翻訳と辞書 Words near each other ・ sponge ・ spoo ・ spoof ・ spoofing ・ spooge ・ spool ・ spool file ・ spooler ・ spoolview ・ spray ・ spread spectrum communications ・ spreadsheet ・ spring ・ sprint ・ sprintnet ・ sprite ・ sprocket feed ・ sps ・ spss ・ spss, inc. Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク spread spectrum communications ： FOLDOC spread spectrum communications (Or "spread spectrum") A technique by which a signal to be transmitted is modulated onto a {pseudorandom}, noise-like, wideband carrier signal, producing a transmission with a much larger bandwidth than that of the data {modulation}. Reception is accomplished by {cross correlation} of the received wide band signal with a synchronously generated replica of the carrier. Spread-spectrum communications offers many important benefits: Low probability of detection, interception or determination of the transmitter's location. To an observer who does not possess information about the carrier, the transmission is indistinguishable from other sources of noise. High immunity against interference and jamming (intentional interference). The presence of (narrowband) interference signals only decreases the channel's signal-to noise ratio and therefore its {error rate}, which can be dealt with by using {error correcting codes}. A jammer would have to use w スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.