| 互换式幅度相消定位方案性能分析 |
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| 引用本文： | 吴龟灵,骆清铭,穆晨鹏,刘贤德. 互换式幅度相消定位方案性能分析[J]. 光学学报, 2003, 23(5): 34-540 |
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| 作者姓名： | 吴龟灵 骆清铭 穆晨鹏 刘贤德 |
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| 作者单位： | 上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海,200030;华中科技大学生物医学光子学教育部重点实验室,武汉,430074 |
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| 基金项目： | 国家自然科学基金 ( 6 97780 0 4,5 9836 2 40 ),国家杰出青年基金 ( 6 0 0 2 5 5 14)资助课题。 |
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| 摘 要： | 用解析模型详细、深入的分析了更接近实际的非理想情况下新的幅度相消定位方案(互换式幅度相消定位)的性能：分析了探测系统的分辨率和灵敏度有限及非完全交换时交换式幅度相消定位方案的定位性能;讨论了非完全交换时系统参量和异质子参量对其定位能力的影响。结果表明：新方法可减小相对幅度和相位及异质子参量对系统的影响,明显地提高定位精度,探测到尺度和吸收系数更小、深度更深的异质子。
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| 关 键 词： | 信息处理技术 相位调制光谱仪 幅度相消 光子密度波 空间定位 |
| 收稿时间： | 2002-03-18 |
The Performance of the Interchange Amplitude Cancellation Localization Scheme |
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| Wu Guiling. The Performance of the Interchange Amplitude Cancellation Localization Scheme[J]. Acta Optica Sinica, 2003, 23(5): 34-540 |
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| Authors: | Wu Guiling |
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| Abstract: | The localization performance of a new amplitude cancellation localization scheme (interchange amplitude cancellation localization scheme) under non ideal case according with actual condition is analyzed using analytical model, especialy the performance when the resolution and sensitivity of the detection system is limited, and the interchange between two sources is not complete. The effects of the parameters of the heterogenous object on the localization performance of the system using the new scheme are also discussed. The results show that the method can reduce the effects of the relative amplitude and phase between two sources on the system, obviously improve the localization precision, and detect the heterogeneity with smaller size, deeper and smaller absorption coefficient. |
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| Keywords: | information processing technique phase modulation spectroscope (PMS) amplitude cancellation photon density wave spatial localization |
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