Results 1 to 10 of about 191,656 (292)
Widely Linear Adaptive Instantaneous Frequency Estimation in Vector Hydrophones [PDF]
Sensors, 2018 To solve the problem that the time-frequency resolution of Short-Time Fourier Transform (STFT) is constrained by the window length and the moving step of the short time window, and to utilize the merits of a widely linear method, a novel instantaneous ...
Panpan Peng, Liang An
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High-Concentration Time-Frequency Representation and Instantaneous Frequency Estimation of Frequency-Crossing Signals [PDF]
SensorsFrequency-crossing signals are widely found in nature and various engineering systems. Currently, achieving high-resolution time-frequency (TF) representation and accurate instantaneous frequency (IF) estimation for these signals presents a challenge and
Hui Li +4 more
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Instantaneous Frequency Estimation Algorithm for Power Systems [PDF]
JES: Journal of Engineering Sciences, 2022 This paper deals with the problem of the Instantaneous Frequency (IF) estimation of power systems, to be adopted for example in Phasor Measurement Units (PMUs) used for monitoring, control, and protection.
Christina Aziz +2 more
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Sensors, 2020 It is proposed a novel instantaneous frequency estimation technology, multi-generalized demodulation transform, for non-stationary signals, whose true time variations of instantaneous frequencies are unknown and difficult to extract from the time ...
Dezun Zhao +3 more
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Remote Sensing, 2023 In ground-penetrating radar (GPR) or lunar-penetrating radar (LPR) interpretation, instantaneous attributes (e.g., instantaneous energy and instantaneous frequency) are often utilized for attribute analysis, and they can also be integrated into a new ...
Xuebing Zhang +6 more
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MULTI-LAYERED CEPSTRUM FOR INSTANTANEOUS FREQUENCY ESTIMATION [PDF]
2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2018 In 2018 6th IEEE Global Conference on Signal and Information ...
Yu, Chin-Yun, Su, Li
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Instantaneous frequency estimation using level-crossing information [PDF]
2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004 We discuss the problem of instantaneous frequency (IF) estimation of phase signals using their level-crossing (LC) instant information. We cast the problem to that of interpolating the instantaneous phase (IP), and hence finding the IF, from samples obtained at the level-crossing instants of the phase signal. These are inherently irregularly spaced and
Chandrasekhar, S, Sreenivas, TV
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Power spectrum slope confounds estimation of instantaneous oscillatory frequency
NeuroImage, 2022 Oscillatory neural dynamics are highly non-stationary and require methods capable of quantifying time-resolved changes in oscillatory activity in order to understand neural function.
Jason Samaha, Michael X. Cohen
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Fractional Differential Equation-Based Instantaneous Frequency Estimation for Signal Reconstruction
Fractal and Fractional, 2021 In this paper, we propose a fractional differential equation (FDE)-based approach for the estimation of instantaneous frequencies for windowed signals as a part of signal reconstruction.
Bilgi Görkem Yazgaç, Mürvet Kırcı
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Machines, 2022 The vibration signal from the rotatory machinery condition monitoring under time-varying speed is usually amplitude-modulated (AM) and frequency-modulated (FM).
Yuexin Huang +4 more
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