The Analysis of Noisy Non-Linear Devices by Means of Generalized Random Processes

摘要

The mathematical description of noise by means of Generalized Random Processes is presented. The effects on the noise distribution of linear filters (amplifiers) is discussed and related to conventional filter theory. The modification of the noise by a quadratic device is then treated, and this formalism is then applied to the analysis of the noise performance of a correlation detector and a conventional square-law detector. The conventional detector is shown to have a superior signal-to-noise ratio. (Author)