Electronics Optics & Control, Volume. 20, Issue 6, 96(2013)
Design and Realization of a Three-Axis Stabilized Orthographic Platform for Aerial Survey
A three-axis stabilized orthographic barrel was designed for aerial survey.This barrel carried an high-definition (HD) digital camera and a micro-TVand realized orthographic observation and photograph with inertial stability by using angular speed closed-loop control mode and inertial pointing position closed-loop control mode.Different from traditional gyro installation in bearing ringthis barrel used independent MEMS GPS integrated navigation system to realize disturbance isolation and orthographic direction.The desired angle position and angle speed compensation equation when the integrated navigation system was installed on the barrel shell were derivedand the design principlemethod and model of control modules were presented.The testing results showed that the stabled line of sight is perpendicular to the groundthe orthographic error can be controlled within 3°which can guarantee the longitudinal and transverse overlapping ratereduce the appearing of aerial photograph hole.
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YUAN Hongwei, MIN Zhifang, ZHANG Jianmin. Design and Realization of a Three-Axis Stabilized Orthographic Platform for Aerial Survey[J]. Electronics Optics & Control, 2013, 20(6): 96
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Received: Mar. 27, 2013
Accepted: --
Published Online: Jun. 17, 2013
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