哈特曼波前传感器是自适应光学(AO)系统中常用的波前传感器件,噪声、器件装配误差常常影响其探测波前的能力和精度,进而影响整个系统对波前的实时校正。通过实验证明,引入数字图像处理中的矩技术,无需在硬件上对自适应光学系统进行修改,利用Zernike矩噪声不敏感、旋转不变等特性,对波前传感器CCD数据进行预处理,能够降低系统对噪声的敏感性,减小对器件装配精度的要求。 Hartmann wavefront sensors are commonly used wavefront sensors in adaptive optics (AO) systems. Noise and device assembly errors often affect their ability to detect wavefronts and their accuracy, which in turn affects the entire system’s real-time correction of the wavefront. The experimental results show that the introduction of moment technology in digital image processing can eliminate the need to modify the adaptive optics system in hardware. Pretreatment of the wavefront sensor CCD data using Zernike moment noise insensitivity and rotation invariance can reduce System sensitivity to noise, reducing the assembly accuracy of the device requirements.