Astronomical CCD (Charge-Coupled Device) image is affected by kinds of noises, it is necessary to research how to reduce noises effectively and to realize the detection for fixed stars and moving space targets.

• ccd(Charge-Coupled Device)天文图像受到各种噪声的影响,因此研究如何有效地抑制噪声并在此基础上对恒星目标和运动空间目标进行可靠检测是有必要的。