Now showing items 1-10 of 35
SPECTRAL ESTIMATION VIA STATIONARITY-CONSTRAINED BANDLIMITED EXTRAPOLATION
Bandlimited extrapolation is beset with two problems that make it difficult to use as a spectral-estimation technique in many practical applications. First, the frequency support of the signal being estimated must be ...
ON EFFICIENT DIGITAL FILTERING
Part I: Multistage Multirate Digital Filtering. A theorem is introduced which is useful in deriving equivalent multirate filter structures. Frequency responses of multistage multirate filters are derived and defined in ...
EIGENVALUE ANALYSIS FOR SOURCE DETECTION WITH NARROWBAND PASSIVE ARRAYS
Knowing the number of sources in the acoustic field of a narrowband passive array can be very useful when determining the bearing of these sources relative to the array; many of the "high resolution" bearing estimation ...
OPTIMAL RECOVERY OF SIGNALS FROM LINEAR MEASUREMENTS AND PRIOR KNOWLEDGE (EXTRAPOLATION, DETERMINISTIC, BAND-LIMITED, SPECTRAL, ESTIMATION)
The problem of band-limited extrapolation is studied in a general framework of estimation of a signal in an ellipsoidal signal class from the value of a linear transformation. The dissertation deals with finite-length ...
IMAGE DATA COMPRESSION AND RECONSTRUCTION BASED ON FREQUENCY DOMAIN CONSIDERATIONS AND PARTIAL DIFFERENTIAL EQUATION MODELS
The image data compression and reconstruction problems are investigated in this dissertation, and new techniques for their solution are presented. Conventional image transform coding techniques are given a spatial domain ...
APPROXIMATION AND DECOMPOSITION OF FUNCTIONS AND DISTRIBUTIONS BASED ON PRONY METHOD
This dissertation presents certain extensions and applications of the Prony method both in real and complex domains. First, a recursive algorithm for the conventional (time domain) Prony method is developed for finding the ...