two state variable造句

• In this dissertation , through computer simulation , the problems of modeling , control and guidance of auvs are presented . the first part of this dissertation addresses the problem of dynamically modeling of auvs , and derives thrusters " two - dimension nonlinear dynamic model , which has axial flow speed and propeller rotational velocity as two state variables , voltage or current of motor as inputs , and thruster force and torque as output . the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane
  本论文系统研究了自主式水下航行器的建模、非线性自适应滑模控制、以及深度调整和水平面导引方法等问题，具体成果和创新点如下1 、根据流体力学理论，建立了螺旋桨推进器的动态模型，它以螺旋桨来流速度v _ p和螺旋桨转速n为状态变量，以电机施加转矩为输入，螺旋桨推力t和转矩q为输出。
• The rotor velocity and position can be taken as two states variable of the system by using the ekf on the basis of the theory of the bldcm . based on the measured stator currents and stator voltages , we can estimate the rotor velocity and position . it is very useful for us to study the application of the velocity and position sensorless operation of brushless dc motor drives
  在直流无刷电机的原理基础上,利用扩展卡尔曼滤波器将转子转速和位置看成系统的两个状态变量,根据定子侧可测的电流、电压值,逐步估计出转子转速和位置,为无速度和位置传感器无刷直流电机控制系统打下基础。