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本文主要讨论了变像管同步扫描对皮秒弱光现象诊断理论依据,从噪声理论出发,导出了这种相机的探测方程和最小可探测光功率密度的表达式,同时用概率论和数理统计的方法研究了这种相机的极限时间分辨率,并用蒙特卡洛模拟方法计算了其时间传递函数。分析表明,该类相机的最小可探测光功率密度约为10~(12)W/mm,时间分辨率较单次扫描机更高。
In this paper, we mainly discuss the theory of the diagnosis of picosecond weak light phenomenon by synchroscope scanning. Based on the noise theory, we derive the expression of this camera’s detection equation and the minimum detectable optical power density, and use the theory of probability and mathematical statistics The limit time resolution of this camera was studied and its time transfer function was calculated using the Monte Carlo simulation method. The analysis shows that the minimum detectable optical power density of this kind of camera is about 10 ~ (12) W / mm, the time resolution is higher than that of a single scanner.