【摘要】 通过FY-2E卫星可见光通道、红外1、红外2、红外3、红外4通道的杂散光评价,并且和FY-2D卫星发射初期的各通道杂散光评价对比,得到了FY-2E卫星可见光通道杂散光能量和FY-2D卫星可见光通道杂散光能量基本持平、其中A机通道性能略有提高,红外1、红外2、红外3、红外4各通道的杂散光绝对能量相比FY-2D卫星各红外通道杂散光绝对能量下降约30%～40%、其中红外2通道信杂比明显提高的结论;分析发现,是FY-2E卫星光路系统中的里奥光栏在降低杂散光方面发挥了巨大的作用。更多还原

【Abstract】 After estimate for stray light of FY-2E satellite,and comparison to stray light of FY-2D satellite,there is the conclusion that visible stray light of FY-2E is similar to that of FY-2E satellite,and A detector is better,in infrared channels,the stray light is less 30%-40% than that of FY-2D,especially,in infrared channel 2,SNR is higher than that of FY-2D.By the analysis,lyot stop is the useful way to reduce stray light.更多还原