Simulation of Avionics Systems

Key facts

Emulation of instrument landing system (ILS)
Emulation of VHF omnidirectional radio range (VOR)
Emulation of distance measuring equipment (DME)
Emulation of ground-based augmentation systems (GBAS)

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Testing flight navigation receivers

Traditional ground-based flight navigation aids such as VOR, DME or ILS still play an important role in enroute navigation, precision approaches and landings. Landings can also be performed using satellite-based navigation in combination with differential corrections from local ground-based augmentation systems (GBAS). Onboard navigation receivers that use these technologies need to be tested under controlled and repeatable conditions. Rohde & Schwarz offers various solutions that generate signals for such navigation flight systems.

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Features & benefits

Test like it's real

Avionics receiver testing under realistic conditions

Avionics test solutions from Rohde & Schwarz allow avionics receivers to be exposed to a realistic signal environment, i.e. to signal reception conditions that are very similar to those for a receiver onboard a plane. A combined GPS/GBAS simulation generates GBAS messages based on differential corrections consistent with the simulated GNSS errors. This enables advanced multimode receiver testing.

ILS

Feature set

Generation of ILS localizer signal
Generation of ILS glideslope signal
Generation of marker beacons

VOR

Feature set

Four different operating modes (NORM, VAR, subcarrier, subcarrier + FM)
Configurable VOR bearing angle with high resolution (0.01°)

DME

Feature set

Interrogator mode and reply mode
Allows testing of DME ground stations and DME aircraft equipment
DME signal analysis in combination with the R&S^®NRP-Z81 power sensor

GBAS

Feature set

Provision of GBAS messages via VHF link
Simultaneous simulation of up to 11 GBAS frequency channels emulating multiple VHF data broadcast (VDB) towers
Generation of 1, 2, 4 or 11 message types
Support of real GBAS data generation based on user-configurable waypoint files and differential GNSS data
Flexible message type scheduling
Multimode receiver testing by means of simultaneous GNSS/GBAS simulations with differential corrections consistent with simulated GNSS errors