针对当前星载合成孔径雷达(SAR,Synthetic Aperture Radar)朝高分辨率、多模式方向快速发展的趋势,兼顾星载SAR系统多种工作模式的特点,总结星载SAR系统的星地一体化指标体系;在此基础上提出了高分辨率、多模式星载SAR系统星地一体化设计方法,给出了系统星地一体化设计流程,对雷达天线参数设计、雷达系统参数设计、雷达发射功率选择进行重点分析;以国外高分辨率、多模式星载SAR系统为例,以其总体技术指标及轨道参数为依据,设计了系统的中央电子设备参数、天线参数及波位参数,并分析了系统的性能,从而对所提出的设计方法进行了验证.该方法克服了现有方法的局限性,为高分辨率、多模式星载SAR系统研制提供了技术支撑. Aiming at the rapid development of SAR (Synthetic Aperture Radar) towards high resolution and multimode direction, taking into account the characteristics of various working modes of spaceborne SAR system, this paper summarizes the integrated indicator of spaceborne SAR system System. Based on this, the integrated design method of star ground in high-resolution and multi-mode spaceborne SAR system is proposed. The integrated design process of star-earth system is given. The radar antenna parameter design, radar system parameter design, radar transmitting power Choose high-resolution and multi-mode spaceborne SAR system as an example, and design the central electronic equipment parameters, antenna parameters and wave position parameters based on the overall technical indicators and orbital parameters, and analyze The performance of the proposed system is validated by this method, which overcomes the limitation of the existing methods and provides technical support for the development of high resolution and multi-mode spaceborne SAR system.