The Boreas D70, a fiber-optic gyroscope (FOG) inertial navigation system (INS) from Advanced Navigation, is designed to open up new application possibilities for FOG INS.
The latest release in the company’s Boreas digital FOG (DFOG) series, the solution can be used for surveying, mapping and navigation across subsea, marine, land and air applications, according to a news release. It combines closed-loop DFOG and accelerometer technologies with a dual antenna RTK GNSS receiver and leverages the company’s AI based fusion algorithm for precise navigation.
The system features ultra-fast gyro compassing, with the ability to acquire and maintain an accurate heading under demanding conditions. It offers 0.01° roll and pitch; 0.1° secant latitude heading (gyrocompass); 0.01°/hour bias instability and 10 mm position accuracy. Other features include Ethernet, CAN and NMEA protocols, disciplined timing via a PTP server and 1PPS. An embedded web interface provides access to all internal functions and data.
DFOG is a patented technology that has been in development for more than 25 years. It was created to make FOGs smaller and more cost-effective, while also increasing reliability and accuracy. DFOG represents the third generation of FOG and is completely digital, allowing it to provide “higher performance and reliability while enabling a 40% reduction in size, weight, power and cost (SWaP-C),” according to the release.
All Boreas DFOG solutions have ultra-fast gyro compassing and can acquire heading, either stationary or dynamically, in less than 2 minutes. The gyro compassing determines accurate heading without magnetic heading or GNSS. The company’s AI sensor fusion algorithm makes this possible, allowing the system to extract more information from the data.
“It’s a system that will provide additional flexibility in the Boreas family, making ultra-high accuracy inertial navigation far more affordable than previous FOG INS systems,” Advanced Navigation CEO and co-founder Xavier Orr said of the D70, according to the release. “This patented technology opens the possibility for adopting FOG INS systems across a much broader range of vehicular applications, particularly autonomous vehicles and aircraft, where weight and size are at a premium.”