| 超宽带正交解调接收机信号采集系统设计 |
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| 引用本文： | 焦国栋,梁步阁,袁乃昌.超宽带正交解调接收机信号采集系统设计[J].系统工程与电子技术,2005,27(11):1873-1875. |
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| 作者姓名： | 焦国栋 梁步阁 袁乃昌 |
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| 作者单位： | 国防科技大学四院微波技术发展中心,湖南,长沙,410073 |
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| 基金项目： | 国家“863”高技术计划基金资助课题(2002AA835040) |
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| 摘 要： | 根据超宽带信号处理及实现目标识别的需要,设计并实现了一套超宽带脉冲体制正交解调接收机信号采集系统。介绍了系统的硬件和软件设计,提出了I/Q正交解调及脉冲体制超宽带信号幅相误差校正方案,并构建了适于超宽带信号频谱分析的双谱分析模块。实际应用表明,该系统达到了实时高速稳定数据采集的要求。
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| 关 键 词： | 超宽带 数据采集卡 I/Q解调 双谱 |
| 文章编号： | 1001-506X(2005)11-1873-03 |
| 修稿时间： | 2004年8月1日 |
Design of signal acquisition system for ultra-wideband quadrature demodulation receiver |
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| JIAO Guo-dong,LIANG Bu-ge,YUAN Nai-chang.Design of signal acquisition system for ultra-wideband quadrature demodulation receiver[J].System Engineering and Electronics,2005,27(11):1873-1875. |
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| Authors: | JIAO Guo-dong LIANG Bu-ge YUAN Nai-chang |
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| Abstract: | An ultra-wideband quadrature demodulation receiver signal acquisition system for the purpose of object recognition is designed.The design of hardware and software is presented,especially the I/Q demodulation and amplitude and phase error-correction are introduced,and a bispectral analysis module is built.The design is tested,and the application shows that it's a qualified system for real-time and high-speed data acquisition. |
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| Keywords: | ultra-wideband DAQ card I/Q demodulation bispectrum |
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