摘要
提出一种将联合变换功率谱二值化处理并进行复制以提高联合变换相关器性能的方法，对该方法给出了理论分析并导出了谱复制时应满足的条件，证明了在该条件下不仅可以提高光效率，而且可以同时大大提高相关峰极值强度、相关峰锐度及信噪比。给出了计算机模拟及光学实验结果。该方法可由单一ＳＬＭ的ＪＴＣ系统实现，具有简便易行、效果突出的优点。
We propose a method using spectrum binarizing and replicating techniques to improve the performance of a JTC. it can greatly increase the light efficiency, the maximum intensity and sharpness of the correlation peak, and the signal-to-noise ratio. The requirement for spectrum replication is derived based on theoretical analysis. Both the computer simulation and optical experimental results verifying our theoretical expectations are given
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
1996年第6期327-332,共6页
Journal of Optoelectronics·Laser
基金
国家自然科学基金
关键词
联合变换相关
谱二值化
复制技术
光电子技术
Joint transform correlator (JTC),optical pattern recognition, spectrum binarizing and replicating.
