CAREER: High-Performance Ultra-Wideband Radio Design

职业：高性能超宽带无线电设计

• 批准号: 0134629
• 负责人: Won Namgoong
• 金额: $ 32.99万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-06-01 至 2007-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0134629&HistoricalAwards=false
• 关键词: CAREER; Performance; Ultra; Wideband; Radio

0134629NamgoongUltra-wideband (UWB) radio systems are emerging as one of the key technologies for high bandwidth digital wireless communications. The rationale for deploying UWB radio systems lies in the benefits of exceptionally wide bandwidths: covertness (very low power density signal), very accurate ranging (down to a few centimeters), good material penetration (at low frequencies) and high performance in dense multipath (because of fine time resolution).A common concern among UWB proponents is that an integrated, high-performance radio may not be achievable, because of the extremely high bandwidth, dynamic range, and clock speeds required. Such concern appears to lead to two alternative development paths. In the first, the UWB radio system is scaled down to operate at a much reduced bandwidth, compromising much of the benefits of an UWB system. In the other, advanced process technology with numerous discrete components is employed, albeit at the expense of significantly higher cost and power consumption.In this proposal, the PI presents a promising approach to realizing an integrated high-performance UWB radio using today's low-cost standard CMOS technology without compromising the signal bandwidth. To meet the design requirements of a high-performance UWB radio, which are currently far from being practical, he proposes an architecture that channelizes the incoming signal into frequency subbands, then processes them in parallel. By channelizing the incoming signal, the circuit requirements in both the analog front-end and digital back-end are dramatically relaxed, especially when large narrowband interfering signals are present.This research will demonstrate the feasibility and effectiveness of the proposed architecture for reception and transmission of UWB signals. He will provide a complete design framework based on a clear understanding of various design options and the corresponding trade-offs in performance and implementation complexity. Furthermore, he will demonstrate the feasibility and the advantages of the proposed architecture by realizing it on silicon. The goal is to design a high-performance single-chip UWB radio.Many of the concepts and techniques developed in the proposed research are not limited to UWB systems. They can be generalized to other high-bandwidth communication systems, such as high-speed satellite and wireline communication systems. A specific application that he plans to pursue in this project based on the techniques developed for the UWB radio is multimodal radios, which are radios that support multiple communication standards.The above research plan is coupled with an education plan that describes the PI's educational motivation and strategy at all levels of teaching. It includes specific plans to teach students how to learn, introduce a new class on communication transceiver design, instill high-quality oral and written skills, train research students with broad technical backgrounds, assist with university-sponsored outreach programs aimed at helping the neighboring area, and pursue applied research that is guided by the needs of our society.

0134629 Namgoongultra Wideband（UWB）无线电系统正在成为高带宽数字无线通信的关键技术之一。部署UWB无线电系统的基本原理在于特殊带宽的好处：遮盖力（非常低的功率密度信号），非常准确的范围（降至几厘米），良好的材料渗透（低频）和高度性能的高性能多persutions （由于时间分辨率良好）。UWB支持者中普遍关注的是，由于所需的带宽，动态范围和时钟速度非常高，因此可能无法实现集成的高性能无线电。这种关注似乎导致了两种替代发展路径。首先，将UWB无线电系统缩减为以大量降低的带宽操作，从而损害了UWB系统的许多好处。在另一个提议中，尽管以更高的成本和功耗为代价，但采用了多种离散组件的高级流程技术。在这项提案中，PI使用当今的低调，提出了一种实现综合高性能UWB广播的有希望的方法标准CMOS技术而不会损害信号带宽。为了满足目前远非实用的高性能UWB无线电的设计要求，他提出了将传入信号引导到频率子带中的架构，然后并行处理。通过引导传入信号，模拟前端和数字后端中的电路需求都非常放松，尤其是在存在大型窄带干扰信号时。这项研究将证明所提出的接收和传播的构建的可行性和有效性UWB信号。他将基于对各种设计选项以及性能和实施复杂性方面的相应权衡的清晰理解提供完整的设计框架。此外，他将通过在硅上意识到拟议的建筑的可行性和优势。目的是设计高性能的单芯片UWB广播。拟议研究中开发的概念和技术不限于UWB系统。它们可以推广到其他高带宽通信系统，例如高速卫星和有线通信系统。他计划根据UWB广播开发的技术在该项目中追求的特定应用程序是多模式无线电，它是支持多个通信标准的无线电。各级教学的策略。它包括教学学生如何学习，介绍有关通信收发器设计的新课程，灌输高质量的口头和书面技能，具有广泛技术背景的研究学生，协助大学赞助的外展计划，旨在帮助邻近地区的研究学生，并进行以我们社会需求为指导的应用研究。