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软件无线电(Software Radio)是近几年提出的新概念.实际上,它是各种不同制式无线通信系统迅猛发展又互不兼容而摆在通信专家们面前的问题.随着高速数字信号处理技术、高速微处理器技术和快速可编程技术的飞跃发展,这一问题逐渐有了解决的可能,这就是软件无线电技术的采用.如果说,无线通信“从模拟通信到数字通信”、“从固定通信到移动通信”是通信技术的两次革命,那么,软件无线电技术将是通信技术发展的又一里程碑.本文将介绍软件无线电的发展过程、系统组成及特点等.
Software Radio (Software Radio) is a new concept put forward in recent years, in fact, it is a problem that many communication experts are facing before the rapid development and incompatibility of different standard wireless communication systems.With the rapid development of digital signal processing , High-speed microprocessor technology and rapid programmable technology leap in development, the problem has gradually been solved, which is the use of software radio technology.If we say that wireless communications “from analog communications to digital communications,” “from the fixed Communication to mobile communication ”is the two revolutions in communication technology, then, software radio technology will be another milestone in the development of communication technology.This article will introduce the development process, system components and characteristics of software radio.