舵令 meaning in English

helm orders
orders to the helmsman
rudder order

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) 。
Firstly , while the nominal model is used , the filtering effect is very good . secondly , when the system model is n ' t definite , the filtered heading angle and rudder angle are steady in the error range . finally , when the complicated nonlinear wave model replaces the linear wave model , the filtering effect is also steady , and the estimate precision is high
首先，仿真是在名义模型的情况下进行的，此时h _滤波器的滤波效果很好；其次，我们在系统模型具有摄动的情况下进行仿真，此时经h _滤波器滤波后的航向输出和舵令输出基本能够达到稳定；最后，我们采用较复杂的非线性海浪模型代替线性海浪模型进行仿真， h _滤波器的滤波效果也是比较稳定的，并且估计精度较高。