Solutions manual digital and analog communication systems

INSTRUCTOR SOLUTIONS MANUAL (United States Edition) Digital & Analog Comm Systems 8th Edition, L W Couch, II Full download https://getbooksolutions.com/download/solutions-manual-digital-analog-communication-systems-8thedition-answer-and-script/ Chapter \ 1-1 [ 1-2 cl,+d~ =\{iCIDO) +V'llaOO} ~ §4.ILfJt1',f'(J" \ J U.rin, ~ E.\"f I., ~ ~ ') (1-/), d =i :l,(r ODD) ~ oil-~ (2 ~"1 d,= f;J;; d,+~'1.-= SS~·"e.s ~ PCIl>OO) i- V'J,.~~ r- ('l»b»~ ~ h1 =(56 - =d '1 ( htre ) S H+ ::: t t"e -:: S51tt,/es " :J h7.,p hre = d"'J- kJ~~'{' 1, ~< re ~d~2ht'~ ~hd re.:t('J~DIli,k;): 5"2.BDM,7es Ld· J ::: cnde-"4 At'-ltkf l:r fe.l) atvl d ti, ";,{(S ~ J2 (lIIlles)~ 2,,1, ~;;~ (.s-ll3()N~/e.r) ~cr- -= 1.~ or d =Vff: d =- :; ni.J~ = {2h =; ~ I-.-=- (3o)YB = 112 t[- (1 It): (& ())2 =-~o:::oo!.oIl_ 11 -5 la :::th =12 ~DO) =N.I'!", I 1 -6 Tt1i'al t'C4.d/~ ,(2 " :J h ['1-) :: 1.83 "'I'/~ t>f cove"4g.~:::J,+~,,='I¥-'It/.+, 93:: t'.97IHj 1es f-i.o,(10)I,D,lf.o1 i.::/} '1-; P':fi:O.lj 1j.=flf~o.1 ~ :t~.I - -J"J (O.l) _ 31" L~ 7:;"';J, -I (o.J) -/7'17':4.­ -;r • ~ _ I• (r ) -'4.L.JfI L - " ·/u 11M;}-=: ~ fl :: ~ Pj Ij ~ = ~.l}(l.1u} +{o j}I '73?] :; I C??/6;h J- \1-7 II ~ /~l (1-) :9' i~JlJj /"?-IP{lI):: 1~/l>(;') ~ I Ip Ms I t' P: ~ l'l[ U/~ J{i.F~ oJ"l i '=- B -" 3~o U-z t~ )"8 "3tlJ B ~ Jp~l.[l-l~)] ~ /;1 /11 [if ~j (sIAlMB -q- iJ:: I D J~ (D':: II> Db c= U ( ti(tJ'~:: / *~)J8/b I.,j-fr) ::: c =I:I>~ l~ [lDllQ 1-15 - 'l'1~ Ii)~ ; chars := 110 (a) b := ceil Number of characters available log (chars) ] [ Number of bits required to represent a character log(2) ====> b = B:= 3200 Hz 20 dB Channel bandwidth Signal to noise ratio (b) SNRdB := bits SNRdB SNR :;:;:: C := B 10 10 ==;~===> SNR = 100 (Absolute power ratio) [log (1 + SNR)] log(2) ==> C = 2.131·10 ===> C = 3.044 10 C Channel capacity (bits/sec) C :::::: ­ Channel capacity (chars/sec) b (c) Assuming equally likely characters, information content of each character is: P := - - - - - chars Probability of each character log[~] 1;=-­ 109(2) =========> I = 6.781 bits INSTRUCTOR SOLUTIONS MANUAL (United States Edition) 1 -16 I R : EI~ Digital & Analog Comm Systems 8th Edition, L W Couch, II [()~ 1-' (I + J D~o/I~ ) (S ) J ,,~ / t1.) i1 :: 'B It (a) ~ J:Lt)O-3DlY~ crbD ~ :: 'B ~Jt,'l4 q) R'::.(qOQ) (t4l/i/f) :: 13.1-5 k~/fJ"fr (6] B:: 31t)~ -U;on-='/7oo:1 R:::.V7tJ~(j~91-q) '= 7-5~ 'H kl;cfs!r (c) :B-=- 32 DO'" jDe>=' 2'tbTJ ~ ~~ (;l9~ (I'f 9'f-Jl)=- ~3 35~ki!J.!r [i 17=-J Ur\c.oJ~J Jt4+o 1~ ~ t; ~ sL;ff re1lsto­ l!ti,ff' ,~ b~-h ~t "-h ~) .,. L -,~-r .L, J.;, L.-r-l COd~J :l~t~ o~t ]r, f 1-18 - x - x 1 ga - gb k := := v - gb - ga - gb - x x - ga - gb - - ga x sf,,(j Y(3,rrey - (S~/ff ()lfi- ~ ~',Is Input vector Gain vector, mod2 adder Gain vector, mod2 adder length(ga) - k : = length (x) - := X v k+length(ga)-l k k := length (x) + length (ga) - length{x) + length (ga) - v : = i : = length (v) - length (ga) k j := length (ga) - k sa i sb := i V ~ [9b length(gb)-j-l v ] j+i j sb s i i := out length (x) := i - S i For s sa := i i xT = (I ====> out T = (1 1 1) 1 0 Ill) := i+1 sb i 4t (, 1i;"e.)