| 光纤调幅有线电视外调制传输预失真补偿的理论分析及其实现 |
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| 引用本文： | 蒋洪涛,查开德.光纤调幅有线电视外调制传输预失真补偿的理论分析及其实现[J].光子学报,1997,26(12):1075-1081. |
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| 作者姓名： | 蒋洪涛 查开德 |
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| 作者单位： | 中国矿业大学信息与电子工程学院!徐州，221008，清华大学电子工程系!北京，100084 |
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| 摘 要： | 在光纤调幅有线电视外调制传输中,由于所用调制器变换特性是非线性的,需要加以补偿,本文对预失真补偿进行了分析.介绍了基于热载流子二极管的具体预失真电路,该电路在50～200MHz范围可将三次谐波至少抑制到18dB.
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| 关 键 词： | 有线电视 外调制 预失真 |
| 收稿时间： | 1997-04-25 |
THEORETICAL ANALYSIS AND REALIZATION OF PREDISTORTION LINEARIZATION IN OPTICAL FIBER AM CATV EXTERNALLY MODULATED TRANSMISSION |
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| Jiang Hongtao.THEORETICAL ANALYSIS AND REALIZATION OF PREDISTORTION LINEARIZATION IN OPTICAL FIBER AM CATV EXTERNALLY MODULATED TRANSMISSION[J].Acta Photonica Sinica,1997,26(12):1075-1081. |
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| Authors: | Jiang Hongtao |
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| Institution: | 1. China University of Mining & Technology, Xuzhou, 221008;2. Tsinghua University, Beijing 100084 |
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| Abstract: | In optical fiber AM CATV external modulating transmission,compensation is needed owingto an used modulator's nonlinear transfer characteristics. In the paper,the predistortion linearization is analysed. A concrete predistortion circuit based on hot carrier diode is presented. The circuit can suppress third harmonics at least 18dB from 50~200MHz. |
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| Keywords: | CATV External modulating Predistortion |
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