initial commit / add all books

27 files changed, 272 insertions, 0 deletions

diff --git a/992/CH9/EX9.1/Ex9_1.sce b/992/CH9/EX9.1/Ex9_1.sce
new file mode 100755
index 000000000..06398b905
--- /dev/null
+++ b/992/CH9/EX9.1/Ex9_1.sce
@@ -0,0 +1,13 @@
+

+//Exa:9.1

+clc;

+clear;

+close;

+//Given:

+Fm=80;//in MHz

+Fc=60;//in MHz

+Fb=20;//in Mbps

+MI=(Fm-Fc)/Fb;

+printf("\n Modulation index is = %f",MI);

+printf("\n Minimum required bandwidth = %fMHz",Fc);

+printf("\n Baud rate = %fMegabaud",Fb);
\ No newline at end of file
diff --git a/992/CH9/EX9.1/ex9_1.txt b/992/CH9/EX9.1/ex9_1.txt
new file mode 100755
index 000000000..bae94e456
--- /dev/null
+++ b/992/CH9/EX9.1/ex9_1.txt
@@ -0,0 +1,13 @@
+//Caption:Program to determine output band and minimum required bandwidth.

+//Exa:9.1

+clc;

+clear;

+close;

+//Given:

+Fm=80;//in MHz

+Fc=60;//in MHz

+Fb=20;//in Mbps

+MI=(Fm-Fc)/Fb;

+printf("\n Modulation index is = %f",MI);

+printf("\n Minimum required bandwidth = %fMHz",Fc);

+printf("\n Baud rate = %fMegabaud",Fb);
\ No newline at end of file
diff --git a/992/CH9/EX9.1/ex9_1ans.txt b/992/CH9/EX9.1/ex9_1ans.txt
new file mode 100755
index 000000000..53c2ce80b
--- /dev/null
+++ b/992/CH9/EX9.1/ex9_1ans.txt
@@ -0,0 +1,5 @@
+ 

+ Modulation index is = 1.000000

+ Minimum required bandwidth = 60.000000MHz

+ Baud rate = 20.000000Megabaud 

+ Execution done.   

diff --git a/992/CH9/EX9.2/Ex9_2.sce b/992/CH9/EX9.2/Ex9_2.sce
new file mode 100755
index 000000000..ff094cbaa
--- /dev/null
+++ b/992/CH9/EX9.2/Ex9_2.sce
@@ -0,0 +1,16 @@
+

+//Exa:9.2

+clc;

+clear;

+close;

+//Given:

+//Output = (sin(wa)t)(sin(wc)t)

+//         =[sin(2pi5*10^6t)][sin(2pi70*10^6t)] 

+//         =1/2[cos(2pi*65*10^6t)-cos(2pi*75*10^6t)] `

+w1=65;//in MHz

+w2=75;//in MHz

+F=w2-w1;

+printf("\n Minimum lower side frequecy = %fMHz",w1);

+printf("\n Maximum upper side frequency = %fMHz",w2);

+printf("\n Minimum nyquist bandwidth = %fMHz",F);

+printf("\n Baud rate = %fMegabaud",F);
\ No newline at end of file
diff --git a/992/CH9/EX9.2/ex9_2.txt b/992/CH9/EX9.2/ex9_2.txt
new file mode 100755
index 000000000..1586d7b75
--- /dev/null
+++ b/992/CH9/EX9.2/ex9_2.txt
@@ -0,0 +1,16 @@
+//Caption:Program to determine output band and minimum required bandwidth.

+//Exa:9.2

+clc;

+clear;

+close;

+//Given:

+//Output = (sin(wa)t)(sin(wc)t)

+//         =[sin(2pi5*10^6t)][sin(2pi70*10^6t)] 

+//         =1/2[cos(2pi*65*10^6t)-cos(2pi*75*10^6t)] `

+w1=65;//in MHz

+w2=75;//in MHz

+F=w2-w1;

+printf("\n Minimum lower side frequecy = %fMHz",w1);

+printf("\n Maximum upper side frequency = %fMHz",w2);

+printf("\n Minimum nyquist bandwidth = %fMHz",F);

+printf("\n Baud rate = %fMegabaud",F);
\ No newline at end of file
diff --git a/992/CH9/EX9.2/ex9_2ans.txt b/992/CH9/EX9.2/ex9_2ans.txt
new file mode 100755
index 000000000..148d50d12
--- /dev/null
+++ b/992/CH9/EX9.2/ex9_2ans.txt
@@ -0,0 +1,6 @@
+ 

