Accession Number : AD0769230

Title :   The Theory of Signal Detectability: Cyclo-Stationary Processes in Additive Noise.

Descriptive Note : Technical rept.,


Personal Author(s) : Lapointe,Joseph R. , Jr

Report Date : OCT 1973

Pagination or Media Count : 123

Abstract : Cyclo-stationary (CS) processes are those nonstationary processes that appear to be stationary when observed at integral multiples of a basic interval. Wide Sense Cyclo-stationary (WSCS) processes possess autocorrelation functions and autocorrelation matrices with a cyclic structure for continuous and discrete time respectively. Discrete time WSCS processes normally arise from sampling continuous time WSCS processes. Other sampling schemes such as multiplexing samples from different stationary random processes or multiplexing samples from the sensors of an array also generate random processes with a cyclic structure in the autocorrelation matrix. The optimum detector for the fixed time forced choice detection of discrete time WSCS processes in additive noise is designed according to the likelihood ratio. A suboptimum detector is also presented and is the low input signal-to-noise ratio form of the optimum detector. (Modified author abstract)

Descriptors :   (*Information theory, Statistical analysis), (*Signal processing, White noise), Stochastic processes, Probability density functions, Signal to noise ratio, Matrices(Mathematics), Correlation techniques, Sampling, Multiplexing, Detection, Signals

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE