SDR──未来无线通信设备的基本概念

SDR-A BASIC CONCEPT FOR THE NEW-GENERATION RADIO COMMUNICATIONS EQUIPMENT

根据国际上的最新进展，本文对软件定义无线电（ＳＤＲ）进行讨论和介绍。ＳＤＲ是一个新的概念和体系，它是一个可重编程和可重构的，能支持多种无线通信体制和标准的无线通信设备。本文介绍了美国对ＳＤＲ设备的要求，此技术为产品开发、制造商、运营商及最终用户带来了好处，以及ＳＤＲ所面临的挑战。显然，在几年内，ＳＤＲ技术将广泛使用于新一代无线通信产品的设计中，基于ＳＤＲ的无线通信设备将成为市场中的主要部分。

Based on the latest international development this paper presents an in-depth dis- cussion of the Software Defined Radio (SDR) technology As a new concept or system SDR is re -programmable and re-configurable and capable of supporting radio communications systems and standards This paper shows what the US repuires in the SDR equipment the benefits brought along by this technology to prodrct developers as well as the challenges facing SDR It is evident that in the designing of the new-generation radio communications prodrcts and the SDR -based equipment will grow up to become a key element of the radio communications market