+ Minimum lower side frequecy = 65.000000MHz

+ Maximum upper side frequency = 75.000000MHz

+ Minimum nyquist bandwidth = 10.000000MHz

+ Baud rate = 10.000000Megabaud 

+ Execution done.   

diff --git a/992/CH9/EX9.3/Ex9_3.sce b/992/CH9/EX9.3/Ex9_3.sce
new file mode 100755
index 000000000..a3470eed8
--- /dev/null
+++ b/992/CH9/EX9.3/Ex9_3.sce
@@ -0,0 +1,14 @@
+

+//Exa:9.3

+clc;

+clear;

+close;

+//Given:

+Bw=4000;//in Hz

+nQl=128;//i.e. =2^7;//quantizing levels

+NyqR=2*Bw;

+n=7;

+Total_bpersmple=8;

+total_smples=NyqR*Total_bpersmple;

+printf("\n nyquist sampling rate = %fHz",NyqR);

+printf("\n Bit rate = %fKb/sec",total_smples);
\ No newline at end of file
diff --git a/992/CH9/EX9.3/ex9_3.txt b/992/CH9/EX9.3/ex9_3.txt
new file mode 100755
index 000000000..1562a2af5
--- /dev/null
+++ b/992/CH9/EX9.3/ex9_3.txt
@@ -0,0 +1,14 @@
+//Caption:Program to determine bitrate.

+//Exa:9.3

+clc;

+clear;

+close;

+//Given:

+Bw=4000;//in Hz

+nQl=128;//i.e. =2^7;//quantizing levels

+NyqR=2*Bw;

+n=7;

+Total_bpersmple=8;

+total_smples=NyqR*Total_bpersmple;

+printf("\n nyquist sampling rate = %fHz",NyqR);

+printf("\n Bit rate = %fKb/sec",total_smples);
\ No newline at end of file
diff --git a/992/CH9/EX9.3/ex9_3ans.txt b/992/CH9/EX9.3/ex9_3ans.txt
new file mode 100755
index 000000000..33cd8340d
--- /dev/null
+++ b/992/CH9/EX9.3/ex9_3ans.txt
@@ -0,0 +1,4 @@
+ 

+ nyquist sampling rate = 8000.000000Hz

+ Bit rate = 64000.000000Kb/sec 

+ Execution done.   

diff --git a/992/CH9/EX9.4/Ex9_4.sce b/992/CH9/EX9.4/Ex9_4.sce
new file mode 100755
index 000000000..697de7a24
--- /dev/null
+++ b/992/CH9/EX9.4/Ex9_4.sce
@@ -0,0 +1,14 @@
+

+//Exa:9.4

+clc;

+clear;

+close;

+//Given:

+Pe=10^-5;

+v=0.5;

+n=2*10^-6;

+x=3.02;//at erfc(x)=2*10^-5 at x=3.02

+T=(x^2*n)/(4*v^2);

+B=1/T;

+printf("\n Minimum Time Period= %f 10^-6",T*10^6);

+printf("\n Maximum Bit rate = %fKb/sec",B/10^3);
\ No newline at end of file
diff --git a/992/CH9/EX9.4/ex9_4.txt b/992/CH9/EX9.4/ex9_4.txt
new file mode 100755
index 000000000..defaf699c
--- /dev/null
+++ b/992/CH9/EX9.4/ex9_4.txt
@@ -0,0 +1,14 @@
+//Caption:Program to determine maximum value of bitrate.

+//Exa:9.4

+clc;

+clear;

+close;

+//Given:

+Pe=10^-5;

+v=0.5;

+n=2*10^-6;

+x=3.02;//at erfc(x)=2*10^-5 at x=3.02

+T=(x^2*n)/(4*v^2);

+B=1/T;

+printf("\n Minimum Time Period= %f 10^-6",T*10^6);

+printf("\n Maximum Bit rate = %fKb/sec",B/10^3);
\ No newline at end of file
diff --git a/992/CH9/EX9.4/ex9_4ans.txt b/992/CH9/EX9.4/ex9_4ans.txt
new file mode 100755
index 000000000..3c6683319
--- /dev/null
+++ b/992/CH9/EX9.4/ex9_4ans.txt
@@ -0,0 +1,4 @@
+ 

