相位编码条纹调制联合变换相关器的优化技术  

Improved technique of phase-encoded fringe-adjusted joint transform correlator

作　　者：吴丹[1] 路远[1] 凌永顺[1] 李玉波[1] 马超杰[1] 

机构地区：[1]电子工程学院安徽省红外与低温等离子体重点实验室,安徽合肥230037

出　　处：《激光与红外》2009年第9期999-1003,共5页Laser & Infrared

基　　金：安徽省红外与低温等离子体重点实验室基金项目(No.2007A010010X)资助

摘　　要：提出一种基于SONG相关的参考图像相位编码条纹调制联合变换相关器。该相关器引入SONG相关技术,吸收其突出的区分能力和抗噪性能,相对于传统的参考图像相位编码条纹调制联合变换相关器和其他改进技术,该相关器兼顾多项性能,具有更加突出的抑制干扰信号能力、抗噪声性能和多目标区分能力。仿真实验结果表明:当输入图像受到非覆盖性背景噪声影响时,识别度表现平稳,能够维持在99%以上;当输入图像受到替换噪声影响时,识别度能够达到96%以上。A novel phase-encoded fringe-adjusted joint transform correlator based on SONG correlation is proposed. The technique of SONG correlation with excellent discrimination and performance of resisting noise is introduced to the new correlator. Compared with traditional phase-encoded fringe-adjusted joint transform correlator and other improved technique, the new correlator not only enhances the performance of resisting disturbance signal and noise, but also has a good performance of multiple target discrimination. The results of simulation indicate that the discrimination capacity of more than 99% and 96% respectively can be obtained when the input image is destroyed by nonoverlapping back- ground noise and substitutive noise under the proposed technique.

关 键 词：联合变换相关器 条纹调制滤波器 相位模板 相位编码 SONG相关 识别度 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]