proakis数字通信第四版及习题解答

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1、thCorrectionstoDigitalCommunications,4Edition1.Page31,Equation(2.1-54)Firstline:ylinsteadofy2Secondline:gninsteadofg12.Page163,Equation(4.2-30)∞shouldbe:s(t)=ao/2+Σk=13.Page163,Equation(4.2-31)Tshouldbe:ak=(2/T)∫s(t)cos2πkt/Tdt,k>00Tbk=(2/T)∫s(t)sin2πkt/Tdt,k>104.Page178,7linesfromthetopshoul

2、dbe:sqrt(2ε)insteadofεsqrt(2)5.Page238,Equation(5.1-19)shouldbe:h(T-τ)insteadofh(t-τ)6.Page238,twolinesbelowEquation(5.1-20)22shouldbe:y(T)insteadofy(t)nn7.Page244,Equation(5.1–45)shouldbe:m=1,2,…M8.Page245,Equation(5.1-48)shouldbe::sqrt(εb)insteadofsqrt(εn)9.Page309,Equation(5.4-39)R1sqrt(2ε

3、s/N0)insteadofsqrt(2εsR1/N0)10.Page318,Equation(5.5-17)addtheterm:–(N0)dBW/Hz11.Page366,Equation(6.4-3)Replace+signwith–signinthesecondtermofthesummation12.Page367,Equation(6.4-6)Replace+signwith–signinthesecondtermofthesummation13.Page367,Equations(6.4-8)and(6.4-9)addthesubscriptLtothelog-li

4、kelihoodfunction14.Page422,lines2and3aboveEquation(8.1-14)deletethephrase“nomorethan”15.Page468,12linesfromthetopand5linesfromthebottomshouldbe:b

5、)Inthedenominator,MkshouldbeMjandMjshouldbeMJ18.Page591,FigureP9.9Thelowershapingfilterinthemodulatoranddemodulator,q(t)shouldhavea“hat”onit19.Page609,6linesaboveEquation(10.1-34)εshouldbeεk+1–L-1k+l–L-120.Page646,Figure10.3-5deletethe“hat”fromI(z)21.Page651,4linesfromthetopreplace“over”with“

6、about”22.Page651,2linesaboveSection10.6“Turob”shouldbe“Turbo”23.Page673,Figure11.1-61-1Lowerdelaylineelements:zshouldbez24.Page750,Figure13.2-8Replace“adders”with“multipliers”25.Page752,Figure13.2-9Replace“adders”withmultipliers”26.Page856,Equation(14.6-5)ReplaceKwithk27.Page885,Figure14.7-7T

7、he“Input”shouldbe0231028.Page894,Problem14.16r1=h1s1+h2s2+n1**r2=h1s2+h2s1+n229.Page895kDelete2fromtheexpressionontheerrorprobability30.Page915,topofpage(15.47)shouldbe(15.3-47)31.Page925,6linesformtopT0shouldbeTp32.Page935a)topofpage:r1=b1sq