软件无线电信道处理的 DSP 实现摘要 软件无线电（SDR）作为一种新的无线通信概念和体制近年来浮出水面,日益受到国内外相关通信厂商的重视。它使得通信体制具有很好的通用性、灵活性和可配置性,并使系统互联和升级变得容易。软件无线电的基本概念是把硬件作为无线通信的基本平台，把尽可能多的个人通信功能用软件实现，是一种用软件来实现物理层连接的无线通信设计。本文重点讨论了软件无线电中不同信道的处理技术,其技术关键在于构建不同频段的数字滤波器，通过滤波器进行不同信道信息的接收处理。在建立软件无线电信道模型的基础上,利用 MATLAB 实现多阶 FIR 滤波器的设计,并将算法移植到 DSP 软件设计当中, 并构建基于 DSP 的硬件平台，使算法在硬件平台的运行结果达到软件无线电的信道处理要求。通过本课题的讨论，掌握软件无线电信道的 DSP 实现方法，重点讨论软件无线电中的信道处理算法，通过仿真，选择合适的滤波算法，并构建基于 DSP的硬件平台，使算法在硬件平台的运行结果达到 SDR 的信道处理要求。关键词：软件无线电 信道 数字信号处理 FIR 滤波器SDR Channel Processing Based On DSPAbstract The basic concept of software radio is that hardware is the basic platform of wireless communication. More and more function of personal communication is realized by software.Software radio is the design of wireless communication which realizes the hardware connection by software. The papermainly studies the processing technique of different channels in SDR (Software Defined Radio). The key technique is to design digital filters of different frequency bands to receive the information of different channels. Based on founding the model of SDR channel processing use MATLAB to realize the design of FIR filters by setting different parameters and transfer the arithmetic to DSP software design. After that use CCS to simulate the FIR filter. The effect can reach the demand of channel processing for SDR.Key words SDR channel DSP FIR filter引言以现代通信理论为基础,以数字信号处理为核心,以微电子技术为支...
