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the (26), spread (15), gain (12), spectrum (12), system (10), #process (9), wikipedia (8), this (7), cdma (7), page (5), article (5), edit (5), interference (5), contents (4), search (4), and (4), articles (4), references (4), signal (4), processing (4), modulation (4), noise (4), frequency (4), dsss (4), main (4), 100 (4), hide (4), move (4), sidebar (4), view (3), code (3), text (3), additional (3), february (3), 2024 (3), all (3), from (3), can (3), help (3), history (3), bandwidth (3), expressed (3), ratio (3), that (3), same (3), log (3), tools (3), language (2), toggle (2), table (2), mobile (2), contact (2), about (2), privacy (2), policy (2), terms (2), may (2), using (2), you (2), non (2), use (2), was (2), with (2), categories (2), stub (2), needing (2), telecommunications (2), related (2), adding (2), information (2), digital (2), communication (2), also (2), power (2), major (2), aka (2), schemes (2), hopping (2), direct (2), sequence (2), more (2), 2016 (2), performance (2), does (2), resistance (2), against (2), narrowband (2), not (2), unspread (2), other (2), khz (2), decibels (2), learn (2), sources (2), citations (2), appearance (2), upload (2), file (2), changes (2), links (2), read (2), create (2), account (2), donate (2), menu (2), add, topic, cookie, statement, statistics, developers, conduct, legal, safety, contacts, disclaimers, available, under, apply, site, agree, registered, trademark, profit, organization, wikimedia, foundation, inc, creative, commons, attribution, sharealike, license, rendered, parsoid, last, edited, utc, hidden, stubs, retrieved, https, org, index, php, title, process_gain, oldid, 1206444532, missing, waveform, statistical, multiplexing, see, low, probability, intercept, rake, receiver, psd, spectral, density, near, far, problem, chip, pseudorandom, concepts, verizon, qualcomm, 2000, cdma2000, cdmaone, cellular, dect, cordless, phones, bluetooth, glonass, galileo, gps, nasa, space, network, implementations, scdma, thss, time, css, chirp, fhss, methods, commercial, division, multiple, access, communications, deshmukh, sanjay, bhosle, udhav, 178, 1016, procs, 207, doi, procedia, computer, science, evaluation, different, sinusoidal, modulating, peak, deviation, where, displaystyle, cfrac, 5b_, delta, unlike, conventional, however, have, certain, subject, hence, improved, note, reduce, effects, wideband, thermal, shown, has, exactly, bit, error, behavior, format, thus, awgn, channel, without, requires, transmitter, things, being, equal, additive, white, gaussian, usually, for, example, numerical, would, 1000, 000, baseband, research, suggests, one, important, factors, making, decisions, over, jamming, environment, how, when, remove, message, please, unsourced, material, challenged, jstor, scholar, books, newspapers, news, find, removed, reliable, improve, needs, free, encyclopedia, wikidata, item, projects, printable, version, download, pdf, print, export, switch, legacy, parser, get, shortened, url, cite, permanent, link, what, here, general, actions, english, talk, top, personal, special, pages, recent, community, portal, contribute, random, current, events, navigation, jump, content,

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process gain wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 references toggle the table of contents process gain 1 language 中文 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia this article needs more citations please help improve this article by adding citations to reliable sources unsourced material may be challenged and removed find sources process gain news newspapers books scholar jstor february 2024 learn how and when to remove this message resistance of spread spectrum system against narrowband interference in a spread spectrum system the process gain or processing gain is the ratio of the spread or rf bandwidth to the unspread or baseband bandwidth research suggests that it is one of the important factors in making decisions over the performance of system in jamming environment 1 it is usually expressed in decibels db for example if a 1 khz signal is spread to 100 khz the process gain expressed as a numerical ratio would be 100 000 1000 100 or in decibels 10 log 10 100 20 db note that process gain does not reduce the effects of wideband thermal noise it can be shown that a direct sequence spread spectrum dsss system has exactly the same bit error behavior as a non spread spectrum system with the same modulation format thus on an additive white gaussian noise awgn channel without interference a spread system requires the same transmitter power as an unspread system all other things being equal unlike a conventional communication system however a dsss system does have a certain resistance against narrowband interference as the interference is not subject to the process gain of the dsss signal and hence the signal to interference ratio is improved in frequency modulation fm the processing gain can be expressed as g p 1 5 b n δ f 2 w 3 displaystyle g_ text p cfrac 1 5b_ text n delta f 2 w 3 where g p is the processing gain b n is the noise bandwidth δ f is the peak frequency deviation w is the sinusoidal modulating frequency references edit deshmukh sanjay bhosle udhav 2016 performance evaluation of spread spectrum system using different modulation schemes procedia computer science 85 178 doi 10 1016 j procs 2016 05 207 v t e spread spectrum in digital communications main articles spread spectrum code division multiple access cdma history commercial use more spread spectrum methods direct sequence spread spectrum dsss frequency hopping spread spectrum fhss chirp spread spectrum css time hopping spread spectrum thss cdma schemes w cdma td cdma td scdma ds cdma fh cdma mc cdma major implementations space network nasa gps galileo glonass bluetooth cordless phones dect cellular ev do mobile is 95 aka cdmaone cdma2000 aka is 2000 also qualcomm verizon major concepts pn pseudorandom noise code chip near far problem power spectral density psd process gain rake receiver low probability of intercept see also digital communication modulation statistical multiplexing waveform this article related to telecommunications is a stub you can help wikipedia by adding missing information v t e retrieved from https en wikipedia org w index php title process_gain oldid 1206444532 categories signal processing telecommunications stubs hidden categories articles needing additional references from february 2024 all articles needing additional references all stub articles this page was last edited on 12 february 2024 at 04 58 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents process gain 1 language add topic