SII-NRDZ: Radio Astronomy Dynamic Satellite Inteference-Mitigation and Spectrum Sharing (RADYSISS)

RADYSIS项目的原型是在限定的地理区域内动态共享电磁(射频)频谱的自动化系统。该系统力求改善地面射电天文设施和低地球轨道观测被动传感卫星的频谱使用情况。在定义的区域内，RADYSIS频谱共享系统根据其他用户的当前状态(如他们的位置和工作频率)，以防止和缓解干扰的方式动态地批准频谱访问请求。频谱共享系统的目标包括使射电天文学家能够在为被动传感保留的频段之外进行观测，并保护对地观测卫星免受地面无线通信系统增加的干扰。通过帮助保护被动用户，该项目支持从天文台投资中获得更好的科学回报。通过推进无源和有源系统之间安全、动态的频谱共享目标，该项目支持了无线使用持续增长带来的社会和经济效益。通过作为国家无线电动态区概念的探路者，该项目提供了可用于加强其他站点和应用的频谱共享的经验教训。RADYSIS频谱共享系统是谷歌公民宽带无线电服务(CBRS)频谱接入系统(SAS)的增强。Google CBRS SAS是一个操作系统，目前支持3550至3700 MHz频段的全国频谱共享。这组调查人员将增强谷歌CBRS SAS，通过整合卫星数据库和实时地理空间频谱共享能力来增加对地球观测卫星的保护。该项目通过以下机制增强了对射电天文学的保护：与Hat Creek射电观测站(HCRO)每日运行规划系统的接口；向采用基于国防信息服务局TARDyS3规范的新标准的其他用户发布射电天文观测计划；根据频谱用户和传感器网络的报告快速识别干扰事件；以及使用与联邦和非联邦系统交互的新的自动协商服务快速缓解干扰。HCRO的现场测试将通过涉及艾伦望远镜阵列的测试来探索射电天文学的频谱共享系统原型的行为和好处。现场测试将通过以下方法之一探索对地观测卫星的行为和益处：与旨在探测5G/6G传输的拟议的LEO极轨立方体卫星合作；与美国国家海洋和大气管理局运营的微波卫星合作；或通过在高空飞机或气象气球上安装微波探测仪。该奖项反映了NSF的法定任务，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

The RADYSIS project prototypes an automated system for dynamically sharing the electromagnetic (radio-frequency) spectrum in defined geographic zones. The system seeks to improve spectrum access for ground-based radio astronomy facilities and for low-earth-orbit-observing passive-sensing satellites. Within a defined zone, the RADYSIS spectrum sharing system dynamically grants spectrum access requests based on the current state of other users, such as their location and operating frequency, in ways that prevent and mitigate interference. Goals of the spectrum sharing system include enabling radio astronomers to make observations outside the bands reserved for passive sensing and protecting earth-observing satellites from increasing interference by terrestrial wireless communications systems. By helping protect passive users, the project supports better scientific return from observatory investments. By advancing the goal of secure, dynamic spectrum sharing between passive and active systems, the project supports the social and economic benefits that come from continued growth in wireless usage. By serving as a pathfinder for the National Radio Dynamic Zone concept, the project delivers lessons learned that can be used to enhance spectrum sharing for other sites and applications. The RADYSIS spectrum sharing system is an enhancement to the Google Citizens Broadband Radio Service (CBRS) Spectrum Access System (SAS). The Google CBRS SAS is an operational system currently supporting nationwide spectrum sharing in the 3550 to 3700 MHz band. This team of investigators will enhance the Google CBRS SAS to add protection for earth observation satellites by incorporating a satellite database and a real-time geospatial spectrum sharing capability. The project adds protection for radio astronomy by enhancing the SAS with mechanisms to: interface to the Hat Creek Radio Observatory (HCRO) daily operational planning system; publish radio astronomy observation plans to other users employing a new standard based on the Defense Information Services Agency TARDyS3 specification; rapidly identify interference incidents based on reports from spectrum users and sensor networks; and rapidly mitigate interference using a new automated negotiation service that interacts with federal and non-federal systems. Field tests at HCRO will explore behavior and benefits of the prototype spectrum sharing system for radio astronomy through tests involving the Allen Telescope Array. The field tests will explore behavior and benefits for earth-observing satellites through one of the following methods: collaboration with proposed LEO polar-orbiting cubesats designed to detect 5G/6G transmissions; collaboration with microwave satellites operated by the National Oceanic and Atmospheric Administration; or by deploying microwave sounders on high-altitude aircraft or weather balloons.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.