Hemisphere GNSS’ Crescent single-frequency, multi-GNSS positioning technology is the long-established benchmark for performance, versatility, and value. Hemisphere offers a variety of accuracy and feature options; including Differential GNSS (DGNSS), SBAS accuracies of 30 cm, centimeter-level RTK, and our scalable Atlas® GNSS global correction service.

Our Crescent GNSS technology allows single-frequency receivers to deliver higher update rates and noise-reduced raw measurements to enable more advanced applications and sophisticated configurations.

Crescent technology uses GNSS signal data from both carrier phase and code phase signals. Its multipath mitigation architecture significantly reduces multipath errors. Through correction options such as DGNSS, SBAS, RTK, and Atlas, Crescent-based products can be scaled in accuracy from a sub-meter factory positioning to centimeter-level, post-processing accuracy.

Crescent technology computes 20 independent solutions per second, providing control loops with more immediate information, which ultimately improves stability. This is ideal for fast and smooth navigation, guidance, and high-dynamics applications. Users can select output rates from lower than 1 Hz to as high as 20 Hz, allowing them to tailor the output to their application requirements.

Hemisphere’s Eclipse multi-frequency, multi-GNSS positioning and heading technology delivers the highest level of performance and versatility with GPS, GLONASS, BeiDou, Galileo, IRNSS, and QZSS support. Paralleling Crescent technology, Eclipse delivers reliable centimeter-level accuracy.

The superior performance and versatility of Eclipse-based boards allow OEM (original equipment manufacturer) customers to integrate the technology into a wide variety of precise applications. Depending on the application, Eclipse users can record and post-process GNSS data or choose from several differential solutions including RTK, Atlas GNSS global correction service (L-band), and SBAS (WAAS, EGNOS, etc.).

As an affordable multi-frequency solution, Eclipse receiver technology offers several other advantages to OEM integrators including pin-compatible versions for Crescent and other common industry-standard boards, multiple serial and USB ports, and no-cost firmware upgrades.

Hemisphere’s Vector GNSS sensor technology and all-in-one compass solutions provide precise heading and positioning for marine users (including IMO (International Maritime Organization)-wheelmarked applications, hydrographic surveying, and other general marine navigation applications) and for the machine control market, including agriculture, heavy construction equipment, and any other industries where very accurate headings are critical.

The rugged and reliable design of these compasses make them ideal solutions to replace traditional gyrocompasses, at a fraction of the cost. Combining Hemisphere’s single and multi-frequency technologies and multipath-resistant antennas, the Vector compasses and sensor technology bring a collection of robust features including heave, pitch, and roll output as well as NMEA 0183 and NMEA 2000 support.

Hemisphere’s Vector technology computes the heave, pitch, or roll angle while stationary or in motion allowing for heading accuracy of up to 0.01 degree depending upon the product selected. A variety of differential correction methods also make it possible for Vector products to provide sub-meter to centimeter-level RTK position accuracy.

The Lyra II digital ASIC incorporates a scalable design architecture to provide users with the most flexible and scalable GNSS positioning platform in the industry. Lyra II also delivers access to all the modern GNSS signals with very low power consumption making it an ideal option for integration into various mobile and unmanned applications. Its dedicated acquisition engine searches multi-hypothesis in parallel for better Time-To-First-Fix (TTFF) in cold-start and signal-degraded environments.

Hemisphere’s new Aquila wideband RF ASIC can receive multiple frequency bands and use integrated software to best handle incoming signals. Using flexibility to support different bandwidths, Hemisphere is positioned on the cutting-edge of signal acquisition to easily integrate new and future signals from each constellation.

The all-new Cygnus interference mitigation technology incorporates the latest digital filtering technology and an integrated Fast Fourier Transforms (FFT) analyzer for real-time spectrum analysis and interference detection. The Cygnus architecture deploys precisely targeted technology in-band filtering measures with minimal impact or disruption to available GNSS constellation signals resulting in higher satellite availability in environments where band interference is present. Cygnus also uses high-resolution Analog to Digital Converters (ADC) for superior anti-jamming performance.