MEASURED STATISTICAL CHARACTERISTICS OF AUTOMOTIVE IGNITION NOISE
Measurements have been made of the noise peak amplitude distribution of a number of identically equipped vehicles over a fixed period of time. Both vertical and horizontal polarizations were used, and measurements were made at two frequencies, 145 and 230 MHz. These statistics were then compared to various probability distributions to attempt to characterize the amplitude distribution of the noise. The distributions studied were: the log-normal, the exponential, the Rayleigh, and the Weibull distributions. It was concluded that the best fit was provided by the Weibull distribution. The parpmeters of the best fiting distribution are primarily a function of the antenna's polarization, with frequency having only a minor effect.
- Prepared for Meeting 8-12 January 1943.
New York, NY United States 10017
- Storwick, R M
- Schlick, D C
- Publication Date: 0
- Pagination: 13 p.
- TRT Terms: Automobiles; Ignition; Measurement; Motor vehicles; Noise; Sound level; Statistical analysis
- Old TRIS Terms: Automobiles/ignition noise; Ignition noise/automobiles
- Subject Areas: Data and Information Technology; Environment; Highways; Safety and Human Factors;
- Accession Number: 00261389
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: 730133 Preprint
- Files: TRIS
- Created Date: Oct 22 1974 12:00AM