EARS: Collaborative Research: Let's share CommRad -- spectrum sharing between communications and radar systems

2012年提交给总统的题为“充分发挥政府持有频谱的潜力以刺激经济增长”的报告建议释放部分大型政府雷达波段，与商业无线服务共享。该提案确定了雷达和通信系统之间可行的共享机制，这些机制传统上在不重叠的频带上操作，并且被设计为实现非常不同的目标，以便它们可以以对两者危害最小或理想地有益的方式共存。本研究首先研究了未改变的雷达和通信系统将对彼此产生的影响，然后提出了一系列共存的解决方案，从传统系统的现实解决方案（其中一个雷达或通信系统保持不变）到新颖的变革性联合设计。经过验证的强大和最佳共享机制的可用性将为新无线服务的开发铺平道路，同时保持雷达系统在全球网络化社会中发挥的关键作用。一个多学科团队，在雷达和统计信号处理，认知无线电和频谱共享，通信和信息理论，电磁学和传播方面具有专业知识，已经组建，以解决以下问题：1）理解重叠频带对当前未改变的雷达和通信系统的影响并对其进行建模; 2）以雷达为中心的方法，其中自适应雷达处理是减少来自通信系统的干扰的关键; 3）以通信网络为中心的方法，其中使用编码来提高对雷达干扰的弹性; 4）通信与雷达系统的联合设计，其中通信数据速率与估计速率之间的权衡的信息论理解是这种协同设计的基础; 5）利用真实的实验数据对模型和算法进行了验证。这项研究的结果将及时在主要的国家和国际专业场所展示;公众将通过现代社交媒体，如本科生运行的实验视频，展示开发的技术及其实际影响。所开发的基本框架将为雷达和通信系统之间的频谱共享奠定坚实的基础;所开发的技术预计将对雷达和通信私营和公共部门都具有直接和深远的用途。参与这项研究的学生将接受雷达和通信科学方面的尖端教育和培训，获得在当前竞争激烈，多样化和全球劳动力市场中取得成功的基本技能。

The 2012 report to the President entitled "Realizing the Full Potential of Government-Held Spectrum to Spur Economic Growth" recommends releasing portions of the large governmental radar bands to be shared with commercial wireless services. This proposal identifies viable sharing mechanisms between radar and communication systems, which traditionally are operated on non-overlapping bands and are engineered to attain very different goals, so that they may co-exist in a way that is minimally harmful, or ideally beneficial, to both. This research first examines the impact unaltered radar and communication systems would have on one another and thereafter proposes a series of solutions for co-existence that range from realistic solutions with respect to legacy systems (where one of the radar or communication systems remains unaltered) to novel transformative joint designs. The availability of proven robust and optimal sharing mechanisms will pave the way to the development of new wireless services while preserving the critical roles radar systems play in the globally networked society.A multidisciplinary team with expertise in radar and statistical signal processing, cognitive radio and spectrum sharing, communication and information theory, and electromagnetics and propagation, has been assembled to address the following thrusts: 1) understand and model the impact of overlapping frequency bands on current, unaltered radar and communication systems; 2) a radar centric approach, where adaptive radar processing is the key to reduce interference from communication systems; 3) a communication network centric approach, where coding is used to improve resilience to radar interference; 4) the joint design of communication and radar systems, where the information-theoretic understanding of the tradeoffs between communication data rates and estimation rates is at the base of this cooperative design; 5) validation of the models and proposed algorithms by using real experimental data. The results of this research will be timely presented at major national and international professional venues; the general public will be reached by means of modern social media, such as videos of undergraduate-run experiments that demonstrate the developed technology and its practical impact. The developed fundamental framework will form a solid foundation for spectrum sharing between radar and communication systems; the developed technology is expected to be of immediate and far-reaching use for both radar and communication private and public sectors alike. Students involved in this research will receive a cutting edge education and training in radar and communication sciences, acquiring fundamental skills to be successful in the current competitive, diverse, and global workforce market.