摘要
在微光像增强器成像中 ,迭加在图像上的时空域噪声 ,不仅限制系统的可工作最低照度 ,而且使显示图像有随机蠕动颗粒闪烁的外观。随着低噪声、高增益的光电倍增管的出现 ,比较精确地测量微弱光信号成为可能。在此基础上提出了采用光电倍增管来测试像增强器信噪比的方法。实验中发现 。
In the imaging of the low light level image intensifiers,the time and space domain noise in the image signal not only limits the lowest illuminance of the system but also causes the image display with random particle glitter. Precise testing method of faint optical signal comes into being while multiplier phototube appears with low noise and high gain. It is testified that the noise of image intensifier can be tested accurately and intuitively by this method.
出处
《应用光学》
CAS
CSCD
2002年第3期26-27,25,共3页
Journal of Applied Optics
