Continuously adaptive echo cancellers

Mackechnie, L.

doi:10.1049/el:19700044

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2016

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Cited by 4 publications

(2 citation statements)

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“…Up-conversion fiber lasers can efficiently convert infrared radiation into visible light at room temperature [6][7][8]. By the invention of D-shape dual core up-conversion fibers, highpower lasers having wide aperture can also be used as pump sources.…”

Section: Introductionmentioning

confidence: 99%

Single-step growth of InGaAsP/InP laser array on patterned InP substrate

Rakovics

Serényi

Püspöki

2004

Physica E: Low-dimensional Systems and Nanostructures

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Section: Introductionmentioning

confidence: 99%

Single-step growth of InGaAsP/InP laser array on patterned InP substrate

Rakovics

Serényi

Püspöki

2004

Physica E: Low-dimensional Systems and Nanostructures

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“…For this reason we can assume that the equivalent discrete-time coupling-channel is linear 3. The symbol F {·} denotes the continuous-time Fourier transform.…”

mentioning

confidence: 99%

Design Criteria for FIR-Based Echo Cancellers

Zabini

Pasolini

Andrisano

2016

IEEE Trans. on Broadcast.

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The most relevant impairment experienced by on-channel repeaters (OCRs) in single frequency networks scenarios is the presence of a coupling-channel between the transmitting and receiving antennas, that generates unwanted echoes. This phenomenon causes a degradation of the repeated signal and, above all, could lead to the instability of OCRs, owing to the positive feedback that could result. For this reason, OCRs are usually equipped with echo canceller units, aimed at removing the coupling contributions. In this paper, we consider a realistic OCR setup and we analytically derive proper design criteria for echo-cancellers, showing the role of system parameters and implementation aspects on their performance. Here, in particular, we investigate the joint effect of the estimation noise and the finite precision arithmetic of digital systems, the system sensitivity to different design parameters and the relation between the echo-cancelling performance and the probability of instability.Index Terms-Echo canceller, on-channel repeater, single frequency network, relay, stability.

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High-speed adaptive echo canceller

Höge

1974

Electron. Lett.

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Continuously adaptive echo cancellers

Cited by 4 publications

References 3 publications

Single-step growth of InGaAsP/InP laser array on patterned InP substrate

Single-step growth of InGaAsP/InP laser array on patterned InP substrate

Design Criteria for FIR-Based Echo Cancellers

High-speed adaptive echo canceller

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