ILS Measurements

Instrument Landing System

ILS Measurements with drones

CANARD’s solution for ILS measurements supports the commissioning, maintenance and calibration activities of localizer and glideslope facilities. By taking over part of the measurements and procedures, the time and cost of the ILS maintenance activities is reduced.

By integrating an ILS signal measurement device in our RPAs, we are able to provide parameters such as DDM, SDM, frequency offsets or field strength. These parameters are geolocated with cm level accuracy thanks to the precise satellite positioning system of our RPAs (centimetre-level accuracy). With this data we can generate reports and graphs with the same measurements that are currently being used by ILS maintenance and inspection technicians, such as:

  • Localizer Course Alignment
  • Glide Slope Angle
  • Localizer & Glide Slope Width
  • Displacement sensitivity
  • Alarms

We pair this hardware solution with our software tools for mission planning, data processing and asset management.  


CANARD provides a reliable and economical tool for reducing the time and cost of regular ILS maintenance and commissioning activities. The drone can reach areas where other methods such as portable and vehicle mounted masts, providing more flexibility and and additional information for the maintenance technicians.

Even the duration of conventional ILS flight inspections can be improved by increasing the automation and intelligence in the maintenance of airport NAVAID systems. This is achieved by taking over part of the procedures that the airplane carries out.

Our RPAs operate both day and night, and align with the airports’ specific maintenance requirements.

Our solution is able to:

  • Decrease management time, and free-up maintenance staff capacity
  • Reduce the cost of maintenance activities
  • Significantly improve maintenance inspections accuracy
  • Comply with inspection timeframes by providing increased flexibility from operating day and night, and availability
  • Obtain ILS measurements in areas of difficult access by ground

Our solution and operational procedures are developed in accordance with to ICAO regulations and in conversations with major airport operators and civil aviation authorities.

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