LTE STEERS UAV

Navigation systems onboard today's vehicles mainly rely on integrating global navigation satellite system (GNSS) receivers with an inertial navigation system (INS). As vehicles approach full autonomy, requirements on the accuracy and resiliency of the vehicles navigation system become ever more stringent. Besides the known limitations of GNSS indoors and in deep urban canyons, recent cyber attacks on GNSS signals (jamming and spoofing) are exposing an alarming vulnerability, necessitating alternative and complementary navigation systems when GNSS signals become unavailable or untrustworthy. When GNSS signals become unavailable, the errors of the INSs navigation solution diverge, and the divergence rate is dependent on the quality of the inertial measurement unit (IMU). Such diverging errors compromise the required safe and efficient operation of autonomous vehicles (AVs).