| 基于IP复用技术的数字鉴频器设计 |
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| 引用本文： | 晏敏,李旭,章兢,侯志春.基于IP复用技术的数字鉴频器设计[J].宇航计测技术,2010,30(1):38-42. |
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| 作者姓名： | 晏敏 李旭 章兢 侯志春 |
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| 作者单位： | 1. 湖南大学物理与微电子科学学院,湖南长沙,410082
2. 湖南大学电气与信息学院,湖南长沙,410082 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 在分析了坐标旋转计算机CORDIC算法原理的基础上,建立了一种用于数字信号处理数字鉴频器的模型,它采用以裁剪后的8051 IP核为控制核心,基于CORDIC算法的流水线结构和差分结构,完成了数字鉴频实时电路的设计,并在FPGA中实现数字鉴频器功能,它能显示两路基带信号I、Q之间的频率差。
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| 关 键 词： | 坐标旋转计算机算法 数字鉴频 IP FPGA |
A Digital Frequency Discrimination Design Based on Reusable IP Technology |
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| YAN Min,LI Xu,ZHANG Jing,HOU Zhi-Chun.A Digital Frequency Discrimination Design Based on Reusable IP Technology[J].Journal of Astronautic Metrology and Measurement,2010,30(1):38-42. |
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| Authors: | YAN Min LI Xu ZHANG Jing HOU Zhi-Chun |
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| Institution: | ( Hunan University 1. College of Physics and Micro Electron ; 2. College of Electrical and Information Engineering;Changsha 410082) |
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| Abstract: | This paper presents a digital frequency discrimination structure and designs a real time digital frequency discrimination display circuit on the basis of the principle of CORDIC Algorithm.It uses the revised 8051 IP core as control core and accomplishes the digital frequency discrimination in FPGA and shows the frequency difference between two base band signals I、Q based on the pipelined CORDIC algorithm structure and differential structure. |
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| Keywords: | IP FPGA ~+Coordinate rotation digital computer algorithm Digital frequency discrimination Intellectual property Field Programmable Gate Array |
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