Title :
Possible use of pilot signals to indicate delay distortion in operating f.m.-f.d.m. radio systems
Author_Institution :
Australian Post Office Research Laboratories, Melbourne, Australia
Abstract :
Pilot tones normally used in f.m.-f.d.m. transmission allow propagation distortion to be estimated on each path of an operating system. The phases of the 1st-order sidebands relative to the carrier provide a finite-difference approximation to the gradient of group delay with frequency.
Keywords :
electric distortion measurement; radio systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19700391
