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• Spread_spectrum abstract "In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g. an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. These techniques are used for a variety of reasons, including the establishment of secure communications, increasing resistance to natural interference, noise and jamming, to prevent detection, and to limit power flux density (e.g. in satellite downlinks).Spread-spectrum telecommunicationsThis is a technique in which a telecommunication signal is transmitted on a bandwidth considerably larger than the frequency content of the original information. Frequency hopping is a basic modulation technique used in spread spectrum signal transmission.Spread-spectrum telecommunications is a signal structuring technique that employs direct sequence, frequency hopping, or a hybrid of these, which can be used for multiple access and/or multiple functions. This technique decreases the potential interference to other receivers while achieving privacy. Spread spectrum generally makes use of a sequential noise-like signal structure to spread the normally narrowband information signal over a relatively wideband (radio) band of frequencies. The receiver correlates the received signals to retrieve the original information signal. Originally there were two motivations: either to resist enemy efforts to jam the communications (anti-jam, or AJ), or to hide the fact that communication was even taking place, sometimes called low probability of intercept (LPI).Frequency-hopping spread spectrum (FHSS), direct-sequence spread spectrum (DSSS), time-hopping spread spectrum (THSS), chirp spread spectrum (CSS), and combinations of these techniques are forms of spread spectrum. Each of these techniques employs pseudorandom number sequences — created using pseudorandom number generators — to determine and control the spreading pattern of the signal across the allocated bandwidth. Ultra-wideband (UWB) is another modulation technique that accomplishes the same purpose, based on transmitting short duration pulses. Wireless standard IEEE 802.11 uses either FHSS or DSSS in its radio interface.".
• Spread_spectrum wikiPageExternalLink rsi8100.html.
• Spread_spectrum wikiPageExternalLink frequency_hopping.html.
• Spread_spectrum wikiPageExternalLink UnlicensedWireless.
• Spread_spectrum wikiPageExternalLink index.html.
• Spread_spectrum wikiPageExternalLink A-short-history-of-spread-spectrum?Ecosystem=microwave-rf-design.
• Spread_spectrum wikiPageExternalLink patents?vid=USPAT2292387.
• Spread_spectrum wikiPageExternalLink deccan_article.html.
• Spread_spectrum wikiPageExternalLink showFreeBOG.aspx?Lang=0&bogno=114.
• Spread_spectrum wikiPageExternalLink cdma.html.
• Spread_spectrum wikiPageID "41734".
• Spread_spectrum wikiPageRevisionID "596768411".
• Spread_spectrum hasPhotoCollection Spread_spectrum.
• Spread_spectrum subject Category:Channel_access_methods.
• Spread_spectrum subject Category:Multiplexing.
• Spread_spectrum subject Category:Radio_modulation_modes.
• Spread_spectrum subject Category:Radio_resource_management.
• Spread_spectrum type Ability105616246.
• Spread_spectrum type Abstraction100002137.
• Spread_spectrum type Attribute100024264.
• Spread_spectrum type ChannelAccessMethods.
• Spread_spectrum type Cognition100023271.
• Spread_spectrum type Know-how105616786.
• Spread_spectrum type Manner104928903.
• Spread_spectrum type Method105660268.
• Spread_spectrum type Property104916342.
• Spread_spectrum type PsychologicalFeature100023100.
• Spread_spectrum type RadioModulationModes.
• Spread_spectrum comment "In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g. an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth.".
• Spread_spectrum label "Espalhamento espectral".
• Spread_spectrum label "Espectro ensanchado".
• Spread_spectrum label "Frequenzspreizung".
• Spread_spectrum label "Spread spectrum".
• Spread_spectrum label "Spread spectrum".
• Spread_spectrum label "Spread spectrum".
• Spread_spectrum label "Systemy szerokopasmowe".
• Spread_spectrum label "Étalement de spectre".
• Spread_spectrum label "Методы расширения спектра".
• Spread_spectrum label "スペクトラム拡散".
• Spread_spectrum label "扩频".
• Spread_spectrum sameAs Rozprostřené_spektrum.
• Spread_spectrum sameAs Frequenzspreizung.
• Spread_spectrum sameAs Διασπορά_φάσματος.
• Spread_spectrum sameAs Espectro_ensanchado.
• Spread_spectrum sameAs Étalement_de_spectre.
• Spread_spectrum sameAs Spektrum_tersebar.
• Spread_spectrum sameAs Spread_spectrum.
• Spread_spectrum sameAs スペクトラム拡散.
• Spread_spectrum sameAs Spread_spectrum.
• Spread_spectrum sameAs Systemy_szerokopasmowe.
• Spread_spectrum sameAs Espalhamento_espectral.
• Spread_spectrum sameAs m.0bgmp.
• Spread_spectrum sameAs Q958957.
• Spread_spectrum sameAs Q958957.
• Spread_spectrum sameAs Spread_spectrum.
• Spread_spectrum wasDerivedFrom Spread_spectrum?oldid=596768411.
• Spread_spectrum isPrimaryTopicOf Spread_spectrum.