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Application of Amplitude Probability Distribution to Electromagnetic Noise

IP.com Disclosure Number: IPCOM000065177D
Original Publication Date: 1985-Nov-01
Included in the Prior Art Database: 2005-Feb-19

Publishing Venue

IBM

Related People

Authors:
Haines, AA Hurt, JE [+details]

Abstract

Amplitude probability distribution (APD) characterizes time-varying radio frequency (RF) pollution, and so is useful in tracking down unwanted emanations encountered in testing of devices and in situ survey measurements. Measured distributions are examined within the framework of the Weibull Distribution, i.e., a generalized exponential distribution. Experience to date by other individuals has dealt largely with atmospheric and automotive RF emissions. This experience has indicated that most, if not all, APDs can be graphically displayed in a simple linear form or as a plot made up of two connected linear sections. During product development the decision-making process is enhanced by utilizing the results of a distribution such as this. Judgment can be made to avoid over-designing a product and the associated increased costs.