• Title/Summary/Keyword: Elint System

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A Technology of Information Data Fusion between Radar and ELINT System

  • Lim, Joong-Soo
    • International Journal of Contents
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    • v.3 no.4
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    • pp.22-25
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    • 2007
  • This paper presents a technology of information data fusion between radar and ELINT electronic intelligence system. adar get the information of the range, direction and velocity of targets, and ELINT system get the information of the direction and angular velocity of the same targets at the same place and at the same time. Since we have some common information data of targets from radar and ELINT system, we can find the target on radar is same or not on ELINT system using the information data fusions. If the target on the radar is verified with the same target on ELINT system, we get more information of the target. e can analysis and identify the target exactly and reduce an ambiguity error of unknown targets.

A Research on Tac-ELINT SW Development Method Using M&S System (M&S 시스템을 활용한 Tac-ELINT 지상운용 SW 개발 방안 연구)

  • Shin, Dong-Cho;Kwak, Hyun-Gyu;Lee, Kwang-Il
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.6
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    • pp.1058-1066
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    • 2011
  • This research paper on Tac-ELINT SW development method using M&S system describes the validation and verification methods of Tac-ELINT ground operating software development each stages, and the method of improving reusability of software using SBD(Simulation Based Design/Development) concept. In this project, We obtain the EW software SBD technologies and improved Tac-ELINT ground operating software through software crisis mitigation. This method and technology will expect to support a future EW system and any other various weapon software development.

A Study on Electromagnetic Environmental Effects(E3) Test and Evaluation of Fighter Equipped with ELINT Pod (ELINT 포드를 장착한 전투기의 전자기 환경 영향(E3) 시험평가에 관한 연구)

  • Kim, In-Seon;Park, Young-Ju;Choi, Dae-Kyu;Kim, Jang-Pyo;Lee, Byeong-Nam
    • Journal of the Korea Institute of Military Science and Technology
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    • v.15 no.3
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    • pp.288-297
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    • 2012
  • This paper describes the verification test on Electromagnetic Environmental Effects(E3), which conducted on ground as a final step to confirm the normal operation of ELINT pod and Safety-of-Flight of KF-16C/D mounted with ELINT pod prior to the initial flight. Based on MIL-STD-464A, indispensable 7 requirements among 14 detailed requirements total were carried out in the test. Considering the Safety-of-Flight(SOF), we invest a great deal of time and effort on Hazards of Electromagnetic Radiation to Ordnance(HERO) and Intra-system EMC test. E3 test and evaluation were performed on 62 equipments of KF-16C/D, respectively. As a result, we verify that KF-16C/D mounted with ELINT pod(hereafter "system") are electromagnetically compatible among all subsystems and equipment within the system and with environments caused by electromagnetic effects external to the system.

An Experimental Study on Millimeter Wave Band Radome for ELINT Directional Finding System (ELINT 방향탐지 시스템에 적용되는 밀리미터파 대역 레이돔에 대한 실험적 연구)

  • Kim, Tae-Hyun;Park, Boem-Jun;Lee, Jung-Hoon;Lee, Byung-Nam
    • Journal of the Korea Institute of Military Science and Technology
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    • v.15 no.2
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    • pp.161-168
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    • 2012
  • In this paper, we have experimentally studied on phase characteristics of airborne radome for ELINT directional finding system, because it is difficult to find theoretical solutions for phase error of the radome. Especially, we described the millimeter wave band radome that was fabricated with cyanate-ester material and its thickness was 2mm. We presented the phase error about millimeter band radome. That phase error is about 30 degrees for parallel and perpendicular polarization in the K-Ka band. That is reasonable value for the ELINT directional finding system.

An Analysis of Direction Finding Accuracy of ELINT System (TDOA 기법을 활용한 ELINT 장비의 방위탐지 정확도 분석)

  • Lim, Joong-Soo;Chae, Gyoo-Soo;Kim, Min-Nyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.11
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    • pp.3104-3109
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    • 2009
  • The technology of direction finding is very important to find the direction of emitters for ELINT(electronic intelligence) system. The principle of TDOA(time difference of arrival) is to receive an emitter signal with two antennas, measure the time difference between two antennas, and converse the time difference to direction difference. This technology can be used in broadband frequency system and make the system very simple because a phase-discriminator and a voltage comparator are not needed. For fine DF accuracy, high time resolution receiver and long basis line antennas are needed. The DF accuracy of noise added signals is simulated with different time

China's Satellite Research and Development to Collect Electronic Signals for Marine Reconnaissance to Surrounding Nations (중국의 주변국 해양감시를 위한 전자신호 수집위성 연구개발)

