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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F09%3APU81517%21RIV10-MSM-26220___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
The paper is focused on possibility of digitalized voice transmission through radio amateur VHF band. Choosing of suitable digital modulation and sound coder were discussed. Quality test of speech codec Speex depending on bit-error-rate is presented. Simulation of theoretical minimal SNR for DBPSK modulation was performed in Matlab. Presented system was analyzed with Rician and Rayleigh fading channel. The maximal theoretical range of the presented system was calculated. The paper is focused on possibility of digitalized voice transmission through radio amateur VHF band. Choosing of suitable digital modulation and sound coder were discussed. Quality test of speech codec Speex depending on bit-error-rate is presented. Simulation of theoretical minimal SNR for DBPSK modulation was performed in Matlab. Presented system was analyzed with Rician and Rayleigh fading channel. The maximal theoretical range of the presented system was calculated.
dcterms:title
The Voice Transmission via Speex Codec and DBPSK Modulation through narrow Band Fading Channel The Voice Transmission via Speex Codec and DBPSK Modulation through narrow Band Fading Channel
skos:prefLabel
The Voice Transmission via Speex Codec and DBPSK Modulation through narrow Band Fading Channel The Voice Transmission via Speex Codec and DBPSK Modulation through narrow Band Fading Channel
skos:notation
RIV/00216305:26220/09:PU81517!RIV10-MSM-26220___
n4:aktivita
n14:Z
n4:aktivity
Z(MSM0021630513)
n4:dodaniDat
n9:2010
n4:domaciTvurceVysledku
n8:1726684 n8:1280856 n8:4514521
n4:druhVysledku
n18:D
n4:duvernostUdaju
n10:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
349799
n4:idVysledku
RIV/00216305:26220/09:PU81517
n4:jazykVysledku
n5:eng
n4:klicovaSlova
VHF, speech codec Speex, DBPSK, Rician, Rayleigh, fading.
n4:klicoveSlovo
n6:DBPSK n6:Rayleigh n6:speech%20codec%20Speex n6:VHF n6:Rician n6:fading.
n4:kontrolniKodProRIV
[96B75B78046B]
n4:mistoKonaniAkce
Portorož
n4:mistoVydani
Portorož, Slovenija
n4:nazevZdroje
ERK 2009
n4:obor
n12:JA
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n9:2009
n4:tvurceVysledku
Šebela, Radek Slezák, Josef Prokopec, Jan
n4:typAkce
n20:WRD
n4:zahajeniAkce
2009-09-21+02:00
n4:zamer
n11:MSM0021630513
s:issn
1581-4572
s:numberOfPages
4
n19:hasPublisher
ERK2009
n17:organizacniJednotka
26220