Accession Number:

AD0257313

Title:

EXPERIMENTAL SIMULATION OF RAYLEIGH FADING

Descriptive Note:

Corporate Author:

ROME AIR DEVELOPMENT CENTER GRIFFISS AFB N Y

Personal Author(s):

Report Date:

1961-04-01

Pagination or Media Count:

1.0

Abstract:

Research was performed to combine two Rayleigh distribution functions to represent signal amplitude in tropospheric scatter communication. Addition of several signals is considered and expressions are given for the calculation of the time statistics of the summed signal. Circuitry by which data were taken is described. Graphs of distributions for combined signals with different median levels are shown. Data are presented for the durations of fades and the general shape for the density function representing the level crossings is discussed. The results of the experimental data are useful in predicting the expected performance of the types of combiners where two input signals are added since the distribution function of the combiner output can be obtained if the distribution of each input is known. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE