Case study: prediction of RFI effects of electrified railways on aeronautical radio navigation stations

The case is that an electrified railway line is 300 meters away across an airport runway. The paper studies both of active and passive radio frequency interference caused by the electrified railways to aeronautical radio navigation stations, especially to instrument landing systems (ILS). The EMC prediction model has been built. The prediction results agreed with the results of the actual flying check test.