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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
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treeab291cffc65280e58ac82470ba63fbcca7805165 /1574/CH2
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-rwxr-xr-x1574/CH2/EX2.2/Result_of_Chapter_2_Ex_2_2.JPGbin0 -> 170882 bytes
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diff --git a/1574/CH2/EX2.2/Result_of_Chapter_2_Ex_2_2.JPG b/1574/CH2/EX2.2/Result_of_Chapter_2_Ex_2_2.JPG
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diff --git a/1574/CH2/EX2.2/SCS_Ex_2_2.sce b/1574/CH2/EX2.2/SCS_Ex_2_2.sce
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.2, page no 125
+//given
+Io=4*10^-3 //rqueired operating current
+N1=10000 //no of turns in the main winding
+R1=645 //resistence of the main winding in ohms
+N2=200 //no of turns in auxillary winding
+B=2 //spacing bias
+Iaux=B/N2 //maximum auxillary current
+mprintf('maximum auxillary current is:%f mA\n',Iaux*1e3)
+MMFaux=N2*Iaux //MMF in the auxillary winding
+mprintf('MMF in the auxillary winding is:%fAT \n',MMFaux)
+MMFop=Io*N1 //operating MFF in main winding
+mprintf( ' MMF in main winding is:%f AT \n',MMFop)
+MMFnet=MMFop+(0.1*MMFop) //net MMF required in main winding
+mprintf('net MMF required in main winding is:%f AT \n',MMFnet)
+Iop=MMFnet/N1 //operating current needed
+mprintf('operating current needed is:%f mA \n',Iop*1e3)
+V=Iop*R1 //working voltage in volts
+mprintf('working voltage is:%f volts \n',V)
diff --git a/1574/CH2/EX2.3/Result_of_Chapter_2_Ex2_3.JPG b/1574/CH2/EX2.3/Result_of_Chapter_2_Ex2_3.JPG
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.3,page no 125
+//given
+C=6000//Tatol no of call in busy hour
+SC=5000//no of subscribers
+CR=C/SC//busy hour calling rate
+mprintf('Busy hour calling rate is:%f \n',CR)
+T=2.5/60//avarage duration of calls in hours
+
+A=C*T//rate of traffic flow
+mprintf('Rate of traffic flow is %f traffic unit ',A)
diff --git a/1574/CH2/EX2.4.0/Result_of_Chapter_2_Ex2_4_Pg126_Top.JPG b/1574/CH2/EX2.4.0/Result_of_Chapter_2_Ex2_4_Pg126_Top.JPG
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diff --git a/1574/CH2/EX2.4.0/SCS_ex_2_4_Pg_126_TOP.sce b/1574/CH2/EX2.4.0/SCS_ex_2_4_Pg_126_TOP.sce
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.4,page no 126
+//given
+L=3//relay inductance in henry
+R=1500//relay resistance in ohm
+Io=20e-3//oparating current in amps
+Ir=8e-3//release current in amps
+
+V=50//supply volatage in volts
+Im=V/R//maxixmum current in amps
+mprintf('maxixmum current is %f mamps \n',Im*1e3)
+to=(L/R)*log(1/(1-(Io/Im)))//operate lag in sec
+mprintf('operate lag is %f msec \n',to*1000)
+tr=(L/R)*log(Im/Ir)//release lag in sec
+mprintf('release lag is %f msec \n',tr*1000)
diff --git a/1574/CH2/EX2.4.1/Result_of_Chapter_2_Ex2_4_Pg126_Bottom.JPG b/1574/CH2/EX2.4.1/Result_of_Chapter_2_Ex2_4_Pg126_Bottom.JPG
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diff --git a/1574/CH2/EX2.4.1/SCS_ex_2_4_Pg_126_Bottom.sce b/1574/CH2/EX2.4.1/SCS_ex_2_4_Pg_126_Bottom.sce
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.4.1,page no 126
+//given
+//a
+C_S1=20/3//speed in characters per second
+P_C1=1/C_S1//periods per character
+mprintf('(a)\nperiods per character is:%f msec\n',P_C1*1e3)
+E_C1=7.5//elements per character
+P_E1=P_C1/E_C1//period per element
+mprintf('period per element is:%f msec\n',P_E1*1e3)
+Sb1=1/P_E1//speed in bauds
+mprintf('speed is:%f bauds\n\n',Sb1)
+//b
+C_S2=10//speed in characters per second
+P_C2=1/C_S2//periods per character
+mprintf('(b)\nperiods per character is:%f msec\n',P_C2*1e3)
