基于软件无线电技术下的广播数字电台系统

发布时间：2018-01-16 16:42

本文关键词：基于软件无线电技术下的广播数字电台系统　出处：《西部广播电视》2016年23期 　论文类型：期刊论文

【摘要】：自20世纪80年代初以来,由于蜂窝移动系统的迅猛发展,世界各国制定了大量模拟和数字移动系统的标准。虽然市场分析已经认识到通用全球标准的商业价值,但2000年,亚洲、欧洲和美洲之间的工业竞争使制定一个唯一的未来移动系统标准困难重重。因此,作为该领域一种在潜在的实用解决方法,软件无线电概念应运而生:软件无线电是一种用户终端能够不断适应其所在的无线电环境的软件实现方法。事实上,术语“软件无线电”表示用软件定义无线电台的功能,其含义是用软件定义无线电接口的典型功能,在传统无线电台中,这些典型功能通常是用专用硬件在发射(TX)和接收(RX)设备中实现的。定义无线电台接口的软件的出现必然意味要用DSP(通用信号处理器)代替专用硬件,以实时执行所需的软件。本文讨论软件无线电的关键原理、主要特点,及其决定广播数字电台的一个关键点,数字信号也是软件无线电技术的主攻方向,从而为我国的广播电视事业开创新的蓝图。
[Abstract]:Since the beginning of 1980s, due to the rapid development of cellular mobile systems. Many countries around the world have developed standards for analog and digital mobile systems. Although market analysis has recognized the commercial value of universal global standards, in 2000, Asia. Industrial competition between Europe and the Americas makes it difficult to develop a single future mobile system standard. Therefore, it is a potential practical solution in this area. The concept of software radio emerges as the times require: software radio is a software implementation method in which the user terminal can adapt to the radio environment. The term "software radio" refers to the function of a radio station defined by software, which means defining a typical function of a radio interface by software, in traditional radio stations. These typical functions are usually implemented with dedicated hardware in transmitter TX and receiver RX devices. The emergence of software that defines radio interfaces necessarily means using DSPs (Universal signal processors). Instead of dedicated hardware. This paper discusses the key principle and main characteristics of software radio, and the key point that determines the broadcasting digital radio. Digital signal is also the main attack direction of software radio technology. Thus for our country's radio and television cause to create a new blueprint.
【作者单位】：陕西省渭南市文化广电新闻出版局;
【正文快照】： 1无线电软件的主要特征1.1拥有较强的灵活性无线电软件可以通过添加模块软件,添加新的功能。促使与其他任何电台进行沟通,并可以达到与其他电台的射频中继。1.2拥有特强的开放性无线电软件采用了模块化、标准化的构建,提高了硬件可以随着技术的发展而更新而扩大。软件也可以及

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