Emil

Advanced ICAO-compliant ILS/VOR inspection system

 


 

Download Emil's brochure
General Information

Automated ILS/VOR inspection

Emil is an integrated hardware and software suite for automated ground- and UAS-based inspection of ILS and VOR navigation aids.

The system supports ICAO-compliant inspection campaigns for:

  • ILS localizer,
  • ILS glide slope, and
  • VOR systems, 

within a unified processing, visualization and reporting environment.

Emil software is the operational core of the system, providing:

  • precise GNSS/RTK positioning,
  • automated campaign execution,
  • real-time signal analysis, and
  • post-processing capabilities, 

to support repeatable and operationally efficient navaid inspection campaigns aligned with ICAO Annex 10 Volume I and ICAO Doc 8071 recommendations.

Proven track record of success

Emil is currently deployed in operational at airports and supports ILS/VOR inspection activities for multiple ANSP organizations

Licensing and Prices

For licensing and price conditions, please contact [email protected].

Key Advantages

Ahorro

Cost reduction of ILS/VOR inspections due to the extended intervals between flight inspection campaigns.

Icono UAS

UAS-based solution with demonstrated comparative performance to actual flight inspection.

No errores

Automated and repeatable inspection procedures along different campaigns, which enables preventive maintenance and trend analysis.

Real-time visualization

Real-time visualization and post-processing analysis with automated report generation with ICAO’s tolerances.

More information

Features

Operational efficiency
Design

Emil  has been designed to reduce the duration and operational impact of ILS/VOR inspection campaigns while improving measurement repeatability and traceability.

The system supports preventive and corrective maintenance activities by enabling:

  • repeatable measurements over time,
  • automated campaign execution, and
  • rapid post-processing analysis.

Emil  complements conventional flight inspection activities to support:

  • troubleshooting activities,
  • performance trending, and
  • pre-flight inspection verification.

This capability helps reduce additional flight inspection campaigns and minimizes operational downtime and costs.

Benefits
  • Reduced runway occupancy, minimizing operational disruption.
  • Faster inspection campaigns.
  • Repeatable measurements over time.
  • Reduced dependency on additional flight inspection activities
  • Sub-decimeter GNSS/RTK positioning for accurate geolocation of the measurements (deviation in ILS and bearing in VOR) and computation of reference values.
Emil Software
Main capabilities
  • Reduced runway occupancy, minimizing operational disruption.
  • Faster inspection campaigns.
  • Repeatable measurements over time.
  • Reduced dependency on additional flight inspection activities
  • Sub-decimeter GNSS/RTK positioning for accurate geolocation of the measurements (deviation in ILS and bearing in VOR) and computation of reference values.
One-Man Operation

Emil  has been specifically designed to support “One-Man Operation” workflows. The software automatically:

  • configures the ILS/VOR analyzer,
  • loads predefined inspection procedures,
  • guides the operator through GIS-based waypoints,
  • compensates for positioning deviations,
  • and starts/stops data recording automatically.

This minimizes operator workload during campaigns and improves measurement repeatability.

Benefits

Operational benefits:

  • Reduced operator workload
  • Faster campaign preparation
  • Repeatable inspection procedures
  • Digitalized inspection report

Technical benefits:

  • Simplified troubleshooting
  • Improved measurement consistency
  • In depth analysis thanks to raw measurements (modulation depth, carrier frequency…)
Inspection campaigns
ILS localizer
Ground-based inspectionUAS-based inspection
  • Course alignment (along runway center line).
  • Course structure and displacement sensitivity (across the runway at the threshold).
  • Off-course clearance. 
  • Course alignment (along the approach and the runway center line).
  • Course structure and displacement sensitivity (across the runway at the threshold).
  • Off-course clearance.

 

ILS glide slope
Ground-based inspectionUAS-based inspection
  • Glide path alignment, course structure and displacement sensitivity (static elevation above the threshold).
  • Glide path alignment, course structure and displacement sensitivity (vertical flight).
  • Glide path alignment (approach).
  • Off-course clearance.

 

VOR
Ground-based inspectionUAS-based inspection
  • Sensing and pattern accuracy for radial alignment.
  • Sensing and pattern accuracy for orbit alignment.
  • Sensing and pattern accuracy for radial alignment and VOR cone-of-silence crossing.
  • Sensing and pattern accuracy for orbit alignment.

 

Components
Description
Ground-based inspectionUAS-based inspection
  • Localizer and VOR mast mounted on a vehicle
  • Glide slope mast mounted on a trailer or van.
  • GNSS/RTK positioning.
  • EMIL software
  • ILS/VOR analyzer: Rohde&Schwarz EVSG1000
  • UAV-integrated payload (analyzer and antenna).
  • GNSS/RTK positioning.
  • EMIL software
  • ILS/VOR analyzer: Rohde&Schwarz EVSD1000
Integration
Ground-based inspectionUAS-based inspection
  • Vehicle for localizer and VOR ground inspection (4m height mast).
  • Trailer or van for glide slope ground inspection (22m height mast).
  • Integration on-board DJI M350 RTK:
  • 30 minutes operation time.
  • BVLOS range operation (according to country-specific regulations) thanks to 4G/LTE datalink.
  • Optional ADS-B transponder for operating in controlled airspace.

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