• Title/Summary/Keyword: processing

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Design of SW Framework for Airborne Radar Real-time Signal Processing using Modular Programming (모듈화를 활용한 항공기 레이다 실시간 신호처리 SW Framework 설계)

  • Jihyun, Lee;Changki, Lee;Taehee, Jeong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.27 no.1
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    • pp.76-86
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    • 2023
  • Radars used by air-crafts have two important characteristics; First, they should have a real-time signal processing system finishing signal processing before deadline while getting and processing successive in-phase and quadrature data. Second, they can cover a lot of modes including A2A(Air to Air), A2G(Air to Gound), A2S(Air to Sea), and Ground Map(GM). So the structure of radar signal processing SWs in modern airborne radars are becoming more complicate. Also, the implementation of radar signal processing SW needs to reuse common code blocks between other modes for efficiency or change some of the code blocks into alternative algorithm blocks. These are the reason why the radar signal processing SW framework suggested in this paper is taking advantage of modular programming. This paper proposes an modular framework applicable on the airborne radar signal processing SW maintaining the real-time characteristic using the signal processing procedures for A2G/A2S as examples.

Development of a GPS Data Processing S/W for Cadastral Survey (지적측량을 위한 GPS 자료처리 S/W 개발)

  • 우인제;이종기;김병국
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.04a
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    • pp.507-512
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    • 2004
  • Research that establish new cadastral survey model that use GPS to introduce GPS observation technique in cadastral survey and research that develop connection technologies are gone abuzz. The purpose of this research is to keep in step in such trend and grasp present condition and performance of surveying connection to common use GPS data processing software, and analyze data processing algorithm, and develop suitable GPS data processing software in our real condition regarding GPS data processing and result of control point calculation. This research studies analysis common use software and error occurrence by data processing method that college and company have. Also, It analyzes algorithm that is applied to existing GPS data processing software. After that we study algorithm that is most suitable with cadastral survey and then develop cadastral survey calculation software for new cadastral control points

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An Implementation of Pipelined Prallel Processing System for Multi-Access Memory System

  • Lee, Hyung;Cho, Hyeon-Koo;You, Dae-Sang;Park, Jong-Won
    • Proceedings of the IEEK Conference
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    • 2002.07a
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    • pp.149-151
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    • 2002
  • We had been developing the variety of parallel processing systems in order to improve the processing speed of visual media applications. These systems were using multi-access memory system(MAMS) as a parallel memory system, which provides the capability of the simultaneous accesses of image points in a line-segment with an arbitrary degree, which is required in many low-level image processing operations such as edge or line detection in a particular direction, and so on. But, the performance of these systems did not give a faithful speed because of asynchronous feature between MAMS and processing elements. To improve the processing speed of these systems, we have been investigated a pipelined parallel processing system using MAMS. Although the system is considered as being the single instruction multiple data(SIMD) type like the early developed systems, the performance of the system yielded about 2.5 times faster speed.

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The Effects of Playing Video Games on Children's Visual Parallel Processing (아동의 전자게임 활동이 시각적 병행처리에 미치는 영향)

  • Kim, Sook Hyun;Choi, Kyoung Sook
    • Korean Journal of Child Studies
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    • v.20 no.3
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    • pp.231-244
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    • 1999
  • This study examined the effects of short and long term playing of video gamer on children's visual parallel processing. All of the 64 fourth grade subjects were above average in IQ. They were classified into high and low video game users. Instruments were a visual parallel processing task consisting of imagery integration items, computers, and the arcade video game, Pac-Man. Subjects were pre-tested with a visual parallel processing task. After one week, the experimental group played video games for 15 minutes, but the control group didn't play. Immediately following this, all children were post-tested by the same task used on the pretest. The data was analyzed by ANCOVA and repeated measures ANOVA. The results showed that relaying short-term video games improved visual parallel processing and that long term experience with video games also affected visual parallel processing. there were no differences between high and low users in visual parallel processing after playing short term video games.

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The Optimization Processing on a Expanded Tube Using Mini-Tab (Mini-Tab을 이용한 D-Tube 확관 최적 공정 설계)

  • Joo, Won-Kyung;Kwun, Yong-Gu;Bae, Sung-In;Song, Jung-Il
    • Proceedings of the KSME Conference
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    • 2007.05a
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    • pp.751-755
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    • 2007
  • The purpose of this study is to find the optimization processing on expanded tube using Taguchi method which was generally used to analyze the effects of various control factors. Mini-Tab is a good for program that is making a selection using Taguchi method. The results of experimental test and analysis are as follows. Optimization processing on a expanded tube is dependent on lubrication condition. The slight eccentricity of expanded tube was obtained a good results on the expanded tube. When expending processing on the expanded tube was performed, the test specimens were almost unaffected by changing pressure loading. The tendencies of test results were related to lubrication condition and eccentricity in expending processing. As a result, a proper lubrication condition and eccentricity in the step of design will improve the optimization processing of expanded tube.

