| 软件雷达射频采样ADC性能需求分析 |
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| 引用本文： | 卢庆广,夏栋.软件雷达射频采样ADC性能需求分析[J].舰船科学技术,2012,34(1):128-130. |
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| 作者姓名： | 卢庆广 夏栋 |
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| 作者单位： | 海军工程大学海洋电磁环境研究所,湖北武汉,430033 |
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| 摘 要： | 软件雷达的目标是使ADC尽可能早的将接收到的信号数字化,从而使更多的信号处理和数据处理通过软件来实现。由于雷达射频频率高,无法采用Nyquist低通采样技术对其进行采样。本文研究了利用带通采样定理使用较低的采样频率实现雷达模拟信号到数字信号的转化,并分别对雷达射频信号进行带通采样对模数转换器采样速率、转换位数、信噪比等性能参数进行了具体分析,为模数转换器的设计提供参考。
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| 关 键 词： | 软件雷达 射频采样 ADC |
Requirements analysis on the ADC of software radar RF sampling |
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| LU Qing-guang
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XIA Dong.Requirements analysis on the ADC of software radar RF sampling[J].Ship Science and Technology,2012,34(1):128-130. |
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| Authors: | LU Qing-guang XIA Dong |
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| Institution: | (Institute of Ocean Electromagnetic Environment,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | The target of software radar is to digitalize the received signals so that more signal process and data process are completed by software.Due to the high frequency of RF,Nyquist low-pass sampling technique is invalid.This text explores how to accomplish the analog to digital conversion of radar signal with lower sampling frequency by band-pass sampling principle.The reference of ADC design is provided through the specific analyses of sampling rate,ADC and SNR. |
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| Keywords: | software radar RF sampling ADC |
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