| 啁啾脉冲在正常色散光纤中的传输 |
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| 引用本文： | 余建军,管克俭.啁啾脉冲在正常色散光纤中的传输[J].北京邮电大学学报,1997,20(3):59-63. |
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| 作者姓名： | 余建军 管克俭 |
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| 作者单位： | [1]北京邮电大学基础科学部 [2]北京邮电大学电主工程学院 |
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| 摘 要： | 对正常色散光纤中的光脉冲的时域特性、频域特性及啁啾的变化进行了数值分析和实验研究。结果表明。当入纤光功率较大时，光纤非线性效应不可忽略，啁啾脉冲在光纤中的时域特性、频域特性及脉冲的啁啾都发生大的变化。
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| 关 键 词： | 光纤通信 正常色散光纤 啁啾脉冲 非线性效应 |
The Study of Shaped Beams in the Satellite Multiple Beams Antennas with Minimax Methods |
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| Wang Huazhi,Xie Chongjin.The Study of Shaped Beams in the Satellite Multiple Beams Antennas with Minimax Methods[J].Journal of Beijing University of Posts and Telecommunications,1997,20(3):59-63. |
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| Authors: | Wang Huazhi Xie Chongjin |
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| Abstract: | The Minimax optimization method is used to investigate the shaped beams problem in the satellite multiple beams antennas.The normalized deviation of the calculated power from the desired power is presented as the goal function.The improved Minimax method is used to establish the mathematical model of the problem, and it is solved with linear approximation method.Finally an example is presented to test the validity of the method, and accomplish the optimization design for the shaped beams of China territory. |
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| Keywords: | multiple beams antennas satellite antennas shaped beams |
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