• Infrared and Laser Engineering
  • Vol. 49, Issue 4, 0403004 (2020)
Hongguang Ren1, Haojun Zhang1、*, Yukai Sun2, and Yunwen Zhang3
Author Affiliations
  • 1China Airborne Missile Academy, Luoyang 471000, China
  • 232381st Troops of the Chinese PLA, Beijing 100072, China
  • 3Zhengzhou Normal University, Zhengzhou 450044, China
  • show less
    DOI: 10.3788/IRLA202049.0403004 Cite this Article
    Hongguang Ren, Haojun Zhang, Yukai Sun, Yunwen Zhang. Study on techniques of anti-aerosol-interference for active optical target-detection device[J]. Infrared and Laser Engineering, 2020, 49(4): 0403004 Copy Citation Text show less
    Block diagram of major components of AOTD
    Fig. 1. Block diagram of major components of AOTD
    Typical size of particles in atmosphere and aerosol(Unit: μm)
    Fig. 2. Typical size of particles in atmosphere and aerosol(Unit: μm)
    Diagram of the influence of the aerosol interference on AOTD
    Fig. 3. Diagram of the influence of the aerosol interference on AOTD
    Cross location of transmitting field and receiving field
    Fig. 4. Cross location of transmitting field and receiving field
    Cross location of transmitting field and receiving field for a single part
    Fig. 5. Cross location of transmitting field and receiving field for a single part
    Diagram of the distribution of laser energy in designation field vs reality field
    Fig. 6. Diagram of the distribution of laser energy in designation field vs reality field
    Diagram of cancellation method for two opposite fields of a whole circle
    Fig. 7. Diagram of cancellation method for two opposite fields of a whole circle
    Diagram of the application of reference view field
    Fig. 8. Diagram of the application of reference view field
    Continued shape of target vs discrete shape of aerosol
    Fig. 9. Continued shape of target vs discrete shape of aerosol
    Simulation point image of airplane
    Fig. 10. Simulation point image of airplane
    Types of interferenceInterference characteristicsInterference-weaken methodsEffects of anti-interferenceExplanation
    AerosolExtensibility of the scattering zoneSettings of cut-off distance, reference view field, cancellation by symmetric view, optical field restrainingEliminated partlyVerified not perfectly
    Penetrability and multi-layers scatteringSettings of multi-range gates and multi- thresholdsEliminated partlyVerified not perfectly
    Decrease the width of transmitted pulseEliminated partlyDevices in poor maturity
    Image characteristics of block or irregular shape of aerosolImage recognitionEliminated partlyDevices in poor maturity
    Aerosol in reality environmentComposite with Ka detectorsEliminated effectivelyVerified Perfectly
    Head on and trailing attackComposite with IR detectorsPassive closingLimited
    Table 1. List of methods and effects for anti-aerosol-interference
    Hongguang Ren, Haojun Zhang, Yukai Sun, Yunwen Zhang. Study on techniques of anti-aerosol-interference for active optical target-detection device[J]. Infrared and Laser Engineering, 2020, 49(4): 0403004
    Download Citation