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With six-rotor aircraft attitude control as the research object, it's model is formulated, and the attitude control algorithm based on cascade PID controller is proposed. The effectiveness of the algorithm is verified by simulation with MATLAB. On this basis, by using the Mahony complementary filtering algorithm for posture estimation, the physical verification of cascade PID controller is carried...
Software Effort is defined as the person months required to make a software application. Software effort estimation is usually the most important phase in the software development life cycle. Software effort estimation requires high accuracy at early phases, but accurate estimations are difficult to achieve. Machine Learning techniques are widely exploited that assist in getting improved evaluated...
Real-time pose estimation and reliable motion control are two crucial tasks for a quadrotor UAV. In order to obtain accurate and robust pose estimation, an estimation algorithm based on Cubature Kalman Filter (CKF) is adopted in this paper. Considering the limitation of a quadrotor working in GPS-denied indoor environments, a sparse optical flow algorithm is utilized in our work to estimate the quadrotor's...
H.264 is the latest international video coding standard. It is a joint work by the ITUT Video Coding Experts Group and the ISO/IEC Moving Picture Experts Group. H.264 contains a number of new features which make it compress video sequences much more effectively than previous standards and can provide more flexibility for application to a wide variety of network environments. But the H.264 standard...
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