• Title/Summary/Keyword: Gyrocompassing

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Application of Kalman filtering technique to initial axes alignment of SDINS (SDINS의 좌표축 초기 배열에 관한 칼만 필터링 기법의 응용)

  • 최근국;이만형
    • 제어로봇시스템학회:학술대회논문집
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    • 1986.10a
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    • pp.290-294
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    • 1986
  • Initial alignment of gimballed INS is accomplished by the gyrocompassing techniques. These cannot be used in the case of strapdown system where the inertial instruments are directly strapped down to a vehicle frame. The basic objective of this paper is the development of digital methods performing the initial alignment of a SDINS from vibration and sway currupted data on the launch pad.

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Application of Kalman Filtering Technique to Initial Axes Erection of SDINS (SDINS의 좌표축 초기 직립에 관한 칼만 필터링 기법의 응용)

  • Choe, Geun-Guk;Lee, Man-Hyeong;Kim, Jung-Wan
    • Journal of the Korean Society for Precision Engineering
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    • v.4 no.4
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    • pp.56-71
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    • 1987
  • Determination of navigation variables (latitude, longitude, and altitude) near the earth's surface is termed 'Terrestrial Navigation'. The quantities that are measured inertially are the total acceleration (or the integral fo this acceleration over a fixed time interval) and the total angular rate (or the integral of this angular rate over the same time interval). These measurements when suitably compensated can be manipulated to yield the navigation variables. Hence, it is essential that the initial values of position, orientation and velocity are accurately set up during the initial alignment process. Initial alignment of gimballed inertial navigation system ( GINS) is accomplished by gyrocompassing techniques. These cannot be used, in the case of strapdown inertial navigation system(SDINS), where the inertial instruments are directly strapped down to a vehicle frame. The basic objective of this paper is the development of digital method for the determination of the initial axes erection of a SDINS from vibration and sway currupted data on the launch pad.

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Study on the Algorithm Characteristic of True North-Finding Utilizing 1-axis Gyro Sensor Equipment (1-축 자이로센서를 이용한 진북 추종 알고리즘 특성에 관한 연구)

  • Choi, Ju-Ho;Kwon, Young;Lee, Dae-Chul;Chung, Han-Shik;Jeong, Hyo-Min
    • Journal of Power System Engineering
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    • v.19 no.3
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    • pp.36-41
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    • 2015
  • The true north-finding equipment utilizing gyro sensor is used for INS(Inertial Navigation System) and has an increasing preference for gyro compass system due to compact size, lightening, low power and price. The purpose of this experiment is to research gyro compass system providing high performance in the field of manned or unmanned gyro compass system which proposes the accuracy of 1% utilizing experimented equipment at true north of the earth. Unlike the conventional system, the proposed gyro sensor system indicates to be applied in the various and specific equipment using multiple technique and method.