Results 31 to 40 of about 234,598 (330)
Entropy, 2022 Instantaneous frequency in multi-sensor recordings is an important parameter for estimation of direction of arrival estimation, source separation, and sparse reconstruction.
Nabeel Ali Khan, Sadiq Ali, Kwonhue Choi
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Signal-adaptive evolutionary spectral analysis using instantaneous frequency estimation
, 2021 In this paper we present a signal-adaptive evolutionary spectrum estimation method based on the discrete evolutionary transform (DET). The DET provides a representation for non-stationary signals and a time-frequency kernel that permits us to obtain the ...
Akan, AYDIN
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Applied Sciences, 2021 An efficient direction of arrival estimation method is proposed. The proposed algorithm accurately estimates the instantaneous frequency of signals received by multiple sensors (array of sensors/antennas).
Nabeel Ali Khan, Sadiq Ali, Kwonhue Choi
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Frontiers in Marine Science, 2022 A line spectrum presents the form of a narrow-band time-varying signal due to Doppler effect when the single hydrophone node observes flight-radiated noise.
Shuwen Yu, Lei Xiao, Weitao Sun
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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
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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
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Rolling bearing fault diagnosis via STFT and improved instantaneous frequency estimation method
, 2020 Bearing vibration signals exhibit instantaneous modulation features under variable rotating frequency, making it difficult to identify the characteristic frequency components. As such, a novel rolling bearing fault diagnosis method via short time Fourier
Dongdong Liu +2 more
semanticscholar +1 more source
Edge estimation method for non-uniform envelope pulse based on instantaneous frequency
The Journal of Engineering, 2019 Pulse edge estimation has always been an important issue in the field of electronic reconnaissance. Here, for the unknown received pulse with non-uniform envelope, a novel pulse edge estimation method based on instantaneous frequency is proposed.
Jingyun Sun, Jiacen Xu, Lixiang Ren
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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
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Adaptive noise cancelling and time–frequency techniques for rail surface defect detection [PDF]
, 2015 Adaptive noise cancelling (ANC) is a technique which is very effective to remove additive noises from the contaminated signals. It has been widely used in the fields of telecommunication, radar and sonar signal processing.
Liang, B. +11 more
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