全向激光探测中抑制太阳光引发虚假信号的研究

摘要

In order to solve the problem that sunlight flashing can generate false signals in omni-directional laser detection easily,on the basis of adjacent frames subtracting,a method distinguishing false signals according to the image characteristics is presented.The effect of the false signal suppressing is verified in natural environment with blazing sunshine,and the results indicate that relative to the method of filtering technology and improving frame frequency,this method can solve the problem of suppressing false signals generated by sunlight flashing.For the imaging detector and the image acquisition card with low requirements,it has good application value.%针对全向激光探测过程中太阳光闪烁容易引发虚假信号的现象,在相邻帧相减的基础上,提出了依据图像特征判别虚假信号的方法。在野外阳光强烈的自然条件下,对此方法抑制虚假信号的效果进行了试验验证。结果表明,相对于依靠滤波技术和提高帧频的方法抑制干扰而言,所提出的虚假信号抑制方法,能够更好地抑制太阳光闪烁引起的虚假信号,是一种依靠图像处理本身即可完成既定目标的方法。由于其对成像探测器和图像采集卡要求较低,因而具有较好的应用推广价值。