+ Minimum Time Period= 18.240800 10^-6

+ Maximum Bit rate = 54.822157Kb/sec 

+ Execution done.   

diff --git a/992/CH9/EX9.5/Ex9_5.sce b/992/CH9/EX9.5/Ex9_5.sce
new file mode 100755
index 000000000..86b460e77
--- /dev/null
+++ b/992/CH9/EX9.5/Ex9_5.sce
@@ -0,0 +1,11 @@
+

+//Exa:9.5

+clc;

+clear;

+close;

+//Given:

+//v1(t)=10cos(2000*pi*t)+4sin(200*pi*t);

+//BPF=800Hz to 1200Hz

+printf("Since v2=v1+0.1*v1^2 and");

+printf("\n BPF=800Hz to 1200Hz ");

+printf("\n So,v3(t)=10*cos(2000*pi*t)+4*sin(2200*pi*t)-4*sin(1800*pi*t)");
\ No newline at end of file
diff --git a/992/CH9/EX9.5/ex9_5.txt b/992/CH9/EX9.5/ex9_5.txt
new file mode 100755
index 000000000..1cac432bc
--- /dev/null
+++ b/992/CH9/EX9.5/ex9_5.txt
@@ -0,0 +1,11 @@
+//Caption:Program to determine expression for signal.

+//Exa:9.5

+clc;

+clear;

+close;

+//Given:

+//v1(t)=10cos(2000*pi*t)+4sin(200*pi*t);

+//BPF=800Hz to 1200Hz

+printf("Since v2=v1+0.1*v1^2 and");

+printf("\n BPF=800Hz to 1200Hz ");

+printf("\n So,v3(t)=10*cos(2000*pi*t)+4*sin(2200*pi*t)-4*sin(1800*pi*t)");
\ No newline at end of file
diff --git a/992/CH9/EX9.5/ex9_5ans.txt b/992/CH9/EX9.5/ex9_5ans.txt
new file mode 100755
index 000000000..ac2f1decf
--- /dev/null
+++ b/992/CH9/EX9.5/ex9_5ans.txt
@@ -0,0 +1,4 @@
+ Since v2=v1+0.1*v1^2 and

+ BPF=800Hz to 1200Hz 

+ So,v3(t)=10*cos(2000*pi*t)+4*sin(2200*pi*t)-4*sin(1800*pi*t) 

+ Execution done.   

diff --git a/992/CH9/EX9.6/Ex9_6.sce b/992/CH9/EX9.6/Ex9_6.sce
new file mode 100755
index 000000000..fd38d2e94
--- /dev/null
+++ b/992/CH9/EX9.6/Ex9_6.sce
@@ -0,0 +1,11 @@
+

+//Exa:9.6

+clc;

+clear;

+close;

+//Given:

+Ts=3;//in dB

+fs=1/Ts;

+printf("\n Ms(f)=p(f)[fs*sigma{M(f-Kfs)}]");

+printf("\n 1/(1/30B)*integ(Ae^-j2*pi*f*t)dt from -60dB to 60dB");

+printf("\n AsinC(2*pi*f/60B)");
\ No newline at end of file
diff --git a/992/CH9/EX9.6/ex9_6.txt b/992/CH9/EX9.6/ex9_6.txt
new file mode 100755
index 000000000..b09dfae57
--- /dev/null
+++ b/992/CH9/EX9.6/ex9_6.txt
@@ -0,0 +1,11 @@
+//Caption:Program to print expression for frequency spectrum.

+//Exa:9.6

+clc;

+clear;

+close;

+//Given:

+Ts=3;//in dB

+fs=1/Ts;

+printf("\n Ms(f)=p(f)[fs*sigma{M(f-Kfs)}]");

+printf("\n 1/(1/30B)*integ(Ae^-j2*pi*f*t)dt from -60dB to 60dB");

+printf("\n AsinC(2*pi*f/60B)");
\ No newline at end of file
diff --git a/992/CH9/EX9.6/ex9_6ans.txt b/992/CH9/EX9.6/ex9_6ans.txt
new file mode 100755
index 000000000..8c75fdd0f
--- /dev/null
+++ b/992/CH9/EX9.6/ex9_6ans.txt
@@ -0,0 +1,5 @@
+ 

+ Ms(f)=p(f)[fs*sigma{M(f-Kfs)}]

