抑制太阳光引起的探测虚警研究

为了解决成像型激光探测系统外场试验常易出现的太阳光虚警问题,提出了一种通过提高图像帧频抑制太阳光虚警的方法,讨论了该方法的适用性,给出了最佳频帧的选取办法,并在外场太阳直射条件下进行了实地验证.结果表明,该方法可减小探测系统对背景的积分时间,有助于缩小太阳周围虚警杂光的成像范围,有利于抑制虚警,为成像型激光探测系统后续...

Study for suppressing the false alarm triggered by sunlight

In order to solve the problem that false alarm triggered by sunlight often occurs in outdoor test of the imaging laser detecting system,a method to suppress the false alarm triggered by parasitic sunlight through raising picture-frequency is proposed.The applicability is discussed.The method to fix the optimum picture-frequency is also offered.The outdoor test is carried out under the condition of direct sunlight.The result indicates that the background integration time of detecting system can be reduced by the method,which is helpful for reducing the imaging area of parasitic sunlight around sun and favorable for suppressing the false alarm,and by which,the useful reference will be supplied for the subsequent research and test of imaging laser detecting system.