Statistics of Regenerative Digital Transmission

Bennett, W. R.

doi:10.1002/j.1538-7305.1958.tb01560.x

Cited by 226 publications

(53 citation statements)

References 1 publication

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“…The "cyclostationarity" term was introduced by Bennett in 1958 [21] and the theory of cyclostationarity was developed by Gardner [22]. More recently, Bonnardot et al have shown that this theory can bring new solutions to fault detection and diagnosis problems [23].…”

Section: -Time-frequency Domain Analysismentioning

confidence: 99%

On the Detection of Induction-Motor Rotor Fault by the Combined “Time Synchronous Averaging-Discrete Wavelet Transform” Approach

Ngote¹,

Ouassaid²,

Guedira³

et al. 2015

Journal of Electrical Engineering and Technology

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-Induction motors are widely used in industrial processes since they offer a very high degree of reliability. But like any other machine, they are vulnerable to faults, which if left unmonitored, might lead to an unexpected interruption at the industrial plant. Therefore, the condition monitoring of the induction motors have been a challenging topic for many electrical machine researchers. Indeed, the effectiveness of the fault diagnosis and prognosis techniques depends very much on the quality of the fault features selection. However, in induction-motor drives, rotor defects are the most complex in terms of detection since they interact with the supply frequency within a restricted band around this frequency, especially in the no-loaded case. To overcome this drawback, this paper deals with an efficient and new method to diagnose the induction-motor rotor fault based on the digital implementation of the monitoring algorithm based on the association of the Time Synchronous Averaging technique and Discrete Wavelet Transform. Experimental results are presented in order to show the effectiveness of the proposed method. The obtained results are largely satisfactory, indicating a promising industrial application of the combined "Time Synchronous Averaging -Discrete Wavelet Transform" approach.

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Section: -Time-frequency Domain Analysismentioning

confidence: 99%

On the Detection of Induction-Motor Rotor Fault by the Combined “Time Synchronous Averaging-Discrete Wavelet Transform” Approach

Ngote¹,

Ouassaid²,

Guedira³

et al. 2015

Journal of Electrical Engineering and Technology

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“…Note also that stochastic periodic processes are considered by Bennet [1] and called the cyclostationary processes there.…”

Section: Periodically Correlated Sequences Generated By Vector Statiomentioning

confidence: 99%

Interpolation of periodically correlated stochastic sequences

Dubovets’ka¹,

Masyutka

Moklyachuk

2012

Theor. Probability and Math. Statist.

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Abstract. We study the problem of optimal estimation of a linear functional of unknown values of a periodically correlated random sequence from observed values of a sequence with an additive noise. Formulas for calculating the mean square error and spectral characteristic of the optimal linear estimate of a functional are established in the case where the spectral densities are known. The least favorable spectral densities and minimax spectral characteristic of the optimal linear estimate of a functional are found for some classes of admissible spectral densities.

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“…raised cosine) then in an ideal channel exhibiting only a time shift, sampling at the peak will provide the best, intersymbol-interference free, estimate of the symbol. Tutorials on symbol timing are rare but can be found in [5,[7][8][9].…”

Section: Symbol Timing Estimationmentioning

confidence: 99%

Telesonar Testbed Instrument Provides a Flexible Platform for Acoustic Propagation and Communication Research in the 8 – 50 kHz Band

McDonald¹,

Hursky²

2004

AIP Conference Proceedings

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Abstract. The underwater channel remains a difficult medium for transmitting communication signals. Frequent field tests are required for validating models, testing new waveforms and coding schemes, developing link protocols, designing an adaptive multi-mode modem, testing third-party prototype modems, testing a new directional transducer, and developing new DSPefficient algorithms. A modular, flexible, autonomous instrument was designed to easily and inexpensively conduct such field tests. This instrument, called the Telesonar Testbed, was originally designed five years ago to specifically support the Telesonar Program at the Space and Naval Warfare Systems Center, San Diego. It has since taken on a wider role supporting the High-Frequency Initiative, the SignalEx project, and a new project testing Multiple Input/Multiple Output (MIMO) systems. Over the last five years several major design changes have been made, making it smaller, lighter weight, more reliable, and acoustically commandable. This paper will describe the design and features of this instrument which has been the centerpiece of 10 experiments to date. This paper will also apply six carrier estimation and six symbol timing estimators to data received by the Telesonar Testbeds in the KauaiEx and ElbaEx Experiments.

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Statistics of Regenerative Digital Transmission

Cited by 226 publications

References 1 publication

On the Detection of Induction-Motor Rotor Fault by the Combined “Time Synchronous Averaging-Discrete Wavelet Transform” Approach

On the Detection of Induction-Motor Rotor Fault by the Combined “Time Synchronous Averaging-Discrete Wavelet Transform” Approach

Interpolation of periodically correlated stochastic sequences

Telesonar Testbed Instrument Provides a Flexible Platform for Acoustic Propagation and Communication Research in the 8 – 50 kHz Band

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