منابع مشابه
Hybrid linear/bilinear time-scale analysis
We introduce a new method for the time-scale analysis of non-stationary signals. Our work leverages the success of the “time-frequency distribution series / cross-term deleted representations” into the time-scale domain to match wide-band signals that are better modeled in terms of time shifts and scale changes than in terms of time and frequency shifts. Using a wavelet decomposition and the Be...
متن کاملReal-Time Scale Selection in Hybrid Multi-scale Representations
Local scale information extracted from visual data in a bottomup manner constitutes an important cue for a large number of visual tasks. This article presents a framework for how the computation of such scale descriptors can be performed in real time on a standard computer. The proposed scale selection framework is expressed within a novel type of multi-scale representation, referred to as hybr...
متن کاملLarge Scale Experiments Data Analysis for Estimation of Hydrodynamic Force Coefficients Part 1: Time Domain Analysis
This paper describes various time-domain methods useful for analyzing the experimental data obtained from a circular cylinder force in terms of both wave and current for estimation of the drag and inertia coefficients applicable to the Morison’s equation. An additional approach, weighted least squares method is also introduced. A set of data obtained from experiments on heavily roughened circul...
متن کاملHybrid analysis of large scale PEPA models
We introduce a new hybrid analysis technique for large scale PEPA models that combines stochastic simulation with ODEs, providing a finer trade-off between accuracy of the solutions and the associated computational costs. We describe a version that employs ODEs for the mean component counts and also a version using ODEs for second order moments. This enables the calculation of covariances of co...
متن کاملTime-Frequency and Time-Scale Analysis
Current multimedia technologies call for efficient ways of representing signals. We review several efficient methods for signal representation, emphasizing potential applications in signal compression and denoising. We pay special attention to the representations which are adapted to “non-stationary” features of signals, in particular the classes of bilinear representations, and their approxima...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Signal Processing
سال: 1999
ISSN: 1053-587X
DOI: 10.1109/78.738266