Communication over fading dispersive channels
Performance prediction, and error analysis for digital signal transmission over fading dispersive channel
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Performance prediction, and error analysis for digital signal transmission over fading dispersive channel
Demodulators for analog communication over slowly time varying, frequency selective fading channels
Polarization noise and atmospheric induced fading of PCM/PL system, obtaining bit error rate curves through Poincare sphere and Mueller matrix theory
Signal fading due to scattered signal reflected from rough planet surface in line of sight communication between ejected probe and spacecraft
Phase variance and autocorrelation measurement during radio star visibility fades
Radio stars visibility fades observed in Alaska near solar minimum, discussing ionospheric optical depths
Error rate from FSK binary signal detection calculated using FM discriminator for FM signal with nonselective fading in Gaussian noise
Radio star visibility fades relationship to line of sight auroral intensity
Relationship between complex covariance and covariances of envelopes of Rician fading communication channels
Signal fading analysis from Venera 4 data in lower Venusian atmosphere
Sunde model of troposcatter channel as transmission medium in computer simulation of adaptive digital communication scheme for selective fading channels
Digital simulation of phase locked receiver in diffuse multipath fading environment with band limited thermal noise
Binary error investigation in noncoherent FSK communication link with nonselective fading, noting Doppler shift
Microwave signal fading in Venus atmosphere due to turbulence, discussing atmospheric dielectric permittivity variance
Correlation distance of VHF fading from irregularities in equatorial ionosphere, using NASA STADAN in Chile
Photoelectron count of lognormally fading optical signal, discussing noncentral chi square random variable approximation
System performance is determined for an optical communication system using noncoherent detection in the presence of tracking error induced signal fading assuming (1) binary on-off modulation (OOK) with both fixed and adaptive threshold receivers, and (2) binary polarization modulation (BPM). BPM is shown to maintain its inherent 2- to 3-dB advantage over OOK when adaptive thresholding is used, and to have a substantially greater advantage when the OOK system is restricted to a fixed decision threshold.
Using a multiple-scatter propagation theory, the characteristics of the transionospheric satellite-earth communication links are related to the parameters of the ionosphere. General equations for the frequency correlation functions are derived. Some approximate solutions are obtained and numerical examples are given. Also discussed are the degree of coherence and potential applications of the procedure to characterize the intense fading channel.