| 一种基于DDS技术的新型宽带雷达信号源的设计 |
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| 引用本文： | 王志明,高梅国,商蓉蓉.一种基于DDS技术的新型宽带雷达信号源的设计[J].现代电子技术,2006,29(9):58-60. |
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| 作者姓名： | 王志明 高梅国 商蓉蓉 |
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| 作者单位： | 北京理工大学,北京,100081 |
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| 摘 要： | AD9858是Analog Devices公司的一款高性能DDS芯片,可产生多种形式的信号,在对DDS原理以及AD9858器件研究的基础上,介绍了一种基于AD9858的宽带雷达信号源的设计方案,可输出单点频正弦信号、基带CHIRP信号、基带BPSK信号、射频CHIRP信号、射频BPSK信号。射频CHIRP信号由基带CHIRP信号经过倍频链转换到相应频段,射频BPSK由基带BPSK经过混频转换到相应频段。输出信号形式可由上位机通过USB接口灵活控制。
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| 关 键 词： | DDS 雷达信号源 CHIRP BPSK |
| 文章编号： | 1004-373X（2006）09-058-03 |
| 收稿时间： | 2005-10-26 |
| 修稿时间： | 2005年10月26 |
A New Design of Wide Band Radar Signal Source Based on DDS |
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| WANG Zhiming,GAO Meiguo,SHANG Rongrong.A New Design of Wide Band Radar Signal Source Based on DDS[J].Modern Electronic Technique,2006,29(9):58-60. |
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| Authors: | WANG Zhiming GAO Meiguo SHANG Rongrong |
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| Affiliation: | Beijing Institute of Teehnology, Beijing, 100081, China |
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| Abstract: | AD9858 is a high performance DDS chip of Analog Devices,it could be used to generate many kinds of signal.Based on the researching in the principle of DDS and the chip,a new design of wide band radar signal source is introduced,this design can generate these signals: baseband sine signal,baseband CHIRP signal,baseband BPSK signal,RF CHIRP,RF BPSK.The RF CHIRP is transferred from the baseband CHIRP to the appropriate band with a frequency multiplier chain,and the RF BPSK is transferred from the baseband BPSK to the appropriate band with a frequency mixer.The kind of output can be changed conveniently with a Win32App via the USB interface. |
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| Keywords: | DDS radar signal source CHIRP BPSK |
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