• Title/Summary/Keyword: Pluse Recognition

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Recognition and tracking system of moving objects based on artificial neural network and PWM control

  • Sugisaka, M.
    • 제어로봇시스템학회:학술대회논문집
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    • 1992.10b
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    • pp.573-574
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    • 1992
  • We developed a recognition and tracking system of moving objects. The system consists of one CCD video camera, two DC motors in horizontal and vertical axles with encoders, pluse width modulation(PWM) driving unit, 16 bit NEC 9801 microcomputer, and their interfaces. The recognition and tracking system is able to recognize shape and size of a moving object and is able to track the object within a certain range of errors. This paper presents the brief introduction of the recognition and tracking system developed in our laboratory.

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Development of DDL(Digital Delay Line) Module Using Interleave Method Based on Pulse Recognition and Delay Gap Detection (펄스 인식 및 지연 간격 검출을 통한 인터리브 방식의 디지털 시간 지연 모듈 개발)

  • Han, Il-Tak
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.22 no.6
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    • pp.577-583
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    • 2011
  • Radar performance test is one of the major steps for radar system design. However, it is restricted by time and cost when radar performance tests are performed with opportunity targets. So various simulated target generators are developed and used to evaluate radar performance. To simulate the target's range, most of simulated target generators are developed with optical line or DRFM(Digital RF Memory) technique but there are many restrictions such as limit of range imitation and test scenario because of their original usage. In this paper, DDL(Digital Delay Line) module for development of simulated target generator is designed with precise range simulation and easily embodiment feature. And pulse recognition and delay gap detection technique are used to simulate the time delay without distortions. Developed DDL module performances are verified through their performance tests and test results are described in this paper.