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Telecommunications and Radio Engineering

Publicado 12 números por año

ISSN Imprimir: 0040-2508

ISSN En Línea: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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A NOVEL IMPLEMENTATION OF SNR ESTIMATION BASED ON LARGE SCALE PROGRAMMABLE LOGIC CIRCUITS

Volumen 78, Edición 15, 2019, pp. 1333-1344
DOI: 10.1615/TelecomRadEng.v78.i15.30
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SINOPSIS

The signal-to-noise ratio (SNR) is a major technical parameter to value the quality of communication system. The research of SNR estimator is still staggering in algorithm improvement and software implementation. In this paper, we proposed an effective method to implement SNR estimator based on hardware logic circuit by calculating the mean and variance of the demodulated envelope signal. The proposed SNR can reflect the channel status in real time, because calculation of data streams and reading/writing buffer can be execute without time intervals via alternating periods of time control. The testing results show that the SNR estimator has a good response to the channel condition under the interference of different noise power. According to the results, it can be found that the approach we proposed can be applied to the physical layer of the communication system, and the method has the significant merits for many modulation schemes and channel models.

REFERENCIAS
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