Infrared and Laser Engineering, Volume. 50, Issue 3, 20200442(2021)
Airborne target indication stability control based on improved extended state observation
Figures & Tables(7)
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
Fig. 3. Step response output curve of the system at different bandwidth frequencies
Fig. 4. LOS velocity output curve of different frequencies of disturbance
Table 1. Stability time of the system at different bandwidth frequencies
View tableView in ArticleTable 1. Stability time of the system at different bandwidth frequencies
System bandwidth frequency/Hz Stability time of PID algorithm/ms Stability time of ESO algorithm/ms 25 226 142 30 137 82 35 112 57 40 118 79
Table 2. Overshoot of the system at different bandwidth frequencies
View tableView in ArticleTable 2. Overshoot of the system at different bandwidth frequencies
System bandwidth frequency/Hz Overshoot of PID algorithm/(°)·s-1 Overshoot of ESO algorithm/(°)·s-1 25 0.145 0.057 30 0.447 0.149 35 0.594 0.069 40 0.739 0.146
Table 3. Disturbance residuals of the system under different frequencies of disturbance
View tableView in ArticleTable 3. Disturbance residuals of the system under different frequencies of disturbance
Disturbance frequency/Hz Disturbance residuals of PID algorithm/(°)·s-1 Disturbance residuals of ESO algorithm/(°)·s-1 1.0 0.117 0.069 1.5 0.196 0.068 2.0 0.204 0.080 2.5 0.210 0.087
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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
Paper Information
Category: Photoelectric measurement
Received: Nov. 11, 2020
Accepted: --
Published Online: Jul. 15, 2021
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