Data converters for spectrally-efficient broadband communication

用于频谱效率宽带通信的数据转换器

• 批准号: 488910-2015
• 负责人: ChanCarusone, Anthony
• 金额: $ 2.6万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647095
• 关键词: Data; converters; spectrally; efficient; broadband

This project will explore analog/digital data converter integrated circuits in support of new and emerging spectrally-efficient broadband communication technologies, such as over coaxial broadcast TV cables and broadband wireless links. Current solutions rely heavily upon analog electronic signal processing, and therefore require carefully designed and calibrated analog circuitry. Such analog front ends have limited reconfigurability and require significant redesign and R&D expense for each new application or new standard. A heavier reliance upon digital signal processing (DSP) would be more flexible and permit more efficient use of available spectrum. The main challenge limiting the use of highly-digital transceivers for broadband communication is their need for data converters that can digitize wide swaths of communication spectrum with sufficient fidelity. It is widely believed that for many broadband applications, such converters are either impossible to realize or would consume far more power than the analog circuits they seek to replace. This project seeks to demonstrate viable data converters for those applications by reconsidering the assumptions underlying those beliefs. Specifically, digital correction techniques will be tailored to the known signal statistics enabling the use of low-power analog CMOS circuits for data converters processing communication signals at bandwidths exceeding 1GHz. Solutions will be demonstrated in advanced CMOS integrated circuit technologies, culminating in a state-of-the-art prototype data converter with accompanying DSP. The partner and collaborator is Toronto-based Kapik Inc., specialists in the development of mixed analog/digital integrated circuit IP. Their established technical leadership in this area and specific commercial interest in the project outcomes are key assets.

该项目将探索模拟/数字数据转换器集成电路，以支持新的和新兴的频谱宽带通信技术，例如超越同轴广播电视电缆和宽带无线链接。 当前溶液在很大程度上依赖于模拟电子信号处理，因此需要精心设计和校准模拟电路。 这样的模拟前端具有有限的可重构性，并且需要为每个新应用或新标准的重新设计和研发费用。 对数字信号处理（DSP）的严重依赖将更加灵活，并允许更有效地使用可用频谱。 限制使用高数字收发器进行宽带通信的主要挑战是他们需要数据转换器，这些数据转换器可以以足够的忠诚度数字化广泛的通信频谱。 人们普遍认为，对于许多宽带应用，这种转换器要么无法实现，要么比他们寻求更换的模拟电路更能消耗更多的功率。 该项目旨在通过重新考虑这些信念的假设来证明这些应用程序的可行数据转换器。 具体而言，数字校正技术将针对已知的信号统计量量身定制，从而使低功率模拟CMOS电路用于数据转换器，以超过1GHz的带宽处理通信信号。 解决方案将在高级CMOS集成电路技术中进行证明，最终在最先进的原型数据转换器中，并随附DSP。 合作伙伴和合作者是总部位于多伦多的Kapik Inc.，是混合模拟/数字集成电路IP开发的专家。 他们在这一领域既定的技术领导力，并且在项目成果上的特定商业兴趣是关键资产。