Hemisphere GNSS’ Atlas product. Photo: Hemisphere GNSS.

Hemisphere GNSS announced a series of major enhancements to its Atlas GNSS Global Correction Service, including Atlas Basic, Atlas AutoSeed, and the addition of global ionospheric modeling to the system. Atlas is a GNSS-based global L-band correction service that provides performance and correction data for GPS, GLONASS, and BeiDou. Delivering its correction signals via L-band satellites at accuracies ranging from meter to sub-decimeter levels, Atlas also leverages approximately 200 reference stations worldwide, providing coverage to virtually the entire globe.

Hemisphere is now offering Atlas Basic, which provides users of both single- and multi-frequency Atlas-capable hardware the ability to achieve Satellite-Based Augmentation System (SBAS)-equivalent performance anywhere in the world where the Atlas correction service is available. According to Hemisphere, Atlas Basic is a new feature that offers a proven accuracy of 30 cm (pass-to-pass 95 percent) to 50 cm (absolute 95 percent) and offers instantaneous sub-meter accuracy allowing for Differential GPS-level accuracy.

Also included in the enhanced Atlas system is the addition of global ionospheric modeling. Using real-time ionospheric data, Atlas adjusts its corrections accordingly, providing instantaneous convergence for sub-meter accuracy.

Atlas is available on all Hemisphere single- and multi-frequency multi-GNSS hardware, and complements third-party GNSS receivers by allowing them to use Atlas corrections with Hemisphere’s SmartLink and BaseLink capabilities. When using multi-frequency hardware, Atlas corrects more satellites than before to create faster convergence times, and can also be used in canopy or foliage covered areas.