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Acta Optica Sinica, Volume. 39, Issue 5, 0528001(2019)

Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform

Shaoshuo Mu1、* and Chuan Qiao2
Author Affiliations
  • 1 School of Electronics and Information Technology, Communication University of Zhejiang, Hangzhou, Zhejiang 310018, China
  • 2 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    Figures & Tables(14)
    ECEF coordinate system

    Fig. 1. ECEF coordinate system

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    ECEF coordinate and NED coordinate sysems

    Fig. 2. ECEF coordinate and NED coordinate sysems

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    NED and AC coordinate systems

    Fig. 3. NED and AC coordinate systems

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    Structural diagram of airborne electro-optical platform

    Fig. 4. Structural diagram of airborne electro-optical platform

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    Schematic of target projection on detector

    Fig. 5. Schematic of target projection on detector

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    Flow chart of extended Kalman filtering

    Fig. 6. Flow chart of extended Kalman filtering

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    Flight path and measurement points in simulation

    Fig. 7. Flight path and measurement points in simulation

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    Simulation test. (a) Geo-location results; (b) geo-location errors

    Fig. 8. Simulation test. (a) Geo-location results; (b) geo-location errors

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    Influence of initial position guess on target geo-location accuracy

    Fig. 9. Influence of initial position guess on target geo-location accuracy

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    Influence of flight path on target geo-location accuracy. (a) Flight paths; (b) target geo-location error under different flight paths

    Fig. 10. Influence of flight path on target geo-location accuracy. (a) Flight paths; (b) target geo-location error under different flight paths

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    Influence of error parameter on target geo-location accuracy. (a) Position error; (b) line of sight direction error

    Fig. 11. Influence of error parameter on target geo-location accuracy. (a) Position error; (b) line of sight direction error

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    Flight test. (a) Small-scale airborne electro-optical platform; (b) flight path

    Fig. 12. Flight test. (a) Small-scale airborne electro-optical platform; (b) flight path

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    Flight test. (a) Geo-location results; (b) geo-location errors

    Fig. 13. Flight test. (a) Geo-location results; (b) geo-location errors

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    • Table 1. Error parameters in simulation

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      Table 1. Error parameters in simulation

      SymbolStandard deviation
      φA /(°)0.0001(10 m)
      Aircraft geographical positionλA /(°)0.00014(10 m)
      hA /m10
      ψ /(°)0.08
      Aircraft attitudeθ /(°)0.03
      κ /(°)0.03
      Shock absorberδroll /(°)0.50
      δpitch /(°)0.50
      Gimbal angleα /(°)0.01
      β /(°)0.01
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    Shaoshuo Mu, Chuan Qiao. Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform[J]. Acta Optica Sinica, 2019, 39(5): 0528001

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Nov. 19, 2018

    Accepted: Jan. 23, 2019

    Published Online: May. 10, 2019

    The Author Email:

    DOI:10.3788/AOS201939.0528001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology