Instantaneous Frequency Estimation By Group Delay Attractors And Instantaneous Frequency Attractors
, 2014 Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
Soo-Chang Pei, Shih-Gu Huang
openaire +3 more sources
IF Estimation Using Spectrogram and Scalogram [PDF]
Journal of Electrical and Electronics Engineering, 2013 This paper presents the results obtained using an instantaneous frequency estimation method, based upon the detection of the peaks of the spectrogram and the scalogram.
REIZ Romulus, MORGOŞ Lucian
doaj
Detection of LFM Radar Signals and Chirp Rate Estimation Based on Time-Frequency Rate Distribution
Sensors, 2021 Linear frequency-modulated (LFM) signals are the most significant example of waveform used in low probability of intercept (LPI) radars, synthetic aperture radars and modern communication systems.
Ewa Swiercz +2 more
doaj +1 more source
Adaptive Window Zero-Crossing-Based Instantaneous Frequency Estimation
EURASIP Journal on Advances in Signal Processing, 2004 We address the problem of estimating instantaneous frequency (IF) of a real-valued constant amplitude time-varying sinusoid. Estimation of polynomial IF is formulated using the zero-crossings of the signal.
Sekhar S Chandra, Sreenivas TV
doaj +1 more source
Method of estimation of frequency variation relying on estimation of shift of spectral peaks
Системный анализ и прикладная информатика, 2021 Problem of estimation of variated frequency of components of polyharmonic signals has been arose. Three-dimensional time-frequency representation of signals is usually used to resolve this problem.
D. A. Kechik +2 more
doaj +1 more source
Instantaneous frequency estimation using the cross Wigner-Ville distribution with application to nonstationary transient detection [PDF]
, 1990 : A method based on an iterative procedure incorporating time-frequency distributions (TFDs) is proposed for instantaneous frequency (IF) estimation of rapidly time-varying signals.
Boashash, Boualem, O'Shea, Peter J.
core +1 more source
A real-time time-frequency based instantaneous frequency estimator [PDF]
Signal Processing, 2013 Commonly used time-frequency representations, like the short-time Fourier transform, the Wigner distribution and the higher order polynomial distributions, estimate the instantaneous frequency at the middle of the time-interval used in the analysis. For real time applications, like for example in radar signal processing, where the target parameters are
Ljubisa Stankovic +2 more
openaire +1 more source
, 2001 In this paper an instantaneous frequency estimator (IFE) of a discrete-time base band complex signal is considered. The IFE is built around one-band, maximally flat linear-phase FIR filters, which are used for differentiating and delaying Cartesian ...
Cain, G.D. +3 more
core +1 more source
Statistical/computational comparison of some estimators for instantaneous frequency [PDF]
[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991 Some algorithms for estimating the instantaneous frequency of a constant-amplitude phase-modulated signal are reviewed and compared in terms of computational and statistical efficiency. Each of the algorithms is briefly described. The computational requirements for each algorithm are presented in tabular form, and the variance of each estimator ...
Boashash, B, Oshea, P, Ristic, B
openaire +2 more sources
The Use of Digital Phase Locked Loops for Estimation of Instantaneous Frequency Rate in Distributed Power Networks [PDF]
, 2007 A power system disturbance scenario which is of particular interest is that which occurs when one or more generators in a distributed power system is 'taken out'.
S.-c. Kam +5 more
core +1 more source