摘要
高分辨率空间光学遥感器在轨工作时,由于受到各种因素的影响,无法清晰成像,目前多采用自适应光学方法与技术进行校正。传统自适应光学系统体积较大,结构复杂,难以应用于高分辨率空间光学系统的在轨校正。无波前传感器自适应光学系统去除了传统自适应光学中的波前传感器,大大简化了系统结构,具有体积小、易于实现等优势,特别适用于高分辨率空间光学遥感器的在轨校正。提出了一种利用无波前传感器自适应光学解决高分辨率空间光学遥感器大口径面形误差校正以及宽视场校正等问题的方法。通过对典型的三反射式空间光学遥感器进行仿真研究,验证了利用无波前传感器方法校正大口径主镜面形误差的有效性。搭建了宽视场校正原理性实验平台,通过实验验证了宽视场无波前传感器校正方法的有效性。
Due to the influence of various factors,high-resolution space optical remote sensing system cannot get clear image in orbit.For the calibration of wavefront errors,normally methods and techniques of adaptive optics have been used.Conventional adaptive optics systems are large and complex,but they are not ideal for correction for high-resolution space optical system in orbit.Wavefront sensorless adaptive optics system do not need wavefront sensor,greatly simplifying the system structure,thus are smaller and easier to be implemented,especially suitable for correction for high-resolution space optical remote sensing systems in orbit.The use of wavefront sensorless adaptive optics system is proposed to resolve the key problems such as surface errors correction of primary mirror using MEMS deformable mirror with a large correction channel and the wide-field correction and so on.Through computer simulation studies for a typical three-mirror reflective optical remote sensing system,the validity of wavefront sensorless solutions to the correction for surface errors of primary mirror with large aperture is verified.Besides,a wide-field correction experiment platform has been built,and the validity of wavefront sensorless wide-field correction method has been verified by experiment.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2011年第9期158-165,共8页
Acta Optica Sinica
基金
国家973计划(2009CB724006)资助课题
关键词
光学器件
高分辨率空间光学遥感器
自适应光学
无波前传感器
宽视场校正
optical devices
high-resolution space remote sensing system
adaptive optics
wavefront sensorless
wide-field correction
