• Infrared and Laser Engineering
  • Vol. 50, Issue 3, 20200442 (2021)
Yuchao Fang1, Jing Xu1, Yongsheng Zhang1, and Mengxue Li2
Author Affiliations
  • 1Institute of Computer Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
  • 2College of Automobile Application, Changchun Automobile Industry Insititute, Changchun 130013, China
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    DOI: 10.3788/IRLA20200442 Cite this Article
    Yuchao Fang, Jing Xu, Yongsheng Zhang, Mengxue Li. Airborne target indication stability control based on improved extended state observation[J]. Infrared and Laser Engineering, 2021, 50(3): 20200442 Copy Citation Text show less
    (a) Experimental equipment with two axes and four frameworks; (b) Mechanical drawing of the outer frameworks; (c) Mechanical drawing of the inner frameworks
    Fig. 1. (a) Experimental equipment with two axes and four frameworks; (b) Mechanical drawing of the outer frameworks; (c) Mechanical drawing of the inner frameworks
    Design scheme of the servo system
    Fig. 2. Design scheme of the servo system
    Step response output curve of the system at different bandwidth frequencies
    Fig. 3. Step response output curve of the system at different bandwidth frequencies
    LOS velocity output curve of different frequencies of disturbance
    Fig. 4. LOS velocity output curve of different frequencies of disturbance
    System bandwidth frequency/HzStability time of PID algorithm/msStability time of ESO algorithm/ms
    25226142
    3013782
    3511257
    4011879
    Table 1. Stability time of the system at different bandwidth frequencies
    System bandwidth frequency/HzOvershoot of PID algorithm/(°)·s-1Overshoot of ESO algorithm/(°)·s-1
    250.1450.057
    300.4470.149
    350.5940.069
    400.7390.146
    Table 2. Overshoot of the system at different bandwidth frequencies
    Disturbance frequency/HzDisturbance residuals of PID algorithm/(°)·s-1Disturbance residuals of ESO algorithm/(°)·s-1
    1.00.1170.069
    1.50.1960.068
    2.00.2040.080
    2.50.2100.087
    Table 3. Disturbance residuals of the system under different frequencies of disturbance
    Yuchao Fang, Jing Xu, Yongsheng Zhang, Mengxue Li. Airborne target indication stability control based on improved extended state observation[J]. Infrared and Laser Engineering, 2021, 50(3): 20200442
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