Accession Number : AD0662660

Title :   AN EXTENSION OF THE KAC-SIEGERT RESULTS AND RELATED TOPICS.

Descriptive Note : Research paper,

Corporate Author : INSTITUTE FOR DEFENSE ANALYSES ARLINGTON VA SCIENCE AND TECHNOLOGY DIV

Personal Author(s) : Turner,Robert D.

Report Date : NOV 1967

Pagination or Media Count : 41

Abstract : A tractable expression for the probability distribution of the output of a signal-processing configuration analyzed by Kac and Siegert is derived. The configuration consists of a single-tuned narrow-band input stage, followed by a square-law device, followed by a simple RC integrator. The expression obtained is useful for arbitrary values of the input-output bandwidth ratio. Expressions for the coefficients and parameters of a seven-term Edgeworth series approximation to the probability distribution of a more general configuration are presented for the zero-signal case, and for a two-term approximation when an arbitrary signal is present. The extended Kac-Siegert result is then employed to check the accuracy of the zero-signal Edgeworth approximation for an input-output bandwidth ratio of 50. It is found that the approximation is accurate out to about 4.3 standard deviations beyond the mean, corresponding to a probability of 0.0005 of exceeding the distribution function variable. (Author)

Descriptors :   (*INFORMATION THEORY, DISTRIBUTION FUNCTIONS), SIGNALS, PROCESSING, RADIO RECEIVERS, PROBABILITY DENSITY FUNCTIONS, DETECTION

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE