摘要
为保证大口径空间相机的在轨成像质量,需要采用像差主动调整技术。针对采用出瞳变形镜校正技术的大口径空间相机,分析其在轨误差源,通过Zernike多项式拟合在轨波前像差,根据给定的在轨工况条件,采用直接斜率法进行了波前像差重建,建立了复原波前与出瞳变形镜的响应特性的对应关系,计算出控制电压值并用于波前校正。仿真结果表明,采用出瞳变形镜技术可以有效校正大口径空间相机的在轨波前像差,校正后面形残差RMS值小于1/50波长,为大口径空间相机在轨波前像差主动调整技术提供了工程应用参考。
In order to ensure the imaging quality of large aperture space camera,it is necessary to use the aberration active adjustment technology.In this paper,a large aperture space camera with a pupil deformable mirror correction technique is used to analyze its orbit error source,to fit in the orbit wavefront aberration through the Zernike polynomial,and to reconstruct the wavefront aberration with the direct slope method according to the given operating conditions.The value of the control voltage is calculated and used for the wavefront correction.The simulation results show that the use of the pupil deformable mirror technique can effectively correct the in-situ wavefront aberration of the large aperture space camera,and the correction of the RMS value of the rear residual is less than the 1/50 wavelength,which provides the engineering application for the active adjustment technology of the large aperture camera in the orbit wavefront aberration.
作者
粘伟
李博
刘兆军
苏云
NIAN Wei;LI Bo;LIU Zhao-jun;SU Yun(Beijing Institute of Space Mechanics &Electricity,Beijing100094,China;Beijing Key Laboratory of Advanced OpticaI Remote Sensing Technology,Beijing 100094,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《光学与光电技术》
2018年第6期50-55,共6页
Optics & Optoelectronic Technology
基金
国家重大科技专项工程资助项目
关键词
大口径空间相机
波前像差
拟合与校正
波前斜率
控制电压
变形镜
large aperture space camera
wavefront aberration
fitting and correction
wavefront slope
control voltage
deformable mirror
