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Parameter impact on sharing studies between UAS CNPC satellite transmitters and terrestrial systems

机译：参数对UAS CNPC卫星发射器和地面系统之间共享研究的影响

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In order to provide a control and non-payload communication (CNPC) link for civil-use unmanned aircraft systems (UAS) when operating in beyond-line-of-sight (BLOS) conditions, satellite communication links are generally required. The International Civil Aviation Organization (ICAO) has determined that the CNPC link must operate over protected aviation safety spectrum allocations. Although a suitable allocation exists in the 5030-5091 MHz band, no satellites provide operations in this band and none are currently planned. In order to avoid a very lengthy delay in the deployment of UAS in BLOS conditions, it has been proposed to use existing satellites operating in the Fixed Satellite Service (FSS), of which many operate in several spectrum bands. Regulatory actions by the International Telecommunications Union (ITU) are needed to enable such a use on an international basis, and indeed Agenda Item (AI) 1.5 for the 2015 World Radiocommunication Conference (WRC) was established to decide on the enactment of possible regulatory provisions. As part of the preparation for AI 1.5, studies on the sharing FSS bands between existing services and CNPC for UAS are being contributed by NASA and others. These studies evaluate the potential impact of satellite CNPC transmitters operating from UAS on other in-band services, and on the potential impact of other in-band services on satellite CNPC receivers operating on UAS platforms. Such studies are made more complex by the inclusion of what are essentially moving FSS earth stations, compared to typical sharing studies between fixed elements. Hence, the process of determining the appropriate technical parameters for the studies meets with difficulty. In order to enable a sharing study to be completed in a less-than-infinite amount of time, the number of parameters exercised must be greatly limited. Therefore, understanding the impact of various parameter choices is accomplished through selectivity analyses. In the case of sharing stu- ies for AI 1.5, identification of worst-case parameters allows the studies to be focused on worst-case scenarios with assurance that other parameter combinations will yield comparatively better results and therefore do not need to be fully analyzed. In this paper, the results of such sensitivity analyses are presented for the case of sharing between UAS CNPC satellite transmitters and terrestrial receivers using the Fixed Service (FS) operating in the same bands, and the implications of these analyses on sharing study results.
机译：为了提供在远程视线（BLOS）条件中操作的控制和非有效载荷通信（CNPC）链路，通常需要卫星通信链路。国际民航组织（ICAO）确定了CNPC链接必须通过受保护的航空安全谱分配运营。虽然在5030-5091 MHz频段中存在合适的分配，但没有卫星在该频段中提供操作，并且目前没有策划。为了避免在BLOS条件下部署UA的延迟非常冗长的延迟，已经提出使用在固定卫星服务（FSS）中操作的现有卫星，其中许多频谱频带在多个频带中运行。国际电信联盟（ITU）的监管行动需要在国际基础上实现这种用途，并确定2015年世界无线电通信会议（WRC）的议程项目（AI）1.5，以决定颁布可能的监管规定。作为AI 1.5的准备的一部分，对UAS的现有服务与CNPC之间的共享FSS频段的研究是由美国国家航空航天局和其他人提供的。这些研究评估了卫星CNPC发射器在其他带内服务上运行的卫星CNPC发射机的潜在影响，以及在UAS平台上运行的卫星CNPC接收器上的其他带内服务的潜在影响。与固定元件之间的典型共享研究相比，包括将FSS地球站的基本上移动的基本上移动的基本上移动，这些研究是更复杂的。因此，确定研究适当技术参数的过程困难。为了使共享研究能够以低于无限的时间完成，行使的参数数量非常有限。因此，了解各种参数选择的影响是通过选择性分析来实现的。在共享SI 1.5的STU-IES的情况下，识别最坏情况参数允许研究专注于最坏情况的情况，以保证其他参数组合将产生相对较好的结果，因此不需要完全分析。在本文中，呈现了这种灵敏度分析的结果，用于使用在同一频段中操作的固定服务（FS）之间的UA CNPC卫星发射器和地面接收器之间的共享的情况，以及这些分析对共享研究结果的影响。

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