Time–frequency feature representation using energy concentration: An overview of recent advances

E Sejdić, I Djurović, J Jiang - Digital signal processing, 2009 - Elsevier
Signal processing can be found in many applications and its primary goal is to provide
underlying information on specific problems for the purpose of decision making. Traditional …

The statistical performance of some instantaneous frequency estimators

BC Lovell, RC Williamson - IEEE Transactions on Signal …, 1992 - ieeexplore.ieee.org
The authors examine the class of smoothed central finite difference (SCFD) instantaneous
frequency (IF) estimators which are based on finite differencing of the phase of the analytic …

[PDF][PDF] A review of the frequency estimation and tracking problems

PJ Kootsookos - 1993 - researchgate.net
This report presents a concise review of some frequency estimation and frequency tracking
problems. In particular, the report focusses on aspects of these problems which have been …

Statistical pattern recognition and built-in reliability test for feature extraction and health monitoring of electronics under shock loads

P Lall, P Choudhary, S Gupte… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
The built-in stress test (BIST) is extensively used for diagnostics or identification of failure.
The current version of BIST approach is focused on reactive failure detection and provides …

A unified approach to the STFT, TFDs, and instantaneous frequency

PJ Kootsookos, BC Lovell… - IEEE Transactions on …, 1992 - ieeexplore.ieee.org
Cohen's class of time-frequency representations (TFRs) is reformulated into a discrete-time,
discrete-frequency, computer-implementable form. It is shown how, in this form, many of the …

Anomaly detection and classification for PHM of electronics subjected to shock and vibration

P Lall, P Gupta, A Angral - IEEE Transactions on Components …, 2012 - ieeexplore.ieee.org
Failures in electronics subjected to shock and vibration are typically diagnosed using the
built-in self test (BIST) or using continuity monitoring of daisy-chained packages. The BIST …

Discrete-time instantaneous frequency and its computation

M Sun, RJ Sclabassi - IEEE transactions on signal processing, 1993 - ieeexplore.ieee.org
Classical results indicate that the means of the Fourier and instantaneous frequencies are
exactly equal and the weighted variance of the Fourier frequency is greater than or equal to …

A new state-space for unbalanced three-phase systems: Application to fundamental frequency tracking with kalman filtering

AT Phan, G Hermann, P Wira - 2016 18th Mediterranean …, 2016 - ieeexplore.ieee.org
In nowadays electrical grids with distributed renewable energy generation, in microgrids and
smart grids, the estimation of the fundamental frequency in a fast and precise way is …

Fault-mode classification for health monitoring of electronics subjected to drop and shock

P Lall, P Gupta, D Panchagade… - 2009 59th Electronic …, 2009 - ieeexplore.ieee.org
Failures in electronics subjected to shock and vibration are typically diagnosed using the
built-in self test (BIST) or using continuity monitoring of daisy-chained packages. The BIST …

Identification of failure modes in portable electronics subjected to mechanical-shock using supervised learning of damage progression

P Lall, P Gupta, K Goebel - 2011 IEEE 61st Electronic …, 2011 - ieeexplore.ieee.org
An anomaly detection and failure mode classification method has been developed for
electronic assemblies with multiple failure modes. The presented prognostic health …