The satellite positioning navigation system is very important to the survival and development of a country. Now, we have developed Two-satellite Positioning System based on the earth quiescency track. 卫星定位导航系统对一个国家的生存和发展有着至关重要的作用,我国目前已经研制成功了基于地球静止轨道的双星卫星定位系统。
The mathematical model of asynchronous motor under the condition of 2 phase quiescency and 2 phase rotating frame is gained, and then the mathematical mode of super dense-phase conveying load is founded. 本文通过矩阵变换得到了异步电机在二相静止和二相旋转坐标系下的数学模型,从而建立了超浓相输送负荷的数学模型。