EECE 442 Exam 2, Fall 2003

American University of Beirut · Communication Systems · 10 pages

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EECE 442 Exam 2, Fall 2003, page 1

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Du'z ft be SebuT 5H ,W0.1003-04 Froblem #1 Tk béé rat. ee FCM Es: Bong Samp ling tah xty L | | | = ax ¢o00x4 (A5é= zg = 6% 200 bibs face, | 1/7 samples (aI~ wu. DM needs, LA pneple y Gy be. ao-high an possible th order & puitify Mee tite. ef Zito zien buh, Hence, Sinoe. Ha fplrcemutl of Pom ( by DM skull rel Cal G ¢ highrtrani IY 44 bondi: dh, Han. Me. sermglirg ratte. Hal ds needed. DM | “s SY, 000 Semple pee. = SxMy geal (ale This c's LG He bz (dee ua PM ahd. fores__teaslts le, om of Ah. Same Cans miss bandit. agen FCM, Fioblem #2 Te tendidtin. that nesche te ba. sabicfredte avert. slope Vitload disltsrtox 45! secrbtesnermserp-maparse AY TUAX AME) | = ppatlin um sGpe pie me Pape &s dt lal | War ini i wnt) _ loo _ ols la A = Soa 50 serpy, Bt pe. Lpdedl a: sate Hal. cau: ba toad ts gun Co fhe. Vim vale, 48, $000 sample fee « Mente | PY f” He Senplily der 64, 000 semplay, Ce S200 | Sampler fuce Shick tan be Leash tn preriiple beck pit Ate pracktce, Kan A naki'muim. Salary. cn Ke_Crene— ulssin bandwill 13 byo0e - 8000 = FE, 200 Hz oy 56 Kz. i Tipblia#& 3 Fort Wael sevirg ta the. LranSmfE4 a hondily tpual 50 kK ie © be. ackiwed, tle hotel! _ 64 200 - 62,000 = (4,009 samples flec.: ls "joe = rma pak LINILIM slope. ff mle = 5 =pA= [00 = 7/4. mV. /4, 000 Th. mini nteam a heute. brans nivsion bardused Me's /akKHz Wh carrtepanche LB 14 Kesamplos [dex fente, fee Samp lig rile ts epual lo LFS a Ngee st vale f sempliry: Te Saingling vate of /. 25x My geist rate eo nd Se bi, forse ae OM % geilehy Ke fact thal we mb tare | live pra iaatin brclo, Netually, cx DIM Ke Sanpliig | tats needs t be much higher Her He. Myg ee st ial, AL th | A G oblacr avery tagh correla sx. betes. t0y ach} ard fence. prove 2 vesy salle dy name’ range of the ateal Samples Fa blem #4 m, (t) = 4. cos (go Te/ + of cos (2007€) ; _ + m, @) bor 060 (loot) + A Ce) (2007FZ), M, (oa) AN — AX AW aw ° [oof ool M,(~) US emp ¢t Chan U5 fee. tarde Ue M, (ce): his means feet m, A) Kaw a smoother Lins Lain behav vor fhon M, Fe)- Pheer, he Wak nil slipe af 14, 00 “s small then He. taprn'ntem stipe fm (). y A am lt Mas) wig “He and he Z2 mar a4 |. we Con concltde— Mat siquad my, Ce) (pects 2 Smeller— AZ Wn de $ lope WarLoad. Astartux., v/a fob abi retire pracedure tan elae be- teed dm @ dt =|t2er se (to0rt) + 4od H s'n(20oTd) apie = 4 sen (100 7k) + si(20or)| dt Obvie sly, Ke Maximum value of |Luo/[de / Ly Smaller fhan fhe. Maks' mum value of | L m, CO pp, od. M4) Opel a smollr hh Ge avd spe wer brad dylan, | ! | | frobam #6 | cM A DPCM A 5} | Cb he the. tambo bobs por comple te PCM | _ #4 _ gh _#-/ => a= and “Spm = = : fo a Vace E¢pral ot tke bart tl ack. Sampled. ate He egunit vale With 2 5¢ pct huky, lhe bet rate ts feduced fram C¢cw tit [Aer t5 56000 bets (pec. 6/9 (uA), =e Pem DR)* Beeeved. mr CW prem = balay = 4 (Bs 2 ( 1, )/# Lea) 4 Dlypey = Lem /3 _ / >, 4 = 4. a Pha F: ln His problen DPCM Es copelt f achiewirs 2 SNR citpravement tod bet (Xe redution ver PCM, Fie bem #8 A posh ble lay by eshich Me Predictor Core $f viewhs f- ADPCM ot Me receve- can be. oblained “consists Va encoding and. | transmit on Liha. te pepdtted. prelitior todffistaite | at the Lrans miter s Mert. ttc hed ohh; ints are. bbe | eroded. andtived ax Co frists ol. prodiity srade at | The (eceNVele This precdice- leseity of Cneyer, Lee an tatyeas | ya he. Lransiry sity bik rale Svef- Mat abl tned. sa DPCM, “Yis psa his ad. vaklape.. gt) = ect [-—* )} | Tie mathed Pilly marimizes, he up ndput Ev x) eKpesedlab: GR) — | 200" nd mabes Kis E[n't] Es ke meeps of the pete 9 bb). Honee, wl E [iw T a =kT, a eel” vw) 7 yoke be tne “a ch hunts eed, Ha | Efnrte)] = a Lieae sh ge >= 7 i) =0, fr t<o —Tyt o£ 7 6 /10 yb 2, fer EY AT. ge) : £ ra] T AT 2) Eln-]= x Ae [a My = hy 9h g 0 fo biperag ty) => H(v) =k F(w)- <6 _ > e/n ‘o] = Peck x iL | De ea ite J fio oblem #10 Since. fhe. Clansnuss(n- és baseband binary Lean | PNRZ Wi Kh cingular pills et, and ttaee. fhe. Channel | cs A dheal and Ane Hon he- pected ptllad Aepecnce | ot Ke Milehed. fut impel ate! cerregpardige CoO ol Con be. (oprisentad a Ta matihed, filttr cutee 28 (see. femark. 4, page 7) ; T s 7 x. S 4 x SL gech abot Hot ler Siti baa 0 fhe y ts Moe. Z: odd Wiz watched LM, oto i ala One. (sae lleg from He An sly oblacned fm the opi Correeptrad xp Fa angle Lapa pebiv-ard. sb-ac ach offetid by er ed fos. Monte, fle. £8 ve LSI tie the matched fret