摘要
论述了带通信号采样定理,在对带通采样后的频谱结构做了详细分析的基础上,提出中频频率、采样频率的选取方法。将带通欠采样技术运用到软件无线电中频接收机设计中,并给出了带通采样定理在的不同条件下Matlab仿真的结果,验证了带通采样技术在宽带数字多通道、多速率、多模式软件无线电中频接收机设计中的可行性和实用性,在工程应用中具有较大的参考意义。
This paper discusses the sampling theory of bandpass signal,analyzes the configuration of frequency spectrum and proposes a method for IF frequency and sampling frequency selection.The bandpass sampling technology is applied to the design of software radio IF receiver,the simulation results by MATLAB are given,and its feasibility and practicality in design of broadband digital multi-channel,multi-speed and multi-mode software radio receiver is verified.This is of fairly great reference value in the engineering application.
出处
《通信技术》
2010年第4期1-3,共3页
Communications Technology
基金
国家自然科学基金项目
项目名称:基于软件无线电的中频数字化接收机技术研究(批准号:10876035)
