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COFDM功能模块在DRM系统中的实现与研究 被引量:1
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作者 安亚东 王东方 +2 位作者 阳星 刘涛 吴虹 《南开大学学报(自然科学版)》 CAS CSCD 北大核心 2006年第3期68-73,共6页
首先介绍了30 MHz以下AM广播的发展现状,分析说明了DRM系统取代传统AM广播的必然性,并对DRM发射系统各模块的功能进行了简要的介绍,重点论述了COFDM模块的基本原理及其功能,最后提出了一个基于DSP技术的DRM系统OFDM模块的实现方案,并且... 首先介绍了30 MHz以下AM广播的发展现状,分析说明了DRM系统取代传统AM广播的必然性,并对DRM发射系统各模块的功能进行了简要的介绍,重点论述了COFDM模块的基本原理及其功能,最后提出了一个基于DSP技术的DRM系统OFDM模块的实现方案,并且给出了该方案的硬件结构和主程序流程. 展开更多
关键词 编码正交频分复用 数字调幅音频广播 数字信号处理器 QAM映射
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Characteristics of Digital Broadcasting Technology and Its Development Research
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作者 Mo YANG 《International Journal of Technology Management》 2014年第11期7-9,共3页
Driven by the rapid development of agricultural science and technology, many techniques have been developed rapidly, especially the development of broadcasting technology which earth-shaking changes have taken place. ... Driven by the rapid development of agricultural science and technology, many techniques have been developed rapidly, especially the development of broadcasting technology which earth-shaking changes have taken place. The advent of digital broadcasting technology makes the broadcast technology enter a new stage. With its low energy consumption and large coverage area, digital broadcasting technology was widely welcomed by the broadcast television industry. This paper analyzes digital audio broadcasting, multimedia digital broadcasting and digital AM broadcasting, and further concretely elaborates the application prospects of digital broadcasting technology. 展开更多
关键词 shock digital broadcasting TECHNOLOGY CHARACTERISTICS APPLICATION
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