| 一种基于软件无线电的中频数字接收机的设计实现 |
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| 引用本文： | 邱雅,郭东恩.一种基于软件无线电的中频数字接收机的设计实现[J].计算机测量与控制,2012,20(4):1070-1072,1075. |
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| 作者姓名： | 邱雅 郭东恩 |
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| 作者单位： | 南阳理工学院软件学院,河南南阳,473004 |
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| 摘 要： | 中频数字接收机是随着数字信号处理技术的不断发展而成熟起来的;此文主要是基于软件无线电的思想,采用MATLAB和DSP相结合的新颖开发方法,利用MATLAB-DSP集成开发环境Embedded Target for the TI TMS320C6000DSP Platform,从Simulink模型自动生成TIC6000DSP的可执行代码,从而缩短了DSP算法软件的研发周期;文中的输入信号是AM调制信号,采样率为1.6MHz,调制信号为2kHz,载波为400kHz,经过128倍抽取和滤波,最后输出数据流速率为12.5kHz;通过仿真实验证明,采用软件无线电的思想不仅满足了设计需求,而且增强了不同系统之间的互通性、兼容性、灵活性和可靠性,同时降低了成本。
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| 关 键 词： | 下变频 数控振荡器 CIC 整形滤波 |
Dsign and Implementation of IF Digital Receiver Based on Software Defined Radio |
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| Qiu Ya
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Guo Dongen.Dsign and Implementation of IF Digital Receiver Based on Software Defined Radio[J].Computer Measurement & Control,2012,20(4):1070-1072,1075. |
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| Authors: | Qiu Ya Guo Dongen |
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| Affiliation: | (School of Software,Nanyang Institute of Technology,Nanyang 473004,China) |
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| Abstract: | IF digital receiver with the digital signal processing technology continues to evolve and mature.This paper is based on the idea of software radio,combined with MATLAB and DSP development of novel methods,using the MATLAB-DSP integrated development environment Embedded Target for the TI TMS320C6000 DSP Platform,and it can create DSP executed code from Simulink model automatically.thus shortening the DSP algorithm software development cycle.In this paper,the input signal is AM modulated,the sampling rate is 1.6MHz,modulated signal is 2KHz,the carrier is 400KHz,after 128-fold of extraction and filtering,the final output data flow rate is 12.5KHz.Simulation experiments show that the use of software radio design not only meet the design requirements,but also enhances interoperability between different systems,compatibility,flexibility and reliability,while reducing costs. |
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| Keywords: | DDC NCO CIC filter shaping filter |
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