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Impact of the Propagation Channel on Reception Quality of the DAB Signal

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Abstract

Propagation of terrestrial DAB signal depends on HF carrier frequency, transmitter radiation power, signal polarity, and terrain and weather factors. However, in receiver reception conditions are determined by the baseband signal to noise ratio. In the DAB system, the levels of subcarriers of the OFDM demodulator play a decisive role. And subcarrier levels are determined by individual path levels and relative delays between them in multipath wireless channel. It is clearly presented by the phasor representation of the signal paths in the baseband channel. The general rule is demonstrated by specific examples.

Keywords

HF signal protection parameters Baseband DAB signal Phasor representation Signal-frequency envelope Inter-symbol interference (ISI) Inter-carrier interference (ICI) 

References

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Copyright information

© The Author(s), under exclusive license to Springer Nature Switzerland AG 2022

Authors and Affiliations

  1. 1.National Institute of TelecommunicationsWroclawPoland

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