Accession Number : AD0619178

Title :   THE SPECTRAL CHARACTERIZATION AND COMPARISON OF NON-STATIONARY PROCESSES.

Descriptive Note : Research rept.,

Corporate Author : ROCKETDYNE CANOGA PARK CALIF

Personal Author(s) : Dubman,M. R.

Report Date : 02 AUG 1965

Pagination or Media Count : 83

Abstract : The spectral representation theories of second order stationary, harmonizable, exponentially convex, and normal-type stochastic processes are reviewed and the processes are compared. Locally stationary and asymptotically stationary processes are viewed within the framework of harmonizable and normal-type processes. The concept of a time-dependent spectrum is developed, a general condition for its existence is given, and the time-dependent spectra of harmonizable and normaltype processes are derived. (Author)

Descriptors :   (*STOCHASTIC PROCESSES, HARMONIC ANALYSIS), (*HARMONIC ANALYSIS, STOCHASTIC PROCESSES), TIME, SERIES(MATHEMATICS), INTEGRAL TRANSFORMS, STATISTICAL FUNCTIONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE