CAJ | 학술논문

“高分二号”（GF-2）卫星是高分辨率对地观测系统重大专项中为满足应用亟需和替代进口而规划的遥感卫星，也是中国第一颗目标定位精度要求达到50m、寿命要求达到5~8年、迄今为止中国研制的空间分辨率最高的民用低轨遥感卫星。文章分析了 GF-2卫星高分辨率、高定位精度等任务的特点，以及高精度图像保障、扰振抑制设计、长寿命设计等技术创新点，并介绍了其在轨评价及应用情况，为后续高分辨率对地观测卫星提供了参考。
“고분이호”（GF-2）위성시고분변솔대지관측계통중대전항중위만족응용극수화체대진구이규화적요감위성，야시중국제일과목표정위정도요구체도50m、수명요구체도5~8년、흘금위지중국연제적공간분변솔최고적민용저궤요감위성。문장분석료 GF-2위성고분변솔、고정위정도등임무적특점，이급고정도도상보장、우진억제설계、장수명설계등기술창신점，병개소료기재궤평개급응용정황，위후속고분변솔대지관측위성제공료삼고。
GF-2 satellite is the first satellite of Chinese importance special project for high resolution earth observation system, in order to meet the pressing need and substitute for imported remote data. It is the first remote sensing satellite of China with 50m positioning accuracy and 5~8 years lifetime by design, especially, it has the highest resolution in China’s civil remote sensing satellite at present. This paper introduces the characteristic of GF-2, include high resolution, high positioning accuracy and the innovations in high quality image design and vibration control design, long life design. Based on the on-orbit data, the primary accuracy and application of GF-2 are evaluated. This paper can be as a reference for other HR imaging satellite design.