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Algorithm For The Instantaneous Frequency Estimation Using Time-Frequency Distributions With Adaptive Window Width

Ljubisa Stankovic, Vladimir Katkovnik
1998 Zenodo  
CONCLUSION We can conclude that the instantaneous frequency estimation using the adaptive window length, according to the algorithm derived in this letter, has lower MSE than the best constant window case  ...  The algorithm may be used in a wide range of time-frequency representations.  ...  Consider the problem of the instantaneous frequency, !(t) = 0 ( t ), estimation from discrete-time observations (1).  ... 
doi:10.5281/zenodo.36982 fatcat:dovz6cfw7bbino7eixrruf4d7y

Expectation Maximization (Em) Algorithm For Instantaneous Frequency Estimation With Kalman Smoother

D. Narayana Dutt, Md. Emtiyaz Khan
2004 Zenodo  
CONCLUSION In this paper, we proposed a new algorithm EMIF for instantaneous frequency estimation, using EM algorithm approach in a Kalman smoother framework.  ...  INTRODUCTION Estimation of instantaneous frequency (IF) is of primary interest in many fields like wireless communications, speech, radar and underwater acoustics etc.  ... 
doi:10.5281/zenodo.38638 fatcat:57wmolnzvrdopfxizqdiuq4e3u

RANSAC algorithm for instantaneous frequency estimation and reconstruction of frequency-modulated undersampled signals

Igor Djurović
2021 EURASIP Journal on Advances in Signal Processing  
An alternative is proposed here based on the random samples consensus algorithm (RANSAC) applied to the instantaneous frequency (IF) estimates obtained from the time-frequency (TF) representation of recordings  ...  The proposed technique is tested against third- and fifth-order polynomial phase signals (PPS) and also for signals corrupted by noise.  ...  Declarations Consent for publication Not applicable. Competing interests The authors declare that they have no competing interests. Received: 30 October 2019 Accepted: 6 April 2021  ... 
doi:10.1186/s13634-021-00726-6 fatcat:cbuuorercrgm5leyqkgw4mmzru

Algorithm for the instantaneous frequency estimation using time-frequency distributions with adaptive window width

L. Stankovic, V. Katkovnik
1998 IEEE Signal Processing Letters  
A method for minimization of the mean square error (MSE) of the instantaneous frequency estimation using timefrequency distributions, in the case of a discrete optimization parameter, is presented.  ...  It does not require knowledge of the estimation bias. The method is illustrated on adaptive window width determination in the Wigner distribution.  ...  ACKNOWLEDGMENT The authors are very thankful to the Associate Editor and reviewers for remarks that helped in preparing the final version of this letter.  ... 
doi:10.1109/97.712105 fatcat:rc2pzfupjjbohk3sb44uhumvke

An Efficient Algorithm for Instantaneous Frequency Estimation of Nonstationary Multicomponent Signals in Low SNR

Jonatan Lerga, Victor Sucic (EURASIP Member), Boualem Boashash
2011 EURASIP Journal on Advances in Signal Processing  
A method for components instantaneous frequency (IF) estimation of multicomponent signals in low signal-to-noise ratio (SNR) is proposed.  ...  The method combines a new proposed modification of a blind source separation (BSS) algorithm for components separation, with the improved adaptive IF estimation procedure based on the modified sliding  ...  Acknowledgments This paper is a part of the research project "Optimization and Design of Time-Frequency Distributions," no. 069-0362214-1575, which is financially supported by the Ministry of Science,  ... 
doi:10.1155/2011/725189 fatcat:taxmhjhfc5f5thx5srosivcumq

Combination of the viterbi algorithm and cross-wigner distribution for the instantaneous frequency estimation phase signals in high noise environments

Igor Djurović
2018 Journal of Electrical Engineering  
In this paper, combination of the cross-Wigner distribution (XWD) and the Viterbi algorithm (VA) for the instantaneous frequency (IF) estimation of frequency modulated (FM) signals in high noise environments  ...  with improved accuracy for high noise environments  ...  Introduction The instantaneous frequency (IF) estimation of the frequency modulated (FM) signals for high noise environments is considered [1, 2] .  ... 
doi:10.2478/jee-2018-0035 fatcat:7rxssqvz4bbrbl3gbofskg3aeq

Instantaneous Frequency Estimation Method for the Vibration Signal of Rotating Machinery Based on STFTSC Algorithm

Binyun Wu, Shaojie Wang, Liang Hou, Xiangjian Bu, Chunhua Chen, Zheng Yang
2022 The International Journal of Acoustics and Vibration  
The results show that the STFTSC instantaneous frequency estimation algorithm has a higher extraction accuracy and better application value in engineering problems than the PCT.  ...  the instantaneous frequency.  ...  Instantaneous Frequency Estimation by STFTSC Algorithm In this study, we presented the STFTSC instantaneous frequency estimation algorithm by introducing the ideal of SC algorithm to search the best path  ... 
doi:10.20855/ijav.2022.27.11842 fatcat:7xugd2lwujhjbef5z66n4sb5qy

An improved algorithm for respiration signal extraction from electrocardiogram measured by conductive textile electrodes using instantaneous frequency estimation

