Digital generator of corona noise on power line carrier channels

Burrascano, Pietro; Cristina, S.; D’Amore, M.

doi:10.1109/61.193860

Cited by 14 publications

(8 citation statements)

References 2 publications

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“…A few corona noise models are present in the literature [13,[18][19][20]: in this article, the model proposed in [19,20] is considered. Corona noise, as a random signal, is characterized equivalently through its autocorrelation function or its power spectrum.…”

Section: Corona Noise Modelmentioning

confidence: 99%

“…In low-or medium-voltage power grids, several noise sources can be found, such as, for example [11], (i) nonstationary colored thermal noise with power spectral density decreasing as the frequency increases, (ii) periodic asynchronous impulse noise related to switching operations of power supplies, (iii) periodic synchronous impulse noise mainly caused by switching actions of rectifier diodes, and 2 EURASIP Journal on Advances in Signal Processing (iv) asynchronous impulse noise [12]. On the other hand, the HV power line channel is also limited by disturbances produced by events outside the transmission channel such as, for example, atmospheric phenomena, lightning [13], or disturbances originating within the system such as network switching [10], impulse noise [14][15][16][17], and corona phenomena [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…First, we will introduce the linear predictive detection scheme considering a general model for the colored noise process. As case studies, we will also analyze the performance of the proposed receiver considering colored background noise for LV power lines and corona noise [19,20] for HV power lines.…”

Section: Introductionmentioning

confidence: 99%

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Linear Predictive Detection for Power Line Communications Impaired by Colored Noise

Pighi

Raheli

2007

EURASIP J. Adv. Signal Process.

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Robust detection algorithms capable of mitigating the effects of colored noise are of primary interest in communication systems operating on power line channels. In this paper, we present a sequence detection scheme based on linear prediction to be applied in single-carrier power line communications impaired by colored noise. The presence of colored noise and the need for statistical sufficiency requires the design of an optimal front-end stage, whereas the need for a low-complexity solution suggests a more practical suboptimal front-end. The performance of receivers employing both optimal and suboptimal front-ends has been assessed by means of minimum mean square prediction error (MMSPE) analysis and bit-error rate (BER) simulations. We show that the proposed optimal solution improves the BER performance with respect to conventional systems and makes the receiver more robust against colored noise. As case studies, we investigate the performance of the proposed receivers in a low-voltage (LV) power line channel limited by colored background noise and in a high-voltage (HV) power line channel limited by corona noise.

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Section: Corona Noise Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Linear Predictive Detection for Power Line Communications Impaired by Colored Noise

Pighi

Raheli

2007

EURASIP J. Adv. Signal Process.

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“…la,b. The digital signal characteristics of the corona noise that occurs on high-voltage is injected and received by the sending device (SD) and the transmission line carrier channels [2].…”

Section: Introductionmentioning

confidence: 99%

Digital transmission performance of carrier channels on distribution power line networks

D’Amore¹,

Sarto²

1997

IEEE Trans. Power Delivery

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The analysis of the transmitting features of wire-to-ground and wire-to-wire carrier channels on power distribution networks is performed both in the frequency- and in the time-domain. A new formulation of the lossy ground return parameters is considered, which applies in a wide frequency-range and in case of poorly conductive sail. The sensitivity of the frequency-spectra and longitudinal profiles of the transmitted voltages to the distribution system configuration, load termination and ground resistivity is investigated. The eye-diagram approach is used in order to ascertain the transmission quality of carrier channels on tree- and mesh-type networks, in case of high capacity digital signals

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“…Corona noise, as a random signal, is characterized equivalently through its autocorrelation function or its frequency spectrum. To this purpose, the corona noise spectrum is generated by a method that takes into account the generation phenomena of corona currents injected in the conductors and the propagation along the line [20], [21]. This spectrum is utilized to synthesize an autoregressive (AR) digital filter [17], whose output is described by the expression…”

Section: Corona Noise Modelmentioning

confidence: 99%

Linear Predictive Detection for Power Line Communications Impaired by Colored Noise

Pighi

Raheli

2006

2006 IEEE International Symposium on Power Line Communications and Its Applications

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Abstract-Robust detection algorithms capable of mitigating the effects of colored noise are of primary interest in communication systems operating on power line channels. In this paper, we present a sequence detection scheme based on linear prediction to be applied to single carrier power line communication impaired by colored Gaussian noise. The proposed solution improves the Bit Error Rate (BER) performance with respect to a conventional state-of-the-art system and makes the receiver more robust against colored noise. As a case study, we investigate the performance of the proposed receiver in a high-voltage power line channel limited by corona noise. For narrowband applications in power lines, single carrier modulations may be adopted for their simplicity, based on quadrature amplitude modulation (QAM) or other modulation formats. However, in broadband applications strong colored noise sources can severely limit the performance of single carrier systems and demand for adequate signal processing schemes. I. INTRODUCTIONIn this paper, we propose a single carrier PLC scheme based on linear prediction and multidimensional coding, which exhibits good improvements, in terms of bit error rate (BER) performance, with respect to a state-of-the-art industrial solution. The linear predictive approach is a valuable and general technique that can be used every time a communication system has to cope with colored noise [7], provided that a correct statistical information on the noise is available at the receiver. First, we will introduce the linear predictive detection scheme considering a general model for the colored noise process.

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Digital generator of corona noise on power line carrier channels

Cited by 14 publications

References 2 publications

Linear Predictive Detection for Power Line Communications Impaired by Colored Noise

Linear Predictive Detection for Power Line Communications Impaired by Colored Noise

Digital transmission performance of carrier channels on distribution power line networks

Linear Predictive Detection for Power Line Communications Impaired by Colored Noise

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