Multi-mode all-digital transmitters for software defined radio applications

适用于软件定义无线电应用的多模式全数字发射机

• 批准号: 417859-2011
• 负责人: Ghannouchi, Fadhel
• 金额: $ 6.99万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=530962
• 关键词: Multi; mode; digital; transmitters; software

Advanced wireless communication systems require multi-standard capabilities to be more ubiquitous, mobile, agile, and secure. This calls for the development of software defined radio transceivers. So far, extensive research activities have been carried out to design the RF front-end of such multi-band transceivers. This preliminary focused on the receiver design. Conversely, the transmitter side is still at the early research and development stages. Conventional transmitter RF front-end architectures are analog-based and therefore are hard to reconfigure and are prone to noise, nonlinearity and hardware impairments. A more compelling alternative is to move the design to digital domain. This collaborative research proposal aims at developing innovative all-digital RF transmitters for advanced communication systems using the latest semi-conductor GaN technology. The targeted architecture is based on switching-mode RF power amplifier that makes it possible to attain extremely high power efficiency levels and high speed digital signal processing block using pulse modulation technique. The proposed research project aims at two main objectives:

先进的无线通信系统需要多标准能力以变得更加普遍、移动的、敏捷和安全。这就要求开发软件定义的无线电收发器。到目前为止，已经进行了广泛的研究活动，以设计这样的多频带收发器的RF前端。本文主要介绍了接收机的设计。相反，发射机方面仍处于早期研究和开发阶段。传统的发射机RF前端架构是基于模拟的，因此很难重新配置，并且容易受到噪声、非线性和硬件损伤的影响。一个更有吸引力的选择是将设计转移到数字领域。这项合作研究计划旨在利用最新的半导体GaN技术为先进的通信系统开发创新的全数字RF发射机。目标架构是基于开关模式RF功率放大器，使其能够实现极高的功率效率水平和高速数字信号处理块使用脉冲调制技术。拟议的研究项目旨在实现两个主要目标：