【摘要】 <正> 1.引言软件无线电(Software Radio,Software Defined Radio)起源于美国国防部的易通话(speakeasy)战术通信系统计划。软件无线电的概念是在1992年全美远程会议上由Joe Mitola等人率先提出的,其定义为:软件无线电基于一个硬件平台,其A/D(模/数)变换应尽量靠近天线,而将尽可能多的无线通信用软件来实现。由此可见,软件无线电代表的是一个软件可重构的无线电体系,它的可重构性主要体现在其射频(RF)、中更多还原

【Abstract】 Using general- purpose platforms and software modules instead of application specific hardware can facilitate application of the software radio technique using computer and network based architecture. As the development of network, a new technology of software radio based on network_Visual Radio is proposed. In this paper, we derivate the concept of Visual Radio which is based on network from Software Defined Radio’s developing process; introduce its background and narrate its technical content and peculiarity,and expect its future.更多还原