A more robust and efficient physical layer for SEDR airborne waveform

The SATURN Enhanced Data Rate (SEDR) waveform has been introduced by Line Of Sight (LOS) NATO standardization group as the new coalition standard for military airborne Ultra High Frequency (UHF) communications. However, the current design of its physical layer presents several shortcomings since it is a straightforward transposition of SATURN definition to wider channels. Indeed, new generation wide-band solutions have to cope with new issues, such as multi-path fading, which do not affect current narrow-band solutions. This paper presents the different points of the current SEDR physical layer which could expose critical communications like the military aeronautical ones to reliability issues and proposes a new physical layer which increases significantly the robustness of the system.