【摘要】 星载合成孔径雷达快视成像质量与卫星的运动姿态密不可分 ,卫星扰动主要体现在对多普勒参数的影响上 ,而快视成像一般利用卫星星历来估计多普勒参数。通过详细分析 ,找出了卫星扰动对多普勒参数的内在联系 ,给出了详细的数学公式并结合实际数据进行了计算机模拟 ,给出了平台的控制精度范围 ,为星载SAR系统设计提供理论依据。更多还原

【Abstract】 The quality of Spaceborne SAR imaging is connected with the motion attitude of the platform. The disturbance of satellite affects the Doppler parameters, and SAR image often uses satellite’s calendar to estimate the Doppler parameters. This paper finds out the inherent relationships between satellite disturbance and spaceborne SAR imaging through detailed analysis, gives out the mathematical expression and by computer simulation, presents the limitation of disturbance.更多还原