Research on Parallelism Detection Method of Optical Axes for Airborne Photoelectric Platform of the UAV

Analysis of Assembly Error Effect on Stability Accuracy of Unmanned Aerial Vehicle Photoelectric Detection System

“…Then α a (t) can be expressed as Equation (12), and α am is considered to be the amplitude of this signal. Similarly, other tilting oscillations are also shown in Equation (18).…”

“…UAV photoelectric detection commonly adopts this two-axis stabilization mechanism because of advantages of simplicity and low weight [18]. Based on the above background, an index of stability accuracy θ is proposed for evaluation of the angular deviations.…”

“…Based on analysis above, the signals of the gyroscopes affected by → γ a and → γ p are simulated in Simulink as shown in Figure 12. Taking the azimuth, for example, based on Equation (18) and Equation 20, → ω ib and the motor rotation angle θ a are set as the inputs; the maximum tilting oscillations including α am and β am , and the transformation matrix R a are imbedded in the middle; the output is R a → ω ib , which will be used in other modules. The value of α am and β am can be set as needed in the future simulation experiments.…”