| 光学波束形成技术对超宽带信号的传输特性分析 |
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| 引用本文： | 周涛,范保华,陈吉欣.光学波束形成技术对超宽带信号的传输特性分析[J].半导体光电,2010,31(3). |
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| 作者姓名： | 周涛 范保华 陈吉欣 |
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| 作者单位： | 电子信息控制国防科技重点实验室,成都,610036;电子信息控制国防科技重点实验室,成都,610036;电子信息控制国防科技重点实验室,成都,610036 |
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| 摘 要： | 光学波束形成是一种在光学域内对来自阵列天线的射频信号进行加权和滤波而获得处理增益的新方法,具有大瞬时带宽、指向与频率无关等优点.对光学波束形成的原理进行了扼要阐述,并针对超宽带信号经过波束形成网络后的信息失真问题,对比分析了光学波束形成与Buttler矩阵等移相网络的传输特性,结果证实光学多波束能够在获得高处理增益的同时更好地保持信号原有的时频域特征.
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| 关 键 词： | 波束形成 光学 超宽带 |
Analysis of Transmission Characteristics of UWB Signal Using Optical Beam Forming |
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| ZHOU Tao,FAN Baohua,CHEN Jixin.Analysis of Transmission Characteristics of UWB Signal Using Optical Beam Forming[J].Semiconductor Optoelectronics,2010,31(3). |
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| Authors: | ZHOU Tao FAN Baohua CHEN Jixin |
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| Affiliation: | ZHOU Tao,FAN Baohua,CHEN Jixin(National Key Laboratory of Electronic Information Control,Chengdu 610036,CHN) |
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| Abstract: | Optical beam forming is a new method for obtaining process gain in optical domain by weighting and spatial-filtering the RF signals from antenna array. It has some merits such as large bandwidth and uniform beam-direction independence on signal frequency. In this paper,the principles of optical beam forming are analyzed and its characteristics compared with phase-shift beam forming such as Buttler-matrix are discussed in the case of distorted problem of ultra-wide-band signals transferring beam-forming netw... |
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| Keywords: | beam-forming optical ultra-wide-band(UWB) |
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