| 硅基超材料太赫兹波电光调制器 |
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| 引用本文： | 胡广尧,文天龙,张怀武.硅基超材料太赫兹波电光调制器[J].压电与声光,2020,42(3):299-302. |
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| 作者姓名： | 胡广尧 文天龙 张怀武 |
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| 作者单位： | （1.中国电子科技集团公司第三十八研究所，安徽 合肥 230088；2.中国电子科技集团公司第二十六研究所，重庆 400060） |
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| 基金项目： | 中国电科集团青年拔尖人才基金资助项目（2017 DK1269）；安徽省对外科技合作专项基金资助项目（1804b06020372） |
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| 摘 要： | 该文介绍了一种基于声光调制的微波信号多普勒移频方法。该技术基于微波光子信号处理和声光移频技术，在光学域上实现了微波信号的多普勒频移，能够用于产生雷达干扰信号。系统的工作频段为2～20 GHz，测试结果表明，速度拖引干扰信号的移频范围达到±1 MHz，最小移频量为±10 Hz。系统实现了目标速度从1 200 m/s减小到1 000 m/s情况下雷达脉冲信号的多普勒频移模拟测试。
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| 关 键 词： | 雷达对抗 声光移频 多普勒 微波光子 |
Silicon based Metamaterial Terahertz Wave Electro optic Modulator |
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| HU Guangyao,WEN Tianlong,ZHANG Huaiwu.Silicon based Metamaterial Terahertz Wave Electro optic Modulator[J].Piezoelectrics & Acoustooptics,2020,42(3):299-302. |
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| Authors: | HU Guangyao WEN Tianlong ZHANG Huaiwu |
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| Affiliation: | (1. The 38th Institute of China Electronic Technology Group Corporation, Hefei 230088, China;;2. The 26th Institute of China Electronic Technology Group Corporation, Chongqing 400060, China) |
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| Abstract: | A Doppler frequency shift method based on acousto optic modulation for microwave signals was introduced in this paper. This technology is based on microwave photonics signal processing and acousto optic frequency shifting technology. The Doppler frequency shift of microwave signals in the optical domain has been realized and it can be used for generating radar interference signals. The operating frequency range of the system is 2 20 GHz. The test results show that the frequency shift range of the velocity deception interference signals is ±1 MHz and the minimum frequency shift is ± 10 Hz. The system realizes the Doppler frequency shift simulation test of radar pulse signal when the target velocity reduced from 1 200 m/s to 1 000 m/s. |
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| Keywords: | radar countermeasure acousto optic frequency shift Doppler microwave photonics |
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