卫星对地成像覆盖分析

Satellite Imaging Coverage Analysis

星载线阵CCD和SAR成像是卫星对地成像的主要方式。分析了星载线阵CCD和SAR的成像几何特性,给出了在给定卫星轨道高度以及线阵CCD、SAR成像系统的主要参数条件下,确定其对地成像范围的方法。以SPOT2和RADARSAT1为例,给出了用STK卫星仿真工具软件对卫星对地成像进行仿真的实例,进而提出在实际应用中卫星对地成像覆盖分析的方法。

Space-borne line array CCD imaging and space-borne SAR imaging are the main modes of satellite imaging. This paper analyzes the geometry characteristics of space-borrte line array CCD and space-borne SAR imaging, gives the method for calculating the area of satellite imaging with given satellite orbit altitude and main parameters of line array CCD and SAR imaging systems. And taking SPOT2 and RADARSAT1 as example, the paper makes simulation on the coverage of satellite imaging with the STK satellite simulation tool software. Then, it proposes the method of satellite imaging in practical application.