  • Lee, Yongsik;Aom, Sangho;Lim, Jaesung
    • Journal of Satellite, Information and Communications
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    • v.12 no.3
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    • pp.54-62
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    • 2017
  • China has invested for military satellite technology development to construct the space-based surveillance system from existing land-based and aerostat surveillance system since 1960s to react rapidly for deployment of marine force of United States and surrounding nations in west Pacific, south China sea and Indian ocean. China has also launched about 40 the Yaogan military intelligence satellites series for EO, SAR and ELINT fields since 2006 after the required technique with several technical experiment satellites launch and operational test. ELINT satellites transmit data from satellite to earth station in real time with construction space-based network around it. Those data are simultaneously delivered to Anti-Ship Ballistic Missile(ASBM) connected land-based C4ISR network for marine target attack. Therefore China has enhanced surveillance and attack capability to the surrounding marine nations with space-based network around it. In the future, It is considered that China will increase accurate location search, signal processing and analysis ability through a further study on its technology.

ELINT Intra-pulse Modulation Recognition using Fuzzy Algorithm (퍼지 알고리즘을 이용한 전자정보의 펄스 내 변조 인식)

  • Kim, Young-Min
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.9
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    • pp.1986-1995
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    • 2013
  • The ELINT system which derives intelligence from electromagnetic radiations plays an important role in modern electric warfares. Among radar characteristics inferred from the signals, intra-pulse modulation scheme is a useful feature to identify modern radars. This paper proposes the method to classify intra-pulse modulation schemes such as UM, PSK, BFSK, QFSK, LFM and NLFM based on the fuzzy algorithm. The proposed method defines fuzzy membership functions to characterize input signals, and then it calculates accordance rates for each modulation scheme with fuzzy inference rules. The experimental results show that the probability of correct recognition is more than 95% for SNR > 10dB.

Identification Algorithm for Up/Down Sliding PRIs of Unidentified RADAR Pulses With Enhanced Electronic Protection (우수한 전자 보호 기능을 가진 미상 레이더 펄스의 상/하 슬라이딩 PRI 식별 알고리즘)

  • Lee, Yongsik;Kim, Jinsoo;Kim, Euigyoo;Lim, Jaesung
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.41 no.6
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    • pp.611-619
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    • 2016
  • Success in modern war depends on electronic warfare. Therefore, It is very important to identify the kind of Radar PRI modulations in a lot of Radar electromagnetic waves. In this paper, I propose an algorithm to identify Linear up Sliding PRI, Non-Linear up Sliding PRI and Linear Down Sliding PRI, Non-Linear Down Sliding PRI among many Radar pulses. We applied not only the TDOA(Time Difference Of Arrival) concept of Radar pulse signals incoming to antennas but also a rising and falling curve characteristics of those PRI's. After making a program by such algorithm, we input each 40 data to those PRI's identification programs and as a result, those programs fully processed the data in according to expectations. In the future, those programs can be applied to the ESM, ELINT system.

An Algorithm for De-Interleaving of Wobble and Sinusoidal PRIs for Unidentified Radar Signals (미상 레이더의 Wobble 및 Sinusoidal PRI 식별 알고리즘)

  • Lee, Yongsik;Lim, Joongsoo;Lim, Jaesung
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.26 no.12
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    • pp.1100-1107
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    • 2015
  • In this paper, we propose an algorithm to identify Wobble PRI and Sinusoidal PRI among Radar pulses. We applied not only the DTOA(Difference Time Of Arrival) concept of radar pulse signals incoming to antennas but also a rising and falling cub characteristic of those PRIs. After making a program by such algorithm, we input each 40 data to Wobble PRI's and Sinusoidal PRI's identification programs and in result, those programs fully processed the data the according to expectations. In the future, those programs can be applied to the ESM, ELINT system.

The Development of an airbone-based direction-finding system for EW application (항공기 외장형.전자전 방향탐지장치 개발)

  • 전병태;박영미;최도원;박문복;임중수
    • Journal of the Korea Institute of Military Science and Technology
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    • v.5 no.3
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    • pp.98-104
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    • 2002
  • An airborne-based Direction-Finding System is developed for the application of ELINT and ES(Electronic Support). The system takes the phase-comparison technology, and has the configuration of multi-based antenna array for the solution of ambiguity due to the increased Direction-Finding resolution. This thesis describes the design of optimized distances among antennas, the electrical characteristics, the method of compensation, the direction-finding accuracy, and et. al. under the condition of the airborne-based environment.