+E_C2=7.5//elements per character
+P_E2=P_C2/E_C2//period per element
+mprintf('period per element is:%f msec\n',P_E2*1e3)
+Sb2=1/P_E2//speed in bauds
+mprintf('speed is %f bauds\n\n', Sb2)
+//c
+C_S3=10//speed in characters per second
+P_C3=1/C_S3//periods per character
+mprintf('(c)\nperiods per character is:%f msec\n',P_C3*1e3)
+E_C3=10//elements per character
+P_E3=P_C3/E_C3//period per element
+mprintf('period per element is:%f msec\n',P_E3*1e3)
+Sb3=1/P_E3//speed in bauds
+mprintf('speed is %f bauds\n',Sb3)
diff --git a/1574/CH2/EX2.5/Result_of_Chapter_2_Ex_2_5.JPG b/1574/CH2/EX2.5/Result_of_Chapter_2_Ex_2_5.JPG
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.5,page no 127
+//given
+N=1000//no of turns
+L1=5e-8//inductance per turn
+L=N^2*L1//total inductance
+mprintf('total inductance is %f H \n',L)
+R=100//resistance of winding in ohm
+MMF=5//operating MMF in amp. turn
+V=1//voltage of received signal in volts
+Im=V/R//maximum current
+mprintf('maximum current is %f mA \n',Im*1e3)
+Io=MMF/N//operating current
+mprintf('operating current is %f mA \n',Io*1e3)
+to=(L/R)*log(1/(1-(Io/Im)))//operate lag
+mprintf('operate lag is %f msec \n',to*1e3)
diff --git a/1574/CH2/EX2.6/Result_of_Chapter_2_Ex_2_6.JPG b/1574/CH2/EX2.6/Result_of_Chapter_2_Ex_2_6.JPG
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diff --git a/1574/CH2/EX2.6/SCS_ex_2_6.sce b/1574/CH2/EX2.6/SCS_ex_2_6.sce
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.6,page no 128
+//given
+S=10000//no of subscribers
+C=16000//Tatol no of call in busy hour
+CR=C/S//busy hour calling rate
+mprintf('Busy hour calling rate is:%f \n',CR)
+T=2.6//avarage duration of calls in min
+
+A=C*(T/60)//rate of traffic flow
+mprintf('Rate of traffic flow is %f traffic unit ',A)
diff --git a/1574/CH2/EX2.7/Result_of_Chapter_2_Ex_2_7.JPG b/1574/CH2/EX2.7/Result_of_Chapter_2_Ex_2_7.JPG
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.7,page no 135
+//given
+N=7//no of character elements
+E_C=10//elements per character (1+7+1+1)
+To=100e-3//duration of one character
+Te=To/E_C//duration of each element
+mprintf('duration of each element is:%f msec\n',Te*1e3)
+Sb=1/Te//speed in bauds
+mprintf('speed is %f bauds\n',Sb)
+C=2^N//total possible combinations
+mprintf('total possible combinations are:%f',C)
diff --git a/1574/CH2/EX2.8/Result_of_Chapter_2_Ex_2_8.JPG b/1574/CH2/EX2.8/Result_of_Chapter_2_Ex_2_8.JPG
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diff --git a/1574/CH2/EX2.8/SCS_ex_2_8.sce b/1574/CH2/EX2.8/SCS_ex_2_8.sce
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.8,page no 129
+//given
+S=1000//no of subscribers
+T=2.4/60//avarage duration of calls in hours
+A=60//rate of traffic flow
+C=A/T//Tatol no of call in busy hour
+mprintf('Total no of call in busy hour is:%f calls per Hour\n',C)
+CR=C/S//busy hour calling rate
+mprintf('Busy hour calling rate is:%f \n',CR)
+SCL=30//no of call lost per hour
+
+B=SCL/(C+SCL)//grade of service
+mprintf('grade of service is: %f',B)
diff --git a/1574/CH2/EX2.9/Result_of_Chapter_2_Ex_2_9.JPG b/1574/CH2/EX2.9/Result_of_Chapter_2_Ex_2_9.JPG
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+clc;
+// Chapter 2 Switched communication systems
+//Example 2.9,page no 129
+//given
+N=5//no of switches
+A=0.9//traffic offered
+//grade of service B=(A^N/N!)/(1+A+A^2/2!+A^3/3!+...+A^N/N!)
+//here
+B=(A^N/factorial(N))/(1+A+(A^2/factorial(2))+(A^3/factorial(3))+(A^4/factorial(4))+(A^5/factorial(5)))
+mprintf('grade of service is: %f\n',B)
+Tl=A*B//traffic lost
+mprintf('traffic lost is:%f',Tl)