俯仰伺服系统 meaning in English

elevation servo

Secondly control system modeling has been analysed and controlling parameter has been designed . azimuth , elevation servo and horizon ' s mathematical model has been differentiated and emulated , pid control parameter has been amended
分别辩识出了方位、俯仰伺服系统和石英音叉陀螺( horizon )各自的数学模型,并对陀螺闭环控制系统进行了仿真,最后整定了该系统pid控制参数。