| 一种减小数字阵雷达非线性相关的方法 |
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| 引用本文： | 刘波,韩春林,何子述. 一种减小数字阵雷达非线性相关的方法[J]. 电子科技大学学报(社会科学版), 2007, 0(5) |
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| 作者姓名： | 刘波 韩春林 何子述 |
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| 作者单位： | 电子科技大学电子工程学院 成都610054 |
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| 摘 要： | 对非线性阵列相关问题进行分析,提出了一种新的非线性去相关技术来提高数字阵瞬时动态范围。该方法主要在接收机中利用了方向相反的两级相移,第一级在接收机前端,第二级在数字部分。理论分析表明利用该方法能有效地去相关杂散、互调失真等各种非线性,从而最大限度地提高系统的瞬时动态范围。仿真结果验证了该方法的有效性。
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| 关 键 词： | 去相关 数字阵 数字波束形成 动态范围 非线性 |
A Novel Method for Mitigating Nonlinear Correlation in Digital Arrays |
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| LIU Bo,HAN Chun-lin,HE Zi-shu. A Novel Method for Mitigating Nonlinear Correlation in Digital Arrays[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2007, 0(5) |
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| Authors: | LIU Bo HAN Chun-lin HE Zi-shu |
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| Abstract: | The nonlinear correlation problems for digital arrays are analyzed in this paper. Then a novel approach is proposed to increase the Instanuouse Dynamic Range (IDR) levels for digital arrays. The method mainly employs two different direction phase shifts. The theoretical analysis of the proposed method shows that dynamic range enhancement can be achieved through the use of the method and decorrelation of spurs, phase noise, and various intermodulation products. Simulation results show the effectiveness of the proposed method. |
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| Keywords: | decorrelation digital arrays digital beamforming dynamic range nonlinearities |
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