Articles with "frequency estimation" as a keyword



A new grid frequency estimation algorithm based on the fractional FFT for IoT nodes time stamps

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Published in 2018 at "Cluster Computing"

DOI: 10.1007/s10586-017-1653-2

Abstract: In the era of Internet of Things, so many wireless networked sensors and smart devices are embedded in infrastructures. For so many different wireless sensors, accurate times tamps are important to interpret data. In general,… read more here.

Keywords: frequency; frequency estimation; time stamps; grid frequency ... See more keywords

2D DOA and Frequency Estimation Method with One Vector-Sensor and Two Pressure Sensors Based on ESPRIT and Signal Power

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-017-4785-z

Abstract: We use one vector and two pressure sensors to form a sparse large aperture L-shape array for high performance two-dimensional (2D) direction of arrival (DOA) and frequency estimation. Because the number of sensors is small… read more here.

Keywords: vector; frequency; method; doa frequency ... See more keywords

Multi-component instantaneous frequency estimation using signal decomposition and time-frequency filtering

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Published in 2020 at "Signal, Image and Video Processing"

DOI: 10.1007/s11760-020-01711-6

Abstract: A novel method is presented for the instantaneous frequency estimation of multi-component signals with crossing signatures in the time-frequency domain. The proposed method uses a combination of Eigen decomposition of time-frequency distributions and time-frequency filtering… read more here.

Keywords: instantaneous frequency; frequency; multi component; time frequency ... See more keywords

Hail frequency estimation across Europe based on a combination of overshooting top detections and the ERA-INTERIM reanalysis

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Published in 2017 at "Atmospheric Research"

DOI: 10.1016/j.atmosres.2017.07.025

Abstract: Abstract This article presents a hail frequency estimation based on the detection of cold overshooting cloud tops (OTs) from the Meteosat Second Generation (MSG) operational weather satellites, in combination with a hail-specific filter derived from… read more here.

Keywords: hail; era interim; reanalysis; frequency estimation ... See more keywords

Bayesian Frequency Estimation on Narrow Bands

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Published in 2021 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2021.08.343

Abstract: Abstract In some recent works, the authors have proposed and developed an Empirical Bayes framework for frequency estimation. The unknown frequencies in a noisy oscillatory signal are modeled as uniform random variables supported on narrow… read more here.

Keywords: estimation; frequency; bayesian frequency; frequency estimation ... See more keywords

Frequency estimation by frequency jumps

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Published in 2025 at "npj Quantum Information"

DOI: 10.1038/s41534-025-01112-y

Abstract: The frequency of a quantum harmonic oscillator cannot be precisely determined through static measurement strategies on a prepared state. Therefore, dynamical procedures must be employed, involving measurements taken after the system has evolved and encoded… read more here.

Keywords: information; estimation frequency; protocol; frequency estimation ... See more keywords

Energy-efficient quantum frequency estimation

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Published in 2018 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aac5b6

Abstract: The problem of estimating the frequency of a two-level atom in a noisy environment is studied. Our interest is to minimise both the energetic cost of the protocol and the statistical uncertainty of the estimate.… read more here.

Keywords: frequency; efficient quantum; energy efficient; frequency estimation ... See more keywords

Improving cutoff frequency estimation via optimized π-pulse sequence

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Published in 2024 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ad9ba1

Abstract: The cutoff frequency is one of the crucial parameters that characterize the environment. In this paper, we estimate the cutoff frequency of the Ohmic spectral density by applying the π-pulse sequences (both equidistant and optimized)… read more here.

Keywords: pulse sequence; cutoff; cutoff frequency; frequency estimation ... See more keywords

Enhanced Quantum Frequency Estimation by Nonlinear Scrambling.

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Published in 2025 at "Physical review letters"

DOI: 10.1103/39bt-37yl

Abstract: Frequency estimation, a cornerstone of basic and applied sciences, has been significantly enhanced by quantum sensing strategies. Despite breakthroughs in quantum-enhanced frequency estimation, key challenges remain: static probes limit flexibility, and the interplay between resource… read more here.

Keywords: estimation nonlinear; quantum frequency; enhanced quantum; frequency estimation ... See more keywords

Human Micro-Doppler Frequency Estimation Approach for Doppler Radar

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2793277

Abstract: Micro-Doppler frequency estimation is an important issue for radar target recognition. In this paper, a novel approach is proposed to accurately estimate the micro-Doppler frequencies of specific target scattering parts, which can be very promising… read more here.

Keywords: micro doppler; doppler; doppler frequency; frequency estimation ... See more keywords

DFT-Based Frequency Estimation of Multiple Sinusoids

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3145913

Abstract: An accurate frequency estimation method of multi-component sinusoidal signal in additive white Gaussian noise (AWGN) is proposed. The algorithm is implemented in the frequency domain and based on discrete Fourier transform (DFT). The maximum DFT… read more here.

Keywords: dft based; based frequency; frequency; estimation ... See more keywords