光学技术, 2013, 39 (5): 398, 网络出版: 2013-09-25
1∶N识别光电混合匹配滤波相关器研究
Research on optic-electronic hybrid matched filtering correlator in 1∶N identification
摘要
利用空间匹配滤波的原理, 提出了一种用于1∶N识别的光电混合匹配滤波相关器。利用计算机提前制作二值匹配滤波器, 用计算机和FPGA直接计算识别所需要的功率谱, 然后利用2f系统完成傅里叶变换, 从而完成1∶N识别。从理论上对图像识别原理进行了分析, 并用计算机仿真的方法加以验证, 仿真结果表明, 相关器输出锐的相关峰, 具有很好的识别能力。
Abstract
An opto-electronic hybrid matched filtering correlator in 1∶N identification is proposed by means of the idea of matched filtering in space. In order to perform 1: N recognition, using a computer to generate binary matched filter in advance, directly calculating needed power spectrum with computer and FPGA, a 2f system is used to complete Fourier transform. By theory analysis and verification with the method of computer simulation, the simulation results show that the correlator exports sharp related peak and has the very good recognition ability.
郭广明, 程红山. 1∶N识别光电混合匹配滤波相关器研究[J]. 光学技术, 2013, 39(5): 398. GUO Guangming, CHENG Hongshan. Research on optic-electronic hybrid matched filtering correlator in 1∶N identification[J]. Optical Technique, 2013, 39(5): 398.