| 基于DDS的S波段扫频源设计 |
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| 引用本文： | 张艳,陆涓涓,蒋开创,周宏雷. 基于DDS的S波段扫频源设计[J]. 制导与引信, 2011, 32(2): 57-60 |
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| 作者姓名： | 张艳 陆涓涓 蒋开创 周宏雷 |
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| 作者单位： | 1. 国防科学技术大学航天与材料工程学院,湖南长沙,410073
2. 上海无线电设备研究所,上海,200090 |
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| 摘 要： | 介绍一种S频段PLL+DDS扫频源的实现方法和关键技术。通过粗调PLL和细调DDS来实现小步进、低杂散、低相噪频率输出。通过实际测量,验证了该扫频源在保证良好的杂散和相位噪声性能的同时,可以产生连续波信号、线性调频信号和频率捷变信号。
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| 关 键 词： | 锁相环 频率合成器 相位噪声 |
The S Band Swept Frequency Synthesizer Design Based on DDS |
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| ZHANG Yan,,LU Juan-juan,JIANG Kai-chuang,ZHOU Hong-lei. The S Band Swept Frequency Synthesizer Design Based on DDS[J]. Guidance & Fuze, 2011, 32(2): 57-60 |
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| Authors: | ZHANG Yan LU Juan-juan JIANG Kai-chuang ZHOU Hong-lei |
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| Affiliation: | ZHANG Yan1,2,LU Juan-juan3,JIANG Kai-chuang3,ZHOU Hong-lei3(1.College of Aerospace and Materials Engineering,NUDT,Changsha Hunan 410073,China,2.The Navy of Military Representative Office in SAST,3.Shanghai Radio Equipment Research Institute,Shanghai 200090,China) |
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| Abstract: | Introduces the realization scheme and key technology of S band PLL＋DDS swept frequency synthesizer.Glancing adjusting the PLL and nice adjusting the DDS design approach is used to realize small step-size,high spectrum purity and low phase noise.The specifications shows that the swept frequency synthesizer can realize continuous signal,LFM and agile signal with high spectrum purity and low phase noise. |
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| Keywords: | phase-locked loop frequency synthesizer phase noise |
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