Decoupling control of a double-channel control rolling missile autopilot

In order to avoid cross couplings between the vertical and lateral motion, decoupling control of a double-channel control rolling missile autopilot was studied. Such couplings in autopilot loop are analyzed. Couplings of motion, control and the accelerometer placed a distance ahead of the c. g. exist in the rolling missile autopilot loop. Test results showed that the autopilot design needs decoupling. Trajectory simulation was conducted for a certain kind of missile controlled under optimization command. Simulation results proved that the scheme was feasible and had perfect application value.