星载DPCMABSAR系统主要性能指标分析

星载分离相位中心方位多波束合成孔径雷达可以同时实现方位向高分辨率和宽测绘带成像。分辨率、测绘带宽度、模糊度和作用距离等性能指标是系统设计的目标，同时也是用户最为关心的指标。通过对这种新体制SAR技术原理进行分析，并参照常规SAR上述指标的定义，给出了DPCMABSAR系统的分辨率、测绘带宽度、模糊度和作用距离等性能指标的计算公式，可用于系统工程设计时参考。同时计算结果与常规SAR对照，进一步体现了DPCMAB技术的优势。

Analysis of Main Performance Indexes for Spaceborne DPC MAB SAR

The spaceborne displaced phase centre multiple azimuth beam(DPCMAB) synthetic aperture radar(SAR) can realize the high-resolution wide swath imaging.The performance indexes including resolution,swath width,ambiguity and effective ranging are the goal of system design and what the users concern mostly with.According to the definition of the above performance,the computational formula for the performance indexes is presented by analyzing the principle of the DPC MAB SAR in this paper,which is considered in en...