January 1969 | NTIA Technical Memo ERL TM ITS 218
Analysis of a propagation channel for a digital communication system
John R. Juroshek
Abstract: A hypothetical aircraft-to-ground communication channel is examined for frequencies in the 2 -30 MHz band, and in the 200 -400 band. The channel is characterized by its correlation function and scatter function. Particular attention is given to the effects of multipath spread and frequency spread on the performance of a non-coherent, frequency-shiftkeyed, matched filter receiver. If the channel multipath spread is appreciable then the probability-of-error vs signal-to-noise ratio curve has a minimum beyond which increases in signal-to-noise will not decrease probability-of-error.
Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.