| 应用相移技术和迭代算法的综合鉴别联合变换相关器 |
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| 引用本文： | 刘宏利,王肇圻,郭占城,贺顺忠,刘文耀.应用相移技术和迭代算法的综合鉴别联合变换相关器[J].光子学报,2005,34(8):1153-1155. |
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| 作者姓名： | 刘宏利 王肇圻 郭占城 贺顺忠 刘文耀 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院,天津,300072;南开大学现代光学研究所,天津,300071 |
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| 摘 要： | 把相移技术和迭代算法应用到综合鉴别联合变换相关中，计算机模拟结果表明,运用了相移技术和迭代算法后这种相关器的光能效率和鉴别率得到了很大提高，实现了高鉴别率和高光能效率的综合鉴别光学模式识别.进一步研究了输入噪声对相关器性能的影响，相关的抗噪声能力有待提高.
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| 关 键 词： | 相移技术 联合变换相关 综合鉴别函数 迭代算法 Gram-schmidt展开 |
| 收稿时间： | 2004-06-14 |
| 修稿时间： | 2004年6月14日 |
Phase-shifting Technique and Iterative Technique Applied to SDF Joint Transform Correlator |
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| LIU Hongli,Wang Zhaoqi,GUO Zhancheng,He Shunzhong,Liu Wenyao.Phase-shifting Technique and Iterative Technique Applied to SDF Joint Transform Correlator[J].Acta Photonica Sinica,2005,34(8):1153-1155. |
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| Authors: | LIU Hongli Wang Zhaoqi GUO Zhancheng He Shunzhong Liu Wenyao |
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| Institution: | (1 College of Precision Instruments and Opto-electronic Engineering, Tianjin University, Tianjin 300072 )
(2 Institute of Modern Optics,Nankai University,Tianjin 300071) |
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| Abstract: | A phase-shifting joint transform correlator with synthetic discriminant function is obtained by use of the Gram-Schmidt expansion approach and iterative technique to recognize a class of objects. Compared with the SDF-based classical joint transform correlator, the phase-shifting joint transform correlator delivers a better capability to give localized equal correlation peak heights for the same class of objects. The performance merits based on light efficiency and signal-to-clutter ratio are evaluated. |
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| Keywords: | Phase-shifting Joint transform correlator Synthetic discriminant function Iterative technique |
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