| 基于DDS技术的X波段频率合成器 |
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| 引用本文： | 张卫红,胡晓文.基于DDS技术的X波段频率合成器[J].雷达与对抗,2001(3):47-53,42. |
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| 作者姓名： | 张卫红 胡晓文 |
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| 作者单位： | 华东电子工程研究所 安徽合肥230031
(张卫红)，华东电子工程研究所 安徽合肥230031(胡晓文) |
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| 摘 要： | 介绍了DDS的基本原理及其杂波分布，分析了影响杂波的主要因素，提出了利用DDS技术实现X波段密跳点频率合成器的方案和实验结果。此合成器的输出信号带宽1G、跳频间隔1MHz、偏离载波1kHz处的相位噪声可达105dBc/Hz、宽带杂波抑制优于60dB，具有宽带宽、低相噪、高杂波抑制，小步进等特点。
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| 关 键 词： | DDS 频率合成器 X波段 |
X-Band Frequency Synthesizer Based on DDS Technique |
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| ZHANG Wei-hong,HU Xiao wen.X-Band Frequency Synthesizer Based on DDS Technique[J].Radar & Ecm,2001(3):47-53,42. |
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| Authors: | ZHANG Wei-hong HU Xiao wen |
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| Abstract: | The fundamental principle and the clutter distributing of direct digital synthesis(DDS) are introduced. The major factors that influence the clutter are analyzed. An implementation scheme and some experimental results of an X band frequency synthesizer using DDS technique are presented. The synthesizer can generate a signal with a bandwidth of 1GHz,step frequency of 1MHz, phase noise of 105dBc/Hz at an offset of carrier frequency of 1kHz and wide band clutter rejection superior to 60dB. So it is characterized by wide band, low phase noise, excellent clutter rejection and small step frequency. |
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| Keywords: | DDS frequency synthesizer clutter rejection phase noise |
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