• 전기의세계
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• v.33 no.1
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• pp.14-25
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• 1984

전자공업은 방위산업발달에 획기적인 역활을 담당하고 있으며, 특히 전략적 $C^{3}$I (Command, Control, Communication and Intelligence) 개념을 도입하여, 국가방위를 위한 연구가 미국의 여러 대학들과 국방성 산하 연구기관에서 활발히 진행되고 있다. 이 글에서는 $C^{3}$I 에 대한 개략적인 개념을 소개하고, 추계학적 (Stochastic) 관점에서 $C^{3}$I 가 실전을 위하여 어떻게 응용되고 있는 가를 고찰하기 위하여 최근에 발표되고 있는 비선형필터링(Nonliner Filtering), 적응형필터링(Adaptive Filtering), 최적제어 문제들을 소개하고자 한다.

• Defense and Technology
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• no.1 s.275
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• pp.58-67
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• 2002

미래 전쟁에 대비하기 위하여, 미국은 합동참모본부의 Joint Vision 2020에서 정보에서의 우월성을 기초로 압도적인 기동, 정확한 공격, 집중된 군수지원, 전면적인 방어를 이룩하여 전체적인 우위전력 확보를 도모하며, 정보에서의 우월성 확 보 를 위 해 $C^4ISR$(Command, Control, Communication and Computer, Intelligence, Surveillance, Reconnaissance) 개념에 의한 통합체계의 구축을 목표로 제시하고 있다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.05a
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• pp.215-221
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• 2005

In this paper, we propose a method to a synchronization of chaotic UAVs that have unstable limit cycles in a chaos trajectory surface. We assume all obstacles in the chaos trajectory surface have a Van der Pol equation with an unstable limit cycle. The proposed methods are assumed that if one of two chaotic UAVs receives the synchronization command, the other UAV also follows the same trajectory during chaotic UAVs search on the arbitrary surface.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.319-320
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• 2018

여러 단계를 걸쳐 이루어지는 RNA-seq 분석 과정을 한 번에 처리할 수 있는 shell script 파이프라인을 구축하였다. 연구자들로 하여금 trimming, quality control, mapping, assembly, quantification 등 개별 과정을 거치지 않고, 한 줄의 커맨드 라인(command line) 만으로 유전자 발현량과 상대적 발현량 차이를 확인할 수 있는 fold change(FC) 값까지 얻을 수 있도록 하였다.

• Journal of the Korean Society for Precision Engineering
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• v.1 no.3
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• pp.26-40
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• 1984

전자공업은 방위산업발달에 획기적인 역할을 담당하고 있으며, 특히 전략적 $C^{3}$/I( Command, Control, Communication, and Intelligence) 개념을 도입하여, 국가방위를 위한연구가 미국의 여러 대학들과 방위성 산하 연구기관에서 활발히 진행되고 있다. 이 글에서는 $C^{3}$/I에 대한 개략적인 개념을 소개하고, 추계학적(Stochastic) 관점에서 $C^{3}$/I가 실전을 위해 어떻게 응용되고 있는가를 고찰하기 위하여 최근에 발표되고 있는 비 선형필터링(Nonlinear Filtering), 적응필터링(Adaptive Filtering) 최적제어 문제들을 소개하고자 한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.05b
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• pp.318-321
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• 2003

최근 ITU와 FS-VDSL 등의 국제 표준 기구에서 ATM과 IP 기반에서 VDSL 기술을 이용한 VOD 서비스 실현을 위해 서비스, 망 구조 및 프로토콜 등에 대해 연구가 진행 중에 있다 본 논문에서는 ATM/VDSL 기반의 VOD 서비스 제공을 위해 종단간 ATM 모델의 망 구성과 프로토콜 스택을 제시하고 분석한다. 그리고, 이 모델에 대해 IGMP (Internet Group Management Protocol)HTSP(Real Time Streaming Protocol)와 DSM-CC (Digital Storage Media Command and Control) 을 이용하는 서버와 셋탑박스 간의 VOD 서비스 신호 절차를 제안하고 분석한다.

• Journal of Electrical Engineering and information Science
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• v.1 no.2
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• pp.101-108
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• 1996

A new speed controller based on the fuzzy algorithm with hierarchical structure is presented. The input variables of the controller are speed error and its derivative(change of error), where the output variable is the change of torque current command. Several comparisons were performed with conventional PI (proportional plus integral) controller and proposed controller. These controllers are applied to the laboratory model drive system with 2.2kW induction motor. Some simulation and experimental results show that the speed controller using fuzzy algorithm is more robust than the conventional PI controller.

• 제어로봇시스템학회:학술대회논문집
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• 2004.08a
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• pp.2005-2010
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• 2004

As robots become more prevalent in human daily life, situations requiring interaction between humans and robots will occur more frequently. Therefore, human-robot interaction (HRI) is becoming increasingly important. Although robotics researchers have made many technical developments in their field, intuitive and easy ways for most common users to interact with robots are still lacking. This paper introduces a new approach to enhance human-robot interaction using a semantic symbol language and proposes a method to acquire the intentions of robot users. In the proposed approach, each semantic symbol represents knowledge about either the environment or an action that a robot can perform. Users'intentions are expressed by symbolized multimodal information. To interpret a users'command, a probabilistic approach is used, which is appropriate for interpreting a freestyle user expression or insufficient input information. Therefore, a first-order Markov model is constructed as a probabilistic model, and a questionnaire is conducted to obtain state transition probabilities for this Markov model. Finally, we evaluated our model to show how well it interprets users'commands.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.11
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• pp.2385-2390
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• 2010

The PRC-999K radio widely used in Korean Army is half-duplex and also has the broadcasting radio wave character that all subscribers listen when one subscriber speaks in time. The radio data communication system configures a 1:1 unicast network between a command post and network members in a military fire control system. The system also applies CSMA/CA technique to avoid data collision and additionally applies SDLC protocol for efficiency and fast communication. This paper shows that allocating address to network members in serial order can reduce data transmitting/receiving time, and thereby a command post needs to broadcast data only one time and the assigned members can reply in order without data collision. It is validated through an experimental test.

• Smart Structures and Systems
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• v.8 no.1
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• pp.39-52
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• 2011

We are developing a biomimetic robot based on the Sea Lamprey. The robot consists of a cylindrical electronics bay propelled by an undulatory body axis. Shape memory alloy (SMA) actuators generate propagating flexion waves in five undulatory segments of a polyurethane strip. The behavior of the robot is controlled by an electronic nervous system (ENS) composed of networks of discrete-time map-based neurons and synapses that execute on a digital signal processing chip. Motor neuron action potentials gate power transistors that apply current to the SMA actuators. The ENS consists of a set of segmental central pattern generators (CPGs), modulated by layered command and coordinating neuron networks, that integrate input from exteroceptive sensors including a compass, accelerometers, inclinometers and a short baseline sonar array (SBA). The CPGs instantiate the 3-element hemi-segmental network model established from physiological studies. Anterior and posterior propagating pathways between CPGs mediate intersegmental coordination to generate flexion waves for forward and backward swimming. The command network mediates layered exteroceptive reflexes for homing, primary orientation, and impediment compensation. The SBA allows homing on a sonar beacon by indicating deviations in azimuth and inclination. Inclinometers actuate a bending segment between the hull and undulator to allow climb and dive. Accelerometers can distinguish collisions from impediment to allow compensatory reflexes. Modulatory commands mediate speed control and turning. A SBA communications interface is being developed to allow supervised reactive autonomy.