| 一种高性能跳频信号源的设计与实现 |
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| 引用本文： | 李锋,盛利元,杨俊,李献斌.一种高性能跳频信号源的设计与实现[J].宇航计测技术,2010,30(6):35-38,5. |
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| 作者姓名： | 李锋 盛利元 杨俊 李献斌 |
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| 作者单位： | [1]中南大学物理科学与技术学院,长沙410083 [2]国防科学技术大学机电工程与自动化学院,长沙410073 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 设计了一种高性能跳频信号源。该信号源以FPGA为控制电路核心,在FPGA内部实现了信号源数字部分相关电路功能,利用高性能的AD9777实现数模转换,通过串行通信SPI接口控制AD9777的工作模式;该跳频信号源采用改进的L-G模型电路作为跳频序列发生器,采用正弦波直接频率发生器作为跳频信号源的基础。实验测试证明:该跳频信号源性能良好,能满足实际工程的需要。
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| 关 键 词： | 跳频 信号源 控制电路 数模转换 |
The Design and Implementation of a High Performance Frequency-hopping Signal Source |
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| LI Feng,SHENG Li-yuan,YANG Jun,LI Xian-bin.The Design and Implementation of a High Performance Frequency-hopping Signal Source[J].Journal of Astronautic Metrology and Measurement,2010,30(6):35-38,5. |
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| Authors: | LI Feng SHENG Li-yuan YANG Jun LI Xian-bin |
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| Institution: | 1. Sehool of Physics Seienee and Technology, Central South University, Changsha 410083 ; 2. College of Meehatronies Engineering and Automation, National University of Defense Teehnology, Changsha 410083 ) |
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| Abstract: | A frequency-hopping signal based on FPGA and AD9777 is designed. The signal source＇ s control circuit core is FPGA, the realization of circuit digital part is based on FPGA. It uses the high-performance AD9777 to achieve digital-analog converter and controls AD9777＇s operating mode through the SPI serial communication interface; the frequency-hopping signal source uses the improved L-G model circuit as the frequency hopping sequence generator and direct frequency sine wave generator as frequency-hopping signal source basis. Experimental tests prove that the signal source has good performance and can meet practical engineering requirements. |
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| Keywords: | Frequency-hopping Signal source Control circuit Digital-analog conversion |
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