| 基于联合广义分数相关器的相关峰特性分析 |
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| 引用本文： | 金伟民,颜才杰. 基于联合广义分数相关器的相关峰特性分析[J]. 光子学报, 2008, 37(9): 1901-1906 |
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| 作者姓名： | 金伟民 颜才杰 |
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| 作者单位： | 浙江师范大学,信息光学研究所,浙江,金华,321004;浙江丽水学院,浙江,丽水,323000 |
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| 摘 要： | 分析了联合广义分数傅里叶变换相关器相关峰的特性,得到通过改变广义分数傅里叶变换的系统参量可以提高广义分数相关峰性能的结论.进行了数值模拟和光学实验,并根据两者的结果对四个相关峰的性能指标相关峰强度最大值、峰能比、识别能力、信噪比进行了比较分析,说明只要适当控制系统参量,联合广义分数傅里叶变换相关器比联合分数傅里叶变换相关器具有更好的相关性能,有助于提高光学相关器识别的准确率.
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| 关 键 词： | 联合傅里叶变换相关器 分数傅里叶变换 广义分数傅里叶变换 联合广义分数相关器 |
| 收稿时间： | 2007-02-28 |
| 修稿时间： | 2007-04-24 |
Performance Analysis of the Joint Extended Fractional Fourier Transform Correlator |
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| JIN Wei-min,YAN Cai-jie. Performance Analysis of the Joint Extended Fractional Fourier Transform Correlator[J]. Acta Photonica Sinica, 2008, 37(9): 1901-1906 |
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| Authors: | JIN Wei-min YAN Cai-jie |
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| Abstract: | The performance of the extended fractional correlation peak(EFCP) was analyzed.Numerical simulations and optical experiments with different EFRT parameters were performed.Using four performance criteria,correlation output peak intensity,peak-to-correlation energy ratio,discriminability ratio,and signal-to-noise ratio were analyzed.The results demonstrate that the JEFRTC′s performance can be better than the JFRTC′s by adjusting some EFRT parameters. |
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| Keywords: | Joint Fourier transform correlator Fractional Fourier transform Extended fractional fourier transform Joint extended fractional Fourier transform correlator |
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