Title :
System quality factors for LPI communications
Author :
Gutman, Lawrence L. ; Prescott, Glenn E.
Author_Institution :
US Air Force Res. & Dev. Center, Wright Patterson AFB, OH, USA
Abstract :
Quality factors are developed for low-probability-intercept (LPI) communication systems in order to provide a quantitative technique that allows the system engineer to evaluate LPI effectiveness in the presence of jammers and intercept receivers. LPI quality factors are derived from the system link equations, which describe the signal power gains and losses as a function of system link parameters. Quality factors for the essential components of the LPI system that provide some advantage to the cooperative transmitter and receiver over the jammer and intercept receiver are described. These include quality factors for the antennas, type of modulation, atmospheric propagation conditions, and interference rejection capability.<>
Keywords :
interference suppression; jamming; probability; radio links; radiowave propagation; signal detection; RFI; antennas; atmospheric propagation; effectiveness; electronic warfare; intercept receivers; interference rejection; jammers; losses; lower probability intercept communication; military systems; modulation; quality factors; quantitative evaluation; signal power gains; system engineer; system link equations; Adaptive filters; Bandwidth; Detectors; Jamming; Noise figure; Performance analysis; Q factor; Receiving antennas; Transmitters; Transmitting antennas;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
