A new maximum Doppler frequency estimation algorithm in frequency domain

Park, Goohyun; Heo, Dong-Kyu; Hong, Daesik; Kang, Changeon

doi:10.1109/iccs.2002.1182535

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Accurate frequency detection of a periodic signal embedded in noise is a problem that has been largely studied for several applications. Many methodologies [ 4 – 7 ] have been proposed for tackling this problem, most of them relaying on Fast Fourier Transform (FFT) computation. Unfortunately, as it has been thoroughly shown, the FFT offers a fast processing engine, but its performance and resolution heavily depend on the signal-to-noise ratio (SNR) and the number of samples from the analyzed signal, jeopardizing its compliance on certain application requirements as those of frequency monitoring in power systems.…”

Section: Introductionmentioning

confidence: 99%

A Real-Time Smart Sensor for High-Resolution Frequency Estimation in Power Systems

Granados-Lieberman

Romero-Troncoso

Cabal-Yépez

et al. 2009

Sensors

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Power quality monitoring is a theme in vogue and accurate frequency measurement of the power line is a major issue. This problem is particularly relevant for power generating systems since the generated signal must comply with restrictive standards. The novelty of this work is the development of a smart sensor for real-time high-resolution frequency measurement in accordance with international standards for power quality monitoring. The proposed smart sensor utilizes commercially available current clamp, hall-effect sensor or resistor as primary sensor. The signal processing is carried out through the chirp z-transform. Simulations and experimental results show the efficiency of the proposed smart sensor.

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Section: Introductionmentioning

confidence: 99%

A Real-Time Smart Sensor for High-Resolution Frequency Estimation in Power Systems

Granados-Lieberman

Romero-Troncoso

Cabal-Yépez

et al. 2009

Sensors

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An improved method for Doppler shift estimation in CP-SCBT Mobile Communication Systems

Hua

Han

Jin

et al. 2006

2006 International Conference on Wireless and Mobile Communications (ICWMC'06)

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Nonparametric mobile speed estimation in fading channels: Performance analysis and experimental results

Zhang

Abdi

2009

IEEE Trans. Wireless Commun.

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Abstract-In this paper we propose a new speed estimation technique, applicable to both mobile and base stations, based on the characteristics in the power spectrum of mobile fading channels. Our analytic performance analysis, verified by Monte Carlo simulations, shows that our low-complexity estimator is not only robust to both Gaussian and non-Gaussian noises, but also insensitive to nonisotropic scattering observed at the mobile. The estimator performs very well in both two-and threedimensional propagation environments. The robustness against both nonisotropic scattering and line of sight can be further increased, by taking advantage of resolvable paths in wideband fading channels, due to the differences among the Doppler spectra observed at different paths. We also extend this technique to base stations with antenna arrays. By exploiting the spatial information, the proposed space-time estimator exhibits excellent performance over a wide range of noise power, nonisotropic scattering, and line-of-sight component, verified by simulation. The utility of the new method is further demonstrated by applying it to the measured data.

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A new maximum Doppler frequency estimation algorithm in frequency domain

Cited by 4 publications

References 11 publications

A Real-Time Smart Sensor for High-Resolution Frequency Estimation in Power Systems

A Real-Time Smart Sensor for High-Resolution Frequency Estimation in Power Systems

An improved method for Doppler shift estimation in CP-SCBT Mobile Communication Systems

Nonparametric mobile speed estimation in fading channels: Performance analysis and experimental results

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