Positioning, navigation, and timing are key to ensuring the location accuracy critical to the success of modern military missions. Today’s military systems typically rely on the Global Positioning Systems (GPS) to ensure their position accuracy. While GPS provides sub-meter accuracy in optimal conditions, the signal is often lost or degraded due to natural interference or malicious jamming.
In a recent development, The Defense Advanced Research Projects Agency (DARPA) has awarded HRL Laboratories, a $4.3 million contract to develop vibration - and shock-tolerant inertial sensor technology that enables future system accuracy needs without utilizing GPS.
According to Dr. Logan Sorenson of HRL’s Sensors and Materials Laboratory, this ATLAS project will deliver a comprehensive approach to breaking performance and cost, size, weight, and power barriers in inertial sensor technology that prevent robust, GPS-independent, military positioning, navigation, and guidance.
ATLAS will combine intimate locking of a Micro-Electro-Mechanical Systems (MEMS) Coriolis Vibratory Gyroscope (CVG) sensor with an atomically-stable frequency reference in order to exploit the intrinsic accuracy of the atomic hyperfine transition frequency. The engineering challenge lies in developing a system architecture to transfer the stability from the atomic reference to the CVG sensor without introducing unintended noise.
