Hemisphere unveils GNSS receiver technology

Based on Hemisphere GPS firmware and ASIC designs, Eclipse II provides improved RTK performance, GPS, GLONASS, SBAS and Omnistar support and reduced power consumption.

Hemisphere GPS digital and analogue ASIC designs optimise performance and provide the ability to track and process a range of GNSS signals including current and modernised GPS, GLONASS, SBAS and the future Galileo and Compass system signals.

The ASICs offer flexibility in GNSS board design by reducing the number of board components required, therefore reducing complexity and improving reliability.

The ASIC can process five separate GNSS frequencies and up to 90 separate satellite signals at one time.

Multiple copies of the digital and analogue ASICs are being combined into Eclipse II GNSS receivers.

Eclipse II is said to improve GNSS performance, particularly with RTK and GLONASS applications, through Hemisphere GPS's Suretrack technology.

Benefits include extended and more robust RTK solutions as the rover RTK receiver will process all available signals even if they are not common with the base receiver.

RTK solutions are therefore better maintained in challenging environments, baselines of up to 50km are possible, and reacquisition times are improved, resulting in more robust overall performance.

In particular, according to Hemisphere GPS, GLONASS performance is enhanced through Suretrack as GLONASS receiver bias issues are avoided and GLONASS signals aid the positioning solutions even with GPS-only base stations.

The Eclipse II receiver technology is currently available as the P320 OEM board and evaluation kit.

Hemisphere GPS is integrating Eclipse II technology into other form factors and into many of its existing GPS receiver products, which will be introduced in the coming months.