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Applying Multi-objective Mathematical Programming Model for Business Planning of Eco-friendly Agrifood Processing Enterprise in Korea (친환경농식품 가공업체의 경영계획 수립을 위한 다목표 수리계획모형의 적용 방안)

  • Cho, Wan-Hyung
    • Korean Journal of Organic Agriculture
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    • v.26 no.2
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    • pp.181-202
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    • 2018
  • Most of eco-friendly agrifood processing enterprises in Korean rural area are small and medium-sized business. For this reason, it's hard for eco-friendly agrifood processing enterprises to neither analyze business performance for efficient business management nor establish their own business plan for rational decision-making. Therefore it's necessary to design effective mathematical programming model and to make practical application which can support rational management decision-making ensuring the stable business activity of eco-friendly agrifood processing enterprises. Accordingly this paper focuses on the designing and its application of multi-objective mathematical programming model using goal programming to support rational decision-making of eco-friendly agrifood processing enterprise. Hansalimanseongmachum Food Inc. which runs soy bean processing business making tofu based on regional-based soybean farms around Anseong City will be the specific case to apply multi-objective mathematical programming model in practice. And it will suggest measures to support rational management decision-making of other eco-friendly agrifood processing enterprises.

The Positive Study on Consumer Behavior of Korean Housewives about Meat Processing Products - I. Consummer's Recognition on Meat Processing Products - (한국주부(韓國主婦)의 육가공(肉加工) 구매행동(購買行動)에 관한 실증적(實證的) 연구(硏究) - 육가공품(肉加工品)에 대한 소비자(消費者) 인식분석(認識分析) -)

  • Yun, Maeng-Ho
    • Journal of the Korean Society of Food Culture
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    • v.1 no.3
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    • pp.219-229
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    • 1986
  • The consumption of meat processing products in was creased in Korean recently. Morever the demand of tasted meat processing products being gradual increase in general tendency, and so we expect that in the continuing of westernizing for food life and universalizing of urvanism, the demand of meat processing products. In order to improve the marketing strategies for the meat processing industries, consummeris particular behaviors were analyzed as for consummer's recognition, recognition of problem, the evaluation of substitutional proposal, the decision of purchasing intention an purchasing behavior and the evaluation of post-purchasing to the meat processing products.

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Concurrency Control Method to Provide Transactional Processing for Cloud Data Management System

  • Choi, Dojin;Song, Seokil
    • International Journal of Contents
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    • v.12 no.1
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    • pp.60-64
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    • 2016
  • As new applications of cloud data management system (CDMS) such as online games, cooperation edit, social network, and so on, are increasing, transaction processing capabilities for CDMS are required. Several transaction processing methods for cloud data management system (CDMS) have been proposed. However, existing transaction processing methods have some problems. Some of them provide limited transaction processing capabilities. Some of them are hard to be integrated with existing CDMSs. In this paper, we proposed a new concurrency control method to support transaction processing capability for CDMS to solve these problems. The proposed method was designed and implemented based on Spark, an in-memory distributed processing framework. It uses RDD (Resilient Distributed Dataset) model to provide fault tolerant to data in the main memory. In our proposed method, database stored in CDMS is loaded to main memory managed by Spark. The loaded data set is then transformed to RDD. In addition, we proposed a multi-version concurrency control method through immutable characteristics of RDD. Finally, we performed experiments to show the feasibility of the proposed method.

Effects of the Processing Temperature and the Number of Passes of Equal Channel Angular Pressing on the Microstructure and Hardness of IF Steel (IF강의 미세조직과 경도에 미치는 ECAP 가공온도와 가공횟수의 효과)

  • Yoon, S.C.;Ryu, W.S.;Baik, S.C.;Kim, H.S.
    • Transactions of Materials Processing
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    • v.16 no.5 s.95
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    • pp.406-411
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    • 2007
  • The microstructure and the hardness of interstitial free steel processed by equal channel angular pressing (ECAP) was investigated experimentally. ECAP processing of route A and route C was compared with regard to grain refinement by transmission electron micrographs. Micro hardness evolution was correlated with the gram structure produced by ECAP. Especially, the effects of the ECAP processing temperature and the number of processing passes were discussed in terms of grain refinement.