Anomalous Propagation of Radio Waves from Distant ILS Localizers Due to Ionospheric Sporadic‐E
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DOI: 10.1029/2020sw002517
Abstract: The ionospheric sporadic‐E (Es) layer occasionally causes anomalous propagation (AP) of VHF radio waves to distant locations. This effect, EsAP, may cause interference to VHF radio operation above 100 MHz. Recent study showed that VHF… read more here.
Keywords: ionospheric sporadic; anomalous propagation; radio; ils loc ... See more keywords
Ensemble Classification for Anomalous Propagation Echo Detection with Clustering-Based Subset-Selection Method
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DOI: 10.3390/atmos8010011
Abstract: Several types of non-precipitation echoes appear in radar images and disrupt the weather forecasting process. An anomalous propagation echo is an unwanted observation result similar to a precipitation echo. It occurs through radar-beam ducting because… read more here.
Keywords: classification; classifier; anomalous propagation; clustering based ... See more keywords
Observations of anomalous propagation over waters near Sweden
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DOI: 10.5194/amt-16-1789-2023
Abstract: Abstract. Radio waves propagating in the atmosphere are affected by the prevailing atmospheric state. The state of the atmosphere can cause radio waves to refract more or less towards the ground. When the refractive index… read more here.
Keywords: ground clutter; anomalous propagation; propagation waters; observations anomalous ... See more keywords