Analysis of the Crichlow Graphical Model of Atmospheric Radio Noise at Very Low Frequencies.
Abstract
The Crichlow graphical model for the amplitude probability distribution (APD) of atmospheric radio noise (ARN) is analyzed. The model consists of two straight lines and a circular arc on Rayleigh paper. Formulas are obtained for the probability density function of the noise envelope in terms of the geometric descriptors of the APD. The Newton-Raphson method is applied to the density to solve for the geometric descriptors in terms of the statistical moments represented by the V sub d and L sub d ratios. The performance of the binary and M-ary coherent phase shift keyed communication system is predicted based upon the density of the graphical model and the less precise lognormal model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1974
- Accession Number
- ADA008679
Entities
People
- Kenneth E. Wilson
Organizations
- Air Force Institute of Technology