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Frequency Hopped - Spread Spectrum system

Italian translation: salto di frequenza - sistema di distribuzione dello spettro

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:Frequency Hopped - Spread Spectrum system
Italian translation:salto di frequenza - sistema di distribuzione dello spettro
Entered by: Valeria Faber
Options:
- Contribute to this entry
- Include in personal glossary

11:10 Mar 19, 2007
English to Italian translations [PRO]
Tech/Engineering - Electronics / Elect Eng
English term or phrase: Frequency Hopped - Spread Spectrum system
Contesto: moduli wireless per trasmissione dati (stampante)
Radiofrequenza

Grazie!
Marilina Vanuzzi
Italy
Local time: 16:59
salto di frequenza - sistema di spettro sparso
Explanation:
.

--------------------------------------------------
Note added at 5 min (2007-03-19 11:15:26 GMT)
--------------------------------------------------

nei sistemi wireless ci sono due tipi di sistemi: a salto di frequenza (Frequence hopping) o a spargimento dello spettro (SSS)

--------------------------------------------------
Note added at 6 min (2007-03-19 11:17:03 GMT)
--------------------------------------------------

se preferisci puoi dire **sistema a spettro distribuito**

--------------------------------------------------
Note added at 6 min (2007-03-19 11:17:17 GMT)
--------------------------------------------------

"Spread-spectrum radio communications, long a favorite technology of the military because it resists jamming and is hard for an enemy to intercept, is now on the verge of potentially explosive commercial development. The reason: spread-spectrum signals, which are distributed over a wide range of frequencies and then collected onto their original frequency at the receiver, are so inconspicuous as to be 'transparent.' Just as they are unlikely to be intercepted by a military opponent, so are they unlikely to interfere with other signals intended for business and consumer users -- even ones transmitted on the same frequencies. Such an advantage opens up crowded frequency spectra to vastly expanded use.



--------------------------------------------------
Note added at 7 min (2007-03-19 11:17:58 GMT)
--------------------------------------------------

Spread Spectrum uses wide band, noise-like signals. Because Spread Spectrum signals are noise-like, they are hard to detect. Spread Spectrum signals are also hard to Intercept or demodulate. Further, Spread Spectrum signals are harder to jam (interfere with) than narrowband signals.

--------------------------------------------------
Note added at 8 min (2007-03-19 11:19:03 GMT)
--------------------------------------------------

Frequency hopping systems -- The wideband frequency spectrum desired is generated in a different manner in a frequency hopping system. It does just what its name implies. That is, it "hops" from frequency to frequency over a wide band. The specific order in which frequencies are occupied is a function of a code sequence, and the rate of hopping from one frequency to another is a function of the information rate.

--------------------------------------------------
Note added at 9 min (2007-03-19 11:20:14 GMT)
--------------------------------------------------

http://it.wikipedia.org/wiki/Frequency-hopping_spread_spectr...

--------------------------------------------------
Note added at 10 min (2007-03-19 11:20:58 GMT)
--------------------------------------------------

http://en.wikipedia.org/wiki/Direct-sequence_spread_spectrum

--------------------------------------------------
Note added at 17 min (2007-03-19 11:28:07 GMT)
--------------------------------------------------

naturalmente esistono altri tipi di sistemi (ibridi, con registri o codici), ma oramai si parla prevalentemente di questi.
In questo link trovi ulteriori informazioni sul funzionamento: http://cbdd.wsu.edu/kewlcontent/cdoutput/TR502/page74.htm

--------------------------------------------------
Note added at 50 min (2007-03-19 12:01:03 GMT)
--------------------------------------------------

www.sss-mag.com/ss.html - 29k
cas.et.tudelft.nl/~glas/ssc/techn/techniques.html
searchnetworking.techtarget.com/sDefinition/0,,sid7_gci525695,00.html
Selected response from:

Valeria Faber
Italy
Local time: 16:59
Grading comment
Grazie Valeria, mi sei stata utilissima!
4 KudoZ points were awarded for this answer

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Summary of answers provided
4 +1salto di frequenza - sistema di spettro sparso
Valeria Faber


  

Answers


3 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
frequency hopped - spread spectrum system
salto di frequenza - sistema di spettro sparso


Explanation:
.

--------------------------------------------------
Note added at 5 min (2007-03-19 11:15:26 GMT)
--------------------------------------------------

nei sistemi wireless ci sono due tipi di sistemi: a salto di frequenza (Frequence hopping) o a spargimento dello spettro (SSS)

--------------------------------------------------
Note added at 6 min (2007-03-19 11:17:03 GMT)
--------------------------------------------------

se preferisci puoi dire **sistema a spettro distribuito**

--------------------------------------------------
Note added at 6 min (2007-03-19 11:17:17 GMT)
--------------------------------------------------

"Spread-spectrum radio communications, long a favorite technology of the military because it resists jamming and is hard for an enemy to intercept, is now on the verge of potentially explosive commercial development. The reason: spread-spectrum signals, which are distributed over a wide range of frequencies and then collected onto their original frequency at the receiver, are so inconspicuous as to be 'transparent.' Just as they are unlikely to be intercepted by a military opponent, so are they unlikely to interfere with other signals intended for business and consumer users -- even ones transmitted on the same frequencies. Such an advantage opens up crowded frequency spectra to vastly expanded use.



--------------------------------------------------
Note added at 7 min (2007-03-19 11:17:58 GMT)
--------------------------------------------------

Spread Spectrum uses wide band, noise-like signals. Because Spread Spectrum signals are noise-like, they are hard to detect. Spread Spectrum signals are also hard to Intercept or demodulate. Further, Spread Spectrum signals are harder to jam (interfere with) than narrowband signals.

--------------------------------------------------
Note added at 8 min (2007-03-19 11:19:03 GMT)
--------------------------------------------------

Frequency hopping systems -- The wideband frequency spectrum desired is generated in a different manner in a frequency hopping system. It does just what its name implies. That is, it "hops" from frequency to frequency over a wide band. The specific order in which frequencies are occupied is a function of a code sequence, and the rate of hopping from one frequency to another is a function of the information rate.

--------------------------------------------------
Note added at 9 min (2007-03-19 11:20:14 GMT)
--------------------------------------------------

http://it.wikipedia.org/wiki/Frequency-hopping_spread_spectr...

--------------------------------------------------
Note added at 10 min (2007-03-19 11:20:58 GMT)
--------------------------------------------------

http://en.wikipedia.org/wiki/Direct-sequence_spread_spectrum

--------------------------------------------------
Note added at 17 min (2007-03-19 11:28:07 GMT)
--------------------------------------------------

naturalmente esistono altri tipi di sistemi (ibridi, con registri o codici), ma oramai si parla prevalentemente di questi.
In questo link trovi ulteriori informazioni sul funzionamento: http://cbdd.wsu.edu/kewlcontent/cdoutput/TR502/page74.htm

--------------------------------------------------
Note added at 50 min (2007-03-19 12:01:03 GMT)
--------------------------------------------------

www.sss-mag.com/ss.html - 29k
cas.et.tudelft.nl/~glas/ssc/techn/techniques.html
searchnetworking.techtarget.com/sDefinition/0,,sid7_gci525695,00.html

Valeria Faber
Italy
Local time: 16:59
Specializes in field
Native speaker of: Native in ItalianItalian
PRO pts in category: 339
Grading comment
Grazie Valeria, mi sei stata utilissima!

Peer comments on this answer (and responses from the answerer)
agree  Gianni Pastore: Si, ma potevi pure mettere qualche riferimento, però :)))
38 mins
  -> perché... non bastano? ;-)
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