| 利用多通道、低速率采样信号重构完整宽带信号的稳健方法 |
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| 引用本文： | 马仑,赵祥模,茹锋.利用多通道、低速率采样信号重构完整宽带信号的稳健方法[J].现代电子技术,2011,34(19):65-68. |
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| 作者姓名： | 马仑 赵祥模 茹锋 |
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| 作者单位： | 1. 长安大学信息工程学院,陕西西安,710064
2. 长安大学电子与控制工程学院,陕西西安,710064 |
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| 基金项目： | 国家自然科学基金资助项目(50978030); 中央高校基本科研业务费专项基金(CHD2010JC078)资助项目 |
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| 摘 要： | 对宽带信号直接采样要求模数转换器具有高采样速率,这将导致采样精度降低并且难以实现。采用将宽带模拟信号进行多通道、低速率采样的思路,提出一种利用自适应波束形成技术恢复信号完整带宽的新方法。该方法可以同时实现低采样速率与高精度,而且对通道延迟及其他误差稳健。仿真数据的处理结果验证了该方法的有效性。
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| 关 键 词： | 多通道采样 自适应波束形成 模数转换器 通道延迟 |
Robust Method of Reconfiguring Complete Broadband Signal by Multi-channel and Low Rate Sampling Signal |
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| MA Lun,ZHAO Xiang-mo,RU Feng.Robust Method of Reconfiguring Complete Broadband Signal by Multi-channel and Low Rate Sampling Signal[J].Modern Electronic Technique,2011,34(19):65-68. |
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| Authors: | MA Lun ZHAO Xiang-mo RU Feng |
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| Institution: | MA Lun1,ZHAO Xiang-mo1,RU Feng2(1.School of Information Engineering,Chang'an University,Xi'an 710064,China,2.School of Electronic & Control Engineering,China) |
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| Abstract: | Sampling broadband signal directly requires a high sampling rate of A/D converter,which leads to a reduction of the sampling accuracy and is difficult to be realized.An idea that performing a multi-channel and low rate sampling with broadband analog signal is introduced,a new method of utilizing adaptive beamforming technique to recover complete bandwidth of the broadband signal is proposed.Application of this method can implement both low rate sampling and high accuracy;in addition,it is robust to channel ... |
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| Keywords: | multi-channel sampling adaptive beamforming analog/digital converter channel delay |
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