Global Navigation Satellite Systems (GNSS) brought navigation to the masses. Coupled with smartphones, the blue dot in the palm of our hands has forever changed the way we interact with the world. Looking forward, cyber-physical systems such as self-driving cars and aerial mobility are pushing the limits of what localization technologies including GNSS can provide. This autonomous revolution requires a solution that supports safety-critical operation, centimeter positioning, and cyber-security for millions of users. To meet these demands, we propose a navigation service from Low Earth Orbiting (LEO) satellites which deliver precision in-part through faster motion, higher power signals for added robustness to interference, constellation autonomous integrity monitoring for integrity, and encryption / authentication for resistance to spoofing attacks. This paradigm is enabled by the 'New Space' movement, where highly capable satellites and components are now built on assembly lines and launch costs have decreased by more than tenfold. Such a ubiquitous positioning service enables a consistent and secure standard where trustworthy information can be validated and shared, extending the electronic horizon from sensor line of sight to an entire city. This enables the situational awareness needed for true safe operation to support autonomy at scale.

中文翻译：

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自主时代的卫星导航

全球导航卫星系统 (GNSS) 为大众带来了导航。再加上智能手机，我们手掌中的蓝点永远改变了我们与世界互动的方式。展望未来，自动驾驶汽车和空中机动性等网络物理系统正在突破包括 GNSS 在内的本地化技术所能提供的极限。这场自主革命需要一个支持数百万用户的安全关键操作、厘米定位和网络安全的解决方案。为了满足这些需求，我们提出了一种来自低地球轨道 (LEO) 卫星的导航服务，该服务通过更快的运动、更高功率的信号以增加对干扰的鲁棒性、星座自主完整性监测的完整性来提供部分精度，和加密/身份验证以抵抗欺骗攻击。这种范式是由“新空间”运动实现的，现在在装配线上建造高性能卫星和组件，发射成本降低了十倍以上。这种无处不在的定位服务可实现一致且安全的标准，其中可以验证和共享可信赖的信息，将电子地平线从传感器视线扩展到整个城市。这使得真正安全操作所需的态势感知能够支持大规模自主。这种无处不在的定位服务可实现一致且安全的标准，其中可以验证和共享可信赖的信息，将电子地平线从传感器视线扩展到整个城市。这使得真正安全操作所需的态势感知能够支持大规模自主。这种无处不在的定位服务可实现一致且安全的标准，其中可以验证和共享可信赖的信息，将电子地平线从传感器视线扩展到整个城市。这使得真正安全操作所需的态势感知能够支持大规模自主。