Model-Based Security Compliance-By-Design for Low-Earth Orbit Satellite Operations Segments

Low-earth orbit (LEO) satellite constellations require high levels of security and resilience to provide high quality, reliable and trustworthy global connectivity services to customers. For these systems to develop customer trust and find widespread use, developers must demonstrate compliance to a variety of security standards, policies, and regulations. However, because these systems are very large and complex, it is difficult to clearly and effectively show how the system satisfies all of its compliance requirements throughout its development lifetime.

Next Generation Canadian Satellite-based Positioning Technology

Present navigation applications rely mostly on the integration of Global Navigation Satellite Systems (GNSS) and Inertial Navigation Systems (INS). However, GNSS signals are prone to interruption due to various disturbances, including signal interference and jamming. On the other hand, Low Earth Orbit (LEO) satellite constellations from several providers are becoming rapidly accessible. LEO-based communication systems offer much stronger signals with higher satellite availability than GNSS.