𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A New Time-Domain Frequency-Selective Quantification Algorithm

✍ Scribed by Rocco Romano; Andrea Motta; Stefania Camassa; Claudia Pagano; Maria Teresa Santini; Pietro Luigi Indovina

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
187 KB
Volume
155
Category
Article
ISSN
1090-7807

No coin nor oath required. For personal study only.

✦ Synopsis

In this paper a new time-domain frequency-selective quantification algorithm is presented. Frequency-selective quantification refers to a method that analyzes spectral components in a selected frequency region, ignoring all the other components outside. The algorithm, referred to as MeFreS (Metropolis Frequency-Selective), is based on rank minimization of an opportune Hankel matrix. The minimization procedure is satisfied by the down-hill simplex method, implemented with the simulated annealing method. MeFreS does not use any preprocessing step or filter to suppress nuisance peaks, but the signal model function is directly fitted. In this manner, neither inherent signal distortions nor estimation biases to be corrected occur. The algorithm was tested with Monte Carlo simulations. A comparison with VARPRO and AMARESw algorithms was carried out. Finally, two samples of known content from NMR data were quantified.

πŸ“œ SIMILAR VOLUMES

A Time-Domain Algorithm for NMR Spectral
A Time-Domain Algorithm for NMR Spectral Normalization
✍ Rocco Romano; Maria Teresa Santini; Pietro Luigi Indovina πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 126 KB

Recently, a new method for quantitatively comparing NMR spectra of control and treated samples, in order to examine the possible occurring variations in cell metabolism and/or structure in response to numerous physical, chemical, and biological agents, was proposed. This method is based upon the uti

A new subgridding method for the finite-
A new subgridding method for the finite-difference time-domain (FDTD) algorithm
✍ Wenhua Yu; Raj Mittra πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 133 KB πŸ‘ 2 views

modeling of electromagnetic wave scattering and radar cross Ž . section, Proc IEEE 77 1989 , 682᎐699. 3. X. Zhang and K.K. Mei, Time-domain finite difference approach to the calculation of the frequency-dependent characteristics of microstrip discontinuities, IEEE Trans Microwave Theory Tech Ž . 36

A Fast Algorithm for Adapted Time–Freque
A Fast Algorithm for Adapted Time–Frequency Tilings
✍ Christoph M. Thiele; Lars F. Villemoes πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 221 KB

We first consider orthonormal bases of R N consisting of discretized rescaled Walsh functions, where N is a power of two. Given a vector, the best basis with respect to an additive cost function is found with an algorithm of order O(N log N). The algorithm operates in the time-frequency plane by con

Direct connection between time-domain pe
Direct connection between time-domain performance and frequency-domain characteristics
✍ Matthew A. Franchek; Paul A. Herman πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 346 KB

Presented are the relationships between the transient response characteristics of a closed-loop system due to a step input and the frequency response characteristics which influence this response. The class of transfer functions addressed include those which are RH 2 . The relationships developed ar

A new microstrip frequency-selective sur
A new microstrip frequency-selective surface
✍ P. P. Sarkar; R. Bhattacharjee; S. Das; S. Sarkar; S. K. Chowdhury πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 94 KB

## Abstract The frequency‐selective property of a concentric ring microstrip patch with a circular patch at its center has been investigated experimentally. Measured data indicate a 16 dB dip in the normalized transmitted electric field versus frequency plotted at a particular frequency. © 2001 Joh