Schaltungstheoretische Methoden in der Kommunikationstheorie

通信理论中的电路理论方法

基本信息

批准号：
230297658
负责人：
Professor Dr. Josef A. Nossek
金额：
--
依托单位：
Lehrstuhl für Netzwerktheorie und Signalverarbeitung (NWS) (aufgelöst)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2012
资助国家：
德国
起止时间：
2011-12-31 至 2015-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/230297658?language=en
关键词：
Schaltungstheoretische Methoden der Kommunikationstheorie

项目摘要

In this research project, the theoretical limits of multi-antenna communications which are imposed by physical law are investigated and solutions for optimum design within those limits are developed. Multiport theory provides a platform for the physically consistent derivation of various figures of merit of multi antenna communication systems. Yet the results obtained up till now using this theory are mostly based on rather idealistic assumptions – such as absence of heat loss –, not including important aspects – like the trade-off between bandwidth and other performance measures –, and rely on physical models which ignore important parts of engineering reality – such as the need for antenna support structures and other complicated obstacles within the vicinity of the antennas such as a human body. A part of this research project is therefore focused on overcoming issues due to over-idealization, and, thus, to arrive at sound models for which theoretical predictions are in good agreement with reality and from which the system parameters for optimum performance can be obtained from the theory. In this research project, the channel, as seen in the information theory and signal processing layer of abstraction, is not apriori given, but rather forms part of the design. In our approach, antennas, their arrangement in space, impedance matching networks, and lownoise amplifiers form part of the channel. By jointly designing these elements, the resulting information theoretic and signal processing channel with respect to some figure of merit, such as channel capacity will be analyzed and optimized. We also hope to gain deep insight into the physical limits of communications, especially their influence on the performance of matching networks.

在该研究项目中，研究了由物理定律施加的多 - 安特纳沟通的理论限制，并开发了这些限制内最佳设计的解决方案。多层理论提供了一个平台，可以在物理上一致地推导多种多样的多数式通信系统。然而，到目前为止，使用该理论获得的结果主要是基于相当理想的假设（例如没有热量损失（不包括重要方面），例如带宽和其他绩效指标之间的权衡，并依赖于忽略工程现实的物理模型，例如对天线支撑结构的需求和其他复杂的障碍，例如人类的人类体内的障碍。因此，该研究项目的一部分集中在克服过度考虑的问题上，因此，要达到理论预测与现实相吻合的合理模型，从这个研究项目中，该渠道（在抽象的信息理论和信号处理层中都可以看到，这不是Apriori，而是所给出的，而是构成了设计的一部分。在我们的方法中，天线，它们在太空中的布置，阻抗匹配的网络以及Lownoise放大器构成了频道的一部分。通过共同设计这些元素，将分析和优化所得的信息理论和信号处理通道，例如通道容量。我们还希望深入了解沟通的物理极限，尤其是它们对匹配网络性能的影响。