摘要
在对帧间差分算法进行分析的基础上,建立了基于帧间差分算法的目标探测识别系统,提出了针对该算法的脉冲光干扰方法。在红外干扰光源条件下,针对帧间差分算法特点选择合适的干扰信号脉冲频率实现了对该算法的干扰。实验中,帧间差分算法选取的差频为5Hz,当干扰源的脉冲信号频率与帧间差分算法的差频相比拟(近似相等)时,相干光源和非相干光源实现了对帧间差分算法的干扰。
The moving target can be detected and recognized by inter-frame difference algorithm. Through the subtraction between frames of image acquired by the detector, the algorithm showed the difference between the frames of images and obtained the target information. The algorithm is sensitive to the frequency of the frames. The system hardware of target acquiring and recognition is established based on this algorithm. Under the conditions of infrared jamming light source, the jamming to the algorithm of inter-frame difference was made by choosing the right pulse frequency. During the experiments, the difference frequency of the algorithm is 5Hz. While the pulse frequency is similar to the frame difference, this light source jammed the algorithm successfully.
出处
《激光与红外》
CAS
CSCD
北大核心
2007年第3期268-270,共3页
Laser & Infrared
基金
中物院预研基金(421010103)资助课题
关键词
脉冲光
目标识别
帧间差分
干扰
pulse light
target recognition
inter-frame difference
jamming
