Geo-hNAV Dual GPS + INS Navigation System

Geo-hNAV™ is a ruggedized, fully-integrated hybrid dual-GPS-aided inertial navigation system which delivers consistent position and attitude measurement accuracy whether the platform is static or moving.

For stationary or slowly moving platforms, precise heading is derived from GPS measurements using two GPS antennas rigidly mounted on the platform, separated by a typical distance of 1 to 3 meters.  In dynamic conditions, the combination of GPS and IMU provides enhanced position, velocity and attitude measurements. 

Details

Flexibility

  • Provides consistent level of measurement accuracy in static and in dynamic conditions

  • Multiple IMU configurations available with internal MEMS or external FOG/RLG IMUs

  • Multiple GPS configurations available with both civilian and SAASM receivers

High Navigation Performances

  • Centimeter level positioning with dual frequency RTK configuration

  • 0.05° heading measurement accuracy both in low and high dynamic conditions (dependent on GPS baseline separation)

  • High navigation output rate (up to 125 Hz)

Applications

Geo-hNAV is offered in several configurations designed to meet a wide range of navigation application requirements. Configurations are available for both commercial and military applications.

  • Geo-pointing for onboard sensors for low dynamic platforms such as aerostats, boats, tanks

  • Camera, EO/IR sensor stabilization

  • Antenna pointing

  • Weaponry pointing

  • Vehicle testing in static and mobile conditions

  • Hoovering UAS platforms

Geo-hNAV configurations can be customized to satisfy the most demanding inertial navigation accuracy and performance requirements.

Configurations

Geo-hNAV is offered in 2 configurations (tactical-RTK, and advanced) for both commercial GPS and military SAASM GPS. These configurations combine various GPS processing techniques with various grades of IMUs as shown in the table below. Geo-hNAV configurations can be customized to satisfy the most demanding inertial navigation accuracy and performance requirements.

Non ITAR Configurations GPS Receiver IMU
Tactical-RTK L1/L2 RTK enabled Internal Quartz MEMS M-G352 or M-G362
Advanced L1/L2 RTK enabled External FOG KVH1750 (other IMU on request)

ITAR Configurations

GPS Receiver

IMU
Tactical-RTK SAASM L1/L2 SAASM RTK enabled Internal Quartz MEMS M-G352 or M-G362
Advanced SAASM L1/L2 SAASM RTK enabled External FOG KVH1750 (other IMU on request)

Resources

Datasheets

More Info
A dual GPS and INS module for low dynamic vehicles.
pdf - 229 KB
By: Spectracom

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