Airborne Mapping Consulting  

Frontier Geomatics Inc. is a full-service NovAtel SPAN representative for airborne mapping. SPAN is a positioning and attitude measurement system consisting of a GPS receiver and an inertial measurement unit (IMU).

Unlike other technologies SPAN’s principle is very straight-forward: you connect an IMU to a ProPak-V3 GPS receiver and log its raw data via USB port. All real-time position and attitude is simultaneously accessible and monitored through the receiver’s COM ports.

A GPS/IMU system does not have to be exclusive for scientists any more and is simple to operate. After all, it is just an aiding sub-system for your overall mapping projects.

Several IMUs are available:

HG1700

The Honeywell HG1700 is available in a 1 deg/h and 5 deg/h model. Both have a 100Hz update rate and because of their low price are most suitable for small and medium-format digital photogrammetry.

Download SPAN with HG1700-58 brochure

Download SPAN with HG1700-62 brochure

LN200

The Litton LN200 is a high-performance 200Hz inertial measurement unit and ideally suited for direct stereo-mapping either from high-altitude or for large scale maps. Its applications also include high-altitude LiDAR and photogrammetry with large-format cameras, either digital or film.

Download SPAN with LN200 brochure

Download Aerial Photogrammetry Test with SPAN & LN200

Both, the HG1700 and LN200, fall under the US State Department Export Regulations.

FSAS

The iMAR FSAS manufactured in Germany requires only an End-Use Statement for the transfer to most countries. In Canada, for example, it is not even covered under the Controlled Goods Program.

The FSAS has fiber-optic gyros and an update rate of 200Hz. Its MTBF of 35,000 hours is outstanding. We recommend it for low to medium altitude Lidar applications, stereo-photogrammetry with additional AT and orthophoto generation.

Download SPAN with FSAS brochure

Inertial Explorer  

Recorded IMU and GPS data can be post-processed for increased accuracy. It has a single user interface for GPS and IMU data processing. Inertial Explorer is an extension of the popular GrafNav software and includes RTS Smoother for tightly-coupled forward, reverse and combined processing. Besides many error models for popular IMUs the user can introduce his/her own IMU error model as well. GPS/IMU data quality-control is done through a familiar Combined Separation plot comparing the forward and reverse processing solutions. For a more scientific investigation gyro and accelerometer error plots can be inspected.

Download Inertial Explorer brochure

Inertial Explorer

 

 
 
  Data Processing  
 
  TopoSys Lidar  
 
  TerraPOS PPP  
 
   
   

Frontier Geomatics Inc not only resells and supports NovAtel SPAN systems, but will also be on-site for the installation, integration with other sensors and operational staff training. With our many years experience we assist you in adapting GPS/IMU technology for your application, no matter what airborne sensor you have and what environment you use it in.

Boresighting the IMU to the sensor is critically important and we will guide you to set-up the calibration site and have an efficient work-flow for this task. Location and number of ground control points as well as flight strip pattern depends on senor configuration and specific mapping application. On-site we assure that this boresight measurement will be tailored to your needs.