yaw steering meaning in English

方向操纵

The conventional sphere model of earth and circle model of orbit are discarded , and the ellipsoid model and the ellipse model are selected for further research , which achieves a method to determine the target position through the antenna pointing direction . and the spaceborne sar system design and simulation software is brought forth . this software accomplishes sar system coefficients design for antenna area , pulse repetition frequency , signal bandwidth , downlink data rate , radar transmitter power and satellite platform yaw steering
本文从星载雷达的星地几何关系入手，舍弃传统星载合成孔径雷达研究中的球地球模型和圆轨道模型，研究了在地球椭球模型和椭圆轨道模型下由雷达天线确定目标坐标的方法，并在此基础上研制了星载合成孔径雷达系统设计与模拟软件，完成雷达系统天线尺寸、脉冲重复频率、信号带宽、雷达信号数据率、雷达发射功率、卫星平台的偏航牵引等几个方面的系统参数设计以及雷达多普勒特性、雷达系统模糊、雷达定位及精度的分析，最后完成雷达回波信号的模拟。