用CMOS探测脉冲激光中的虚警抑制技术研究  

Research on the Technology of False Alarm Rejection in Pulse Laser Detection by CMOS

作　　者：周中亮[1] 周冰[1] 何永强[1] 赵诚[1] 

机构地区：[1]军械工程学院光学与电子工程系,河北石家庄050003

出　　处：《激光与红外》2008年第2期169-172,共4页Laser & Infrared

摘　　要：如何在保证激光探测距离的基础上保持低的探测虚警,一直是激光探测系统的核心问题。以CMOS成像型激光探测系统为技术背景,分析了引起虚警的主要因素是场景噪声和强光干扰等,对此提出从三个方面来抑制系统虚警:光谱滤波技术;提高图像采集帧频,减少积分时间;帧相减技术。实验表明,在采用相同的探测阈值时,它们使虚警概率得到大大的降低,达到了较好的虚警抑制效果。It is the core problem in laser detection system keeping low false alarm probability while ensure the detection distance. Based on CMOS imaging laser detection system, the main factors arousing false alarm were analyzed, which is scene noises and strong light disturbances. For these, three approaches of false alarm rejection technology were presented, which were spectrum filtering, increasing image frame frequency to decrease integral time and frame subtraction technology. The test result showed that the false alarm probability was greatly decreased with the same detection threshold, which obtained preferable false alarm rejection effect.

关 键 词：激光探测 虚警抑制 CMOS探测 频谱滤波 帧相减 

分 类 号：TN247[电子电信—物理电子学]