The rudder roll damping system is just the system whose controlled object is not square matrix . the input is rudder - order and the outputs are the roll angle and the heading angle . the input controls the two outputs 舵阻摇系统正是被控对象为非方阵的系统,它通过输入_ r (舵令)来控制输出(横摇角)和(首向角) 。