05191594 is referenced by 21 patents and cites 7 patents.

Fading channel effects on a transmitted communication signal are simulated with both frequency and time variations using a channel scattering function to affect the transmitted signal. A conventional channel scattering function is converted to a series of channel realizations by multiplying the square root of the channel scattering function by a complex number of which the real and imaginary parts are each independent variables. The two-dimensional inverse-FFT of this complex-valued channel realization yields a matrix of channel coefficients that provide a complete frequency-time description of the channel. The transmitted radio signal is segmented to provide a series of transmitted signal and each segment is subject to FFT to generate a series of signal coefficient matrices. The channel coefficient matrices and signal coefficient matrices are then multiplied and subjected to inverse-FFT to output a signal representing the received affected radio signal. A variety of channel scattering functions can be used to characterize the response of a transmitter-receiver system to such atmospheric effects.

Title
Fading channel simulator
Application Number
7/798780
Publication Number
5191594
Application Date
November 27, 1991
Publication Date
March 2, 1993
Inventor
T Joseph Fitzgerald
Los Alamos
NM, US
Paul E Argo
Los Alamos
NM, US
Agent
William R Moser
Paul D Gaetjens
Ray G Wilson
Assignee
The United States of America represented by the United States Department of Energy
DC, US
IPC
H04B 15/00
H04B 1/10
H04L 1/04
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