Two Antennas for More Accuracy
The module, a printed circuit board, is a complete GPS compass and positioning system designed primarily for the Marine market but very applicable to other markets including Agriculture and Machine Control. It computes heading and positioning using two antennas for enhanced precision.
The module features Hemisphere’s exclusive Crescent-branded application-specific integrated circuit (ASIC) computer chipset technology that enables it, in comparison with competing products, to achieve:
- higher update rates
- noise-reduced raw measurements
- more memory
- more processor capacity
- lower power consumption
- more advanced applications and sophisticated configurations.
Crescent technology enables the Crescent Vector OEM Board to simultaneously employ multiple front-ends – enabling tighter coupling of measurements from separate antennae for use with heading-based products. Users will achieve excellent accuracy and stability, due to Crescent’s more accurate code phase measurements, improved multipath mitigation, and fewer components.
The OEM module offers maximum flexibility to OEMs and integrators by enabling them to choose their appropriate power supply and communications translation.
The module also offers a single-axis gyro and a tilt sensor in a small form factor. It delivers heading accuracy ranging from 0.1 degrees (rms) at 2.0-meter antenna separation to 0.25 degrees (rms) at 0.5-meter antenna separation. It provides heading and positioning updates of up to 20 Hz, and delivers positioning accuracy of 20 cm 95% of the time when using Crescent’s base station GPS, and 50 cm 95% of the time when using Differential GPS.
The module also features Hemisphere’s exclusive COAST™ software that enables Hemisphere receivers to utilize old Differential GPS correction data for 40 minutes or more without significantly affecting the quality of positioning. When using COAST, the Vector OEM is less likely to be affected by Differential signal outages due to signal blockages, weak signals or interference
Features & Benefits
- Accuracy of 0.1 – 0.5 degrees (rms) with heading and position updates of up to 20 Hz
- High-precision, differential positioning accuracy of 50 cm, 95% of the time
- COAST™ stability during temporary differential signal outage
- Small form factor and low-power consumption design is ideal for easy integration
- Compatible with other differential sources through RTCM input
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