MRI: Development of measurement and testing equipment for distributed wireless communications and localization systems and propagation channels

MRI：开发分布式无线通信和定位系统以及传播通道的测量和测试设备

• 批准号: 1126732
• 负责人: Andreas Molisch
• 金额: $ 50万
• 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: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1126732&HistoricalAwards=false
• 关键词: MRI; Development; measurement; testing; equipment

Research Objectives and Approaches:The objective of this research is the development of measurement instrumentation that will enable (i) measurement of distributed wireless propagation channels with ultra-wide bandwidth and (ii) design, measurement and validation of distributed wireless systems for communications, localization, and radar. The instrumentation is thus intended to explore both the fundamental principles of distributed wireless propagation channels and systems, as well as to enable the development and testing of practical distributed wireless systems that go far beyond current systems. The approach is based on a combination of state-of-the array channel sounding with electro-optical signal conversion. By converting wideband microwave signals to optical signals, which are transmitted via optical fibers, widely separated antennas can be operated by a single high-precision signal source/receiver in a synchronized manner. Intellectual Merit:Firstly, the development activity will push the frontiers of electro-optical modulation. Secondly, the instrument enables many measurements that will for the first time answer some of the fundamental questions related to wireless propagation in distributed systems, such as the correlation of shadowing, delay spread, and angular spread at widely separated transmitters/receivers. Further intellectual merit is obtained from the use of these measurement results to stimulate and test novel theoretical ideas. Broader impact:Measurements with the developed instrumentation will help to enable novel applications of distributed wireless systems (many of which are ?Grand Challenges? defined by the National Academy), such as wireless health and remote monitoring of vital signs, distributed localization for emergency responders, high-efficiency video distribution systems, and many more.

研究目标和方法：本研究的目标是测量仪器的发展，这将使（一）分布式无线传播信道的测量与超宽带宽和（ii）设计，测量和验证分布式无线系统的通信，定位和雷达。因此，仪器的目的是探索分布式无线传播信道和系统的基本原理，以及使实际的分布式无线系统，远远超出当前的系统的开发和测试。该方法是基于状态的阵列通道探测与电光信号转换的组合。通过将宽带微波信号转换为经由光纤传输的光信号，可以由单个高精度信号源/接收器以同步方式操作相距甚远的天线。智力优势：首先，开发活动将推动电光调制的前沿。其次，该仪器能够进行许多测量，这些测量将首次回答与分布式系统中的无线传播相关的一些基本问题，例如在相距甚远的发射器/接收器处的阴影、延迟扩展和角扩展的相关性。从使用这些测量结果来激发和测试新的理论思想中获得了进一步的智力价值。更广泛的影响：使用开发的仪器进行测量将有助于实现分布式无线系统的新应用（其中许多是？大挑战？由美国国家科学院定义），如无线健康和生命体征的远程监控，紧急响应者的分布式定位，高效视频分配系统等等。