peredacha informatsii

PPTX 20 sahifa 2,0 MB Bepul yuklash

20 sahifa

FaylHub.uz

Telegram orqali yuklab olish

Hajm 2,0 MB

Fayl turi PPTX

Sahifalar 20

Yangilangan Dek 2025

Sahifa ko'rinishi (5 sahifa)

Pastga aylantiring 👇

1 / 20

powerpoint presentation peredacha informatsii nargiza mamatova 01 protsessi kodirovaniya i dekodirovaniya 02 pomexi i shum pri peredache 03 informatsionnie kanali i media plan: metodi sjatiya dannix metodi sjatiya dannix, kak rle, effektivni dlya izobrajeniy s bolshimi odnorodnimi oblastyami; arifmeticheskoe kodirovanie dostigaet visokoy kompressii; sjatie s poteryami (mpeg, mp3) umenshaet razmer faylov, podxodit dlya striminga. obrabotka rechi i zvuka peredacha informatsii po audiokanalam ispolzuet modulyatsiyu (am, fm, ofdm) v veshanii i sotovoy svyazi (5g >1 gbit/s). kodirovanie (turbokodi, ldpc) povishaet pomexoustoychivost (oshibki 1 mbit/s). obrabotka rechevogo signala (lpc, spektralnoe vichitanie, filtr vinera) povishaet razborchivost rechi, uluchshaya otnoshenie signal/shum na 15-20 db v raznix usloviyax (shumnie pomesheniya, konferents-svyaz) zashita informatsii pri peredache zashishyonnaya peredacha dannix po protokolu tls 1.3 mejdu serverami aws v londone i frankfurte s ispolzovaniem 256-bitnogo aes shifrovaniya i 4096-bitnogo rsa obmena klyuchami dlya konfidentsialnoy finansovoy informatsii. peredacha dannix cherez vpn (openvpn) s 2048-bitnim obmenom klyuchami diffi-xellmana mejdu ustroystvami …

2 / 20

arnie sputniki). naprimer, data-tsentri kremnievoy dolini polagayutsya na visokoskorostnie seti dlya effektivnogo obmena dannimi mejdu serverami. perenos biologicheskoy informatsii perenos informatsii v ekosistemax osushestvlyaetsya razlichnimi mexanizmami: krugovorot pitatelnix veshestv, potok energii i signalnoe povedenie. propusknaya sposobnost kanala i teoriya kodirovaniya teoriya kodirovaniya, kodi xemminga (7,4), kodi rida-solomona, svertochnie kodi, turbo-kodi, nizkoplotnostnie kodi proverki na chetnost (ldpc), obnarujenie i korrektsiya oshibok, dekodirovanie minimalnogo rasstoyaniya, granitsa gilberta-varshamova, energeticheskiy viigrish kodirovaniya (db), peredacha dannix (naprimer, cherez atlanticheskiy okean). propusknaya sposobnost kanala, teorema shennona (1948), bit/s, ogranicheniya polosi propuskaniya (gts), shum (otnoshenie signal/shum), kodi korrektsii oshibok, teorema kotelnikova-shennona, sjatie dannix, istochnik informatsii (naprimer, peredatchik v londone). sjatie izobrajeniy i video jpeg, mpeg-4, h.264/avc — kodeki so sjatiem s poteryami dlya izobrajeniy i video; umenshayut razmer faylov (naprimer, s 10 mb do 1 mb) s pomoshyu takix metodov, kak diskretnoe kosinusnoe preobrazovanie (dct) i otsenka dvijeniya, vliyaya na kachestvo peredacha tsifrovix izobrajeniy zavisit ot formatov …

3 / 20

i kogerentnoe detektirovanie; kodi korrektsii oshibok (naprimer, rida-solomona) vajni dlya tochnogo vosstanovleniya dannix na zashumlyonnix kanalax; otnoshenie signal/shum (ossh) sushestvenno vliyaet na proizvoditelnost demodulyatsii. osnovi teorii informatsii teoriya informatsii izmeryaet entropiyu shennona (h) v bitax, otsenivaya umenshenie neopredelyonnosti cherez teoremi kodirovaniya istochnika, vliyaya na algoritmi sjatiya dannix, takie kak kodirovanie xaffmana, v kanalax s ogranichennoy propusknoy sposobnostyu (naprimer, wi-fi 2,4 ggts) osnovi obrabotki signalov effektivnost peredachi informatsii zavisit ot propusknoy sposobnosti kanala (teorema shennona-xartli), urovnya shumov (snr, ber) i ispolzuemix kodov (xemminga, rida-solomona) dlya korrektsii oshibok. prakticheskoe primenenie – ot sotovoy svyazi (gsm, lte) do sputnikovoy (gps, goes), otrajaya raznoobrazie sred i protokolov osnovi obrabotki signalov vklyuchayut preobrazovaniya fure (bpf), filtratsiyu (kix, bix) i veyvlet-analiz, vajnie dlya obrabotki signalov v audio (22,05 kgts), izobrajenii (prostranstvennie chastoti) i biomeditsine (ekg, eeg) setevie protokoli i standarti 01 02 sales 1st qtr 2nd qtr 100 0 sales 1st qtr 2nd qtr 100 0 …

4 / 20

5 / 20

Ko'proq o'qimoqchimisiz?

Barcha 20 sahifani Telegram orqali bepul yuklab oling.

To'liq faylni yuklab olish

"peredacha informatsii" haqida

powerpoint presentation peredacha informatsii nargiza mamatova 01 protsessi kodirovaniya i dekodirovaniya 02 pomexi i shum pri peredache 03 informatsionnie kanali i media plan: metodi sjatiya dannix metodi sjatiya dannix, kak rle, effektivni dlya izobrajeniy s bolshimi odnorodnimi oblastyami; arifmeticheskoe kodirovanie dostigaet visokoy kompressii; sjatie s poteryami (mpeg, mp3) umenshaet razmer faylov, podxodit dlya striminga. obrabotka rechi i zvuka peredacha informatsii po audiokanalam ispolzuet modulyatsiyu (am, fm, ofdm) v veshanii i sotovoy svyazi (5g >1 gbit/s). kodirovanie (turbokodi, ldpc) povishaet pomexoustoychivost (oshibki 1 mbit/s). obrabotka rechevogo signala (lpc, spektralnoe vichitanie, filtr vinera) povishaet razborchivost rechi, uluchshaya otnoshenie signal/shum na 15-2...

Bu fayl PPTX formatida 20 sahifadan iborat (2,0 MB). "peredacha informatsii"ni yuklab olish uchun chap tomondagi Telegram tugmasini bosing.

Teglar: peredacha informatsii PPTX 20 sahifa Bepul yuklash Telegram