Wideband Multi-Carrier HF Communication (Bredbandig OFDM Transmission paeKortvaegskanalen)

摘要

The potential of wideband multi-carrier, or othogonal frequency divisionmultiplex (OFDM), for HF communication is explored. Problems connected with HF communications are atmospheric noise, multi-math propagation and interfering signals from other uses. Interference suppression in an OFDM system, and a comparable direct-sequence (DS) system, is investigated.