| 基于DSP BUILDER的数字下变频器设计 |
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| 作者姓名： | 史学书 马宏 |
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| 作者单位： | 装备指挥技术学院测控工程研究中心 北京101416 |
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| 摘 要： | 介绍利用DSP BU ILDER设计基于FPGA的数字下变频器的方法,研究使用专用乘法器的NCO设计、半波带滤波器多相抽取处理结构和FIR滤波器的分布式算法,同时给出实际应用的设计方案和仿真分析结果。
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| 关 键 词： | 软件无线电 数字下变频器 多相滤波器 数控振荡器 |
The DSP Builder Based Design of Digital Down-converter |
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| Authors: | Shi Xue shu Ma Hong |
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| Abstract: | The design of a FPGA based digital down converter(DDC) by use of the DSP Builder is described.Several algorithm needed in DDC design are discussed in detail,and the Specific multiplier based numerically controlled oscillator(NCO) architecture design is given.The distributed arithmetic of FIR fifter design is introduced.The results of the software emulation and hardware tests show that the designed DDC can meet the various needs of software radio systems. |
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| Keywords: | Software radio Digital downconverter Polyphase filter Numerically Controlled Oscillator |
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