the OTFS signal is significantly reduced. For our performance analysis, the complementary cumulative distribution function, probability density function, and bit error rate are illustrated through simulations performed in MATLAB. The performance is also analyzed using a solid-state power amplifier at the transmitter and compared with OTFS, 𝜇-law-based OTFS, and SI OTFS systems. The results indicate that the proposed OTFS system achieves a low PAPR.

• 한국인터넷방송통신학회논문지
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• 제14권5호
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• pp.117-121
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• 2014

직교 주파수 분할 다중화 방식 시스템에서는 유효 심벌의 구간에서 푸리에 변환을 수행하기 위하여 데이터 심벌 사이의 보호 구간을 제거해야 한다. 이러한 과정은 정확한 심벌 타이밍 검출을 기반으로 수행되어야 한다. 수신단에서 심벌 타이밍 검출은 프리앰블과 페이로드부의 경계의 시작점은 각 심벌의 인덱스 시작 시점을 결정하는 기준을 제공한다. 또한 이 과정에서 발생하는 검출 에러는 전체 시스템 성능의 영향을 주는 중요한 요소 중 하나이다. 본 논문에서는 심벌 타이밍 검출장치에서 이동 평균 필터의 대역폭이 미치는 영향에 대해 논의한다. 이동 평균 필터 대역폭과 연관된 이동 평균 필터의 윈도우 크기의 값을 가변하여 시뮬레이션을 수행하고 이를 통하여 검출 성능에 미치는 영향을 분석한다.

• Journal of Communications and Networks
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• 제2권1호
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• pp.58-68
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• 2000

In this paper we introduce the correlation-aided distributed sample acquisition (CDSA) scheme for fast cell search in IMT-2000 W-CDMA cellular system. The proposed scheme incorporates the state symbol correlation process into the comparison-correction based synchronization process of the original DSA scheme to enable fast acquisition even under very poor channel environment. for its realization, each mobile station (MS) has to store in its memory a set of state sample sequences. which are determined by the long-period scrambling sequences used in the system and the sampling interval of the state samples. CDSA based cell search is carried out in two stages : First, the MS first acquires the slot timing by using the primary synch code (PSC) and then identifies the igniter code which conveys the state samples of the current cell . Secondly. the MS identifies the scrambling code and frame timing by taking the comparison-correction based synchronization approach and, if the identification is not done satisfactorily within preset time. it initiates the state symbol correlation process which correlates the received symbol sequence with the pre-stored state sample sequences for a successful identification. As the state symbol SNR is relatively high. the state symbol correlation process enables reliable synchronization even in very low chip-SNR environment. Simulation results show that the proposed CDSA scheme outperforms the 3GPP 3-step approach, requiring the signal power of about 7 dB less for achieving the same acquisition time performance in low-SNR environments. Furthermore, it turns out very robust in the typical synchronization environment where large frequency offset exists.

• 한국전자파학회논문지
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• 제19권4호
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• pp.461-469
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• 2008

본 논문은 MIMO OFDM 시스템에 적용 가능한 하이브리드 심볼 옵셋 추정 알고리즘을 제안한다. MIMO OFDM 시스템은 다중 송수신 안테나 시스템이므로 종래의 단일 송수신 안테나 시스템에 적용되는 알고리즘과는 다르게 다중 수신 안테나 시스템에서 사용하는 결합 기법을 고려하여 사용할 수 있다. 따라서 본 논문에서는 MIMO OFDM 시스템과 같은 다중 수신 안테나 시스템에서 적용 가능한 심볼 옵셋 추정 알고리즘을 제안하고, MIMO 시스템 환경에서 모의 실험하였으며, ISI가 심한 채널의 경우에는 제안하는 동일 이득 결합 상관 관계 알고리즘이 종래의 이른 심볼 옵셋 추정 알고리즘보다 이상적인 샘플 위치를 찾는 성능이 1.8배 우수함을 제시하였다.