| 基于ADF4360-7的宽带雷达信号源设计 |
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| 引用本文： | 沈伟,文必洋,马志刚,王才军,严卫东.基于ADF4360-7的宽带雷达信号源设计[J].现代雷达,2006,28(8):39-42. |
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| 作者姓名： | 沈伟 文必洋 马志刚 王才军 严卫东 |
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| 作者单位： | 武汉大学电子信息学院,湖北,武汉,430079 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 通过分析数字直接合成技术(DDS)和锁相环技术(PLL)的各自性能特点,介绍了一种采用DDS输出的低频段线性调频信号作为PLL激励源的方案来产生高频段线性调频信号,并指出了设计中需要注意的事项。在该系统中采用AD I公司新推出的芯片ADF4360-7芯片设计锁相环路,ADF4360系列芯片内部集成了VCO,这是ADF4360的一大新的特点。通过该系统实现的宽带雷达信号作为UHF雷达的信号源,其输出频率范围为590.769 MHz~609.231 MHz。
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| 关 键 词： | 宽带雷达信号 ADF4360-7芯片 锁相环 直接频率合成 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-06-18 |
Design of Local Oscillator for Wideband Radar with Chip ADF4360-7 |
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| SHEN Wei,WEN Bi-yang,MA Zhi-gang,WANG Cai-jun,YAN Wei-dong.Design of Local Oscillator for Wideband Radar with Chip ADF4360-7[J].Modern Radar,2006,28(8):39-42. |
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| Authors: | SHEN Wei WEN Bi-yang MA Zhi-gang WANG Cai-jun YAN Wei-dong |
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| Institution: | School of Electronic Information, Wuhan University, Wuhan 430079, China |
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| Abstract: | In this paper,the configuration of ADF4360-7 and the high performance of PLL chip are briefly introduced;The system is designed for the local oscillator of wideband radar.The hardware block diagram is presented to explain the work of the scheme,and the control flow to generate the chirp signal is described in detail.Finally the diagrams of output of the single frequency generated by the lower single frequency and the chirp signal generated by the reference frequency source produced by the chip AD9854 are given at the end.The diagrams of phase noise and some other analyses of the chip are also given. |
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| Keywords: | wideband-radar signal AD4360-7 phaseiocked loop direct digital synthesize |
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