Abstract
A problem of quadrotor’s control system based on DSP is investigated in this paper. STMS320F28335 is used as the main processer, due to its advantages of high-speed processing capability and powerful floating point processing capability. The inertial measurement unit is selected for inner-loop attitude control, while the optical flow sensor is adopted for outer-loop attitude compensation. Infrared range finder is choosed for altitude control with PID method. Quadrotor uses XBee-Pro wireless module to contact with ground station and sends statement information in accordance with the Mavlink protocol. Test results show that the control system is reliable and can meet the requirement of the attitude control system.
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