Sung-Bin Park, Yeon-Sik Noh, Sung-Jun Park, Hyoung-Ro Yoon
2008 Medical and Biological Engineering and Computing  
the signal with minimum variation of the instantaneous frequency.  ...  An optimal EDR signal among the three EDR signals derived from each lead (and arctangent of their ratio) is selected by estimating the instantaneous frequency using the Hilbert transform, and then choosing  ...  This process consists of two parts, preprocessing and instantaneous frequency estimation by Hilbert transform.  ... 
doi:10.1007/s11517-007-0302-y pmid:18210178 pmcid:PMC2668578 fatcat:mofmxbziq5bmrnkjgpfzo4qkga

Fractional synchrosqueezing transformation and its application in the estimation of the instantaneous frequency of a rolling bearing

Xin Li, Zengqiang Ma, Suyan Liu, Feiyu Lu
2020 IEEE Access  
algorithm is to improve the estimation accuracy of the instantaneous frequency.  ...  The estimation accuracy of the instantaneous frequency is higher and the instantaneous frequency trajectories are smoother based on the FRSST algorithm.  ...  For more information, see https://creativecommons.org/licenses/by/4.0/. This article has been accepted for publication in a future issue of this journal, but has not been fully edited.  ... 
doi:10.1109/access.2020.3010629 fatcat:y7nc4fcmvnhvvfo2bvguljzsde

Adaptive Algorithm for Estimating Vortex Frequencies in Vortex Sonic Flowmeters
Адаптивный алгоритм оценки частоты вихреобразования в вихреакустических расходомерах

A.P. Lapin, A.M. Druzhkov
2016 Bulletin of the South Ural State University Ser Computer Technologies Automatic Control & Radioelectronics  
A fluent velocity v can be expressed and calculated at every instant using the instantaneous frequencies estimated by the formula (1) for each of the algorithms.  ...  The main requirements for the developed algorithm are the following. -When the medium flow is stable, the algorithm should provide low dispersion for frequency estimations.  ... 
doi:10.14529/ctcr160308 fatcat:5lrqgpblyjahjmalgkzjjlu7oe

Instantaneous Pitch Estimation Based On Rapt Framework

Elias Azarov, Alexander Petrovsky, Maxim Vashkevich
2012 Zenodo  
Some original algorithms for instantaneous pitch estimation have been proposed recently [1] [2] .  ...  Choosing an algorithm for pitch estimation is always a tradeoff between time and frequency resolution, robustness, delay and computational complexity.  ... 
doi:10.5281/zenodo.52180 fatcat:qikzkvwgk5fzlen35u2cxj2gyy

A comparison of the energy operator and the Hilbert transform approach to signal and speech demodulation

Alexandros Potamianos, Petros Maragos
1994 Signal Processing  
The Hilbert transform together with Gabor's analytic signal provides a standard linear integral approach to estimate the amplitude envelope and instantaneous frequency of signals with a combined amplitude  ...  The results provide strong evidence that the estimation errors of the smoothed energy operator approach are similar to that of the Hiibert transform approach for speech applications, but smaller for communication  ...  The amplitude envelope and instantaneous frequency estimates for the energy operator and the Hilbert transform separation algorithms are shown at Figs. 6(c)-(f).  ... 
doi:10.1016/0165-1684(94)90169-4 fatcat:lood4cltevdzrjt35zcp6ln2ka

Separation algorithm of vital sign signal in complex environments based on time-frequency filtering

Kun Tian, Jin Li, Xiaobo Yang
2016 EURASIP Journal on Wireless Communications and Networking  
In this paper, a separation method for vital sign signals based on time-frequency filtering (TFF) is proposed, which mainly predicts the instantaneous frequency (IF) by combining the Viterbi algorithm  ...  According to the simulation result, this algorithm has good resolution precision and anti-noise performance, and it is applicable for the extraction of vital sign signals in low signal-to-noise ratio,  ...  and instantaneous frequency estimation methods on the separation algorithm.  ... 
doi:10.1186/s13638-016-0589-1 fatcat:543ydqrpnjg4pccciv2vgfqzvm

Speech analysis and synthesis using an AM–FM modulation model

Alexandros Potamianos, Petros Maragos
1999 Speech Communication  
Ecient modeling and coding (at 4.8±9.6 kbits/sec) algorithms are proposed for the amplitude envelope and instantaneous frequency of speech resonances.  ...  First, multiband demodulation analysis (MDA) is applied to the problem of fundamental frequency estimation using the average instantaneous frequency as estimates of pitch harmonics.  ...  Short-time instantaneous frequency estimates are proposed and their relative merits are discussed for formant and fundamental frequency estimation.  ... 
doi:10.1016/s0167-6393(99)00012-6 fatcat:w7wckbfrm5dsvhztdhpwaorodq

ESTIMATION OF INSTANTANEOUS FREQUENCY PARAMETERS OF THE OPERATOR-BASED SIGNAL SEPARATION METHOD

XIYUAN HU, SILONG PENG, WEN-LIANG HWANG
2009 Advances in Adaptive Data Analysis  
Existing approaches estimate the operator's parameters from the local extrema of a signal. In contrast, we show that the parameters can be estimated by adopting a variational approach.  ...  The procedure involves two steps: estimating the operator, and decomposing the signal into two subcomponents.  ...  A similar approach for estimating instantaneous frequencies in the time-frequency representation of a noisy signal is proposed in Ref. 5 .  ... 
doi:10.1142/s1793536909000308 fatcat:3yzxh3lobfazjnqr3kttnc7eey
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