论文部分内容阅读
提出了一种新型星载方位多波束ScanSAR工作模式,实现了在保持方位向高分辨率的前提下对距离向测绘带大幅扩展。分析了该工作方式的特点及主要相位误差,给出了相应的误差补偿方法。介绍了该工作方式下回波数据的模拟方法,并讨论了几种适合该工作方式的成像算法。最后通过仿真对该工作方式的可行性及补偿方法的有效性进行了验证。
A new type of multi-beam scanning satellite positioning satellite working mode is proposed, which greatly expands the range mapping range while maintaining the high azimuth resolution. The characteristics of the working method and the main phase errors are analyzed, and the corresponding error compensation methods are given. The simulation method of echo data under this working mode is introduced, and several imaging algorithms suitable for the working mode are discussed. Finally, the feasibility of the working method and the effectiveness of the compensation method are verified through simulation.