+ 1/(1/30B)*integ(Ae^-j2*pi*f*t)dt from -60dB to 60dB

+ AsinC(2*pi*f/60B) 

+ Execution done.   

diff --git a/992/CH9/EX9.7/Ex9_7.sce b/992/CH9/EX9.7/Ex9_7.sce
new file mode 100755
index 000000000..fe80187c2
--- /dev/null
+++ b/992/CH9/EX9.7/Ex9_7.sce
@@ -0,0 +1,14 @@
+

+//Exa:9.7

+clc;

+clear;

+close;

+//Given:

+c=3500;

+b=60000;

+l=b/2/c;

+M=2^l;

+Vrms=0.2;//in volts

+s=4/M;

+SQNR=20*[log10(Vrms/s)]+10*log10(12);

+printf("\nThe signal to quantisation ratio is(SQNR)=%fdB",SQNR);
\ No newline at end of file
diff --git a/992/CH9/EX9.7/ex9_7.txt b/992/CH9/EX9.7/ex9_7.txt
new file mode 100755
index 000000000..e29e250d1
--- /dev/null
+++ b/992/CH9/EX9.7/ex9_7.txt
@@ -0,0 +1,14 @@
+//Caption:Program to determine maximum signal to quantisation noise ratio.

+//Exa:9.7

+clc;

+clear;

+close;

+//Given:

+c=3500;

+b=60000;

+l=b/2/c;

+M=2^l;

+Vrms=0.2;//in volts

+s=4/M;

+SQNR=20*[log10(Vrms/s)]+10*log10(12);

+printf("\nThe signal to quantisation ratio is(SQNR)=%f",SQNR);
\ No newline at end of file
diff --git a/992/CH9/EX9.7/ex9_7ans.txt b/992/CH9/EX9.7/ex9_7ans.txt
new file mode 100755
index 000000000..c14b23b30
--- /dev/null
+++ b/992/CH9/EX9.7/ex9_7ans.txt
@@ -0,0 +1,3 @@
+ 

+The signal to quantisation ratio is(SQNR)=36.376355dB 

+ Execution done.   

diff --git a/992/CH9/EX9.8/Ex9_8.sce b/992/CH9/EX9.8/Ex9_8.sce
new file mode 100755
index 000000000..17a670eb6
--- /dev/null
+++ b/992/CH9/EX9.8/Ex9_8.sce
@@ -0,0 +1,12 @@
+

+//Exa:9.8

+clc;

+clear;

+close;

+//Given:

+SQNR=20;

+Nq=3*10^-4;//in Watts

+S=sqrt(12*3*10^-4);

+M=(3.8+3.8)/S;//-3.8V to 3.8V signal variation

+n=log2(M);

+printf("Number of bits per sample %f",n);

diff --git a/992/CH9/EX9.8/ex9_8.txt b/992/CH9/EX9.8/ex9_8.txt
new file mode 100755
index 000000000..5afb18723
--- /dev/null
+++ b/992/CH9/EX9.8/ex9_8.txt
@@ -0,0 +1,12 @@
+//Caption:Program to number of bits required per sample,minimum bandwidth for multiplexed signal.

+//Exa:9.8

+clc;

+clear;

+close;

+//Given:

+SQNR=20;

+Nq=3*10^-4;//in Watts

+S=sqrt(12*3*10^-4);

+M=(3.8+3.8)/S;//-3.8V to 3.8V signal variation

+n=log2(M);

+printf("Number of bits per sample %f",n);
\ No newline at end of file
diff --git a/992/CH9/EX9.8/ex9_8ans.txt b/992/CH9/EX9.8/ex9_8ans.txt
new file mode 100755
index 000000000..a9cdfeaf5
--- /dev/null
+++ b/992/CH9/EX9.8/ex9_8ans.txt
@@ -0,0 +1,2 @@
+ Number of bits per sample 6.984893 

+ Execution done.   

diff --git a/992/CH9/EX9.9/Ex9_9.sce b/992/CH9/EX9.9/Ex9_9.sce
new file mode 100755
index 000000000..b1b4c4f22
--- /dev/null
+++ b/992/CH9/EX9.9/Ex9_9.sce
@@ -0,0 +1,13 @@
+

+//Exa:9.9

+clc;

+clear;

+close;

+//Given:

+SNR=32;

+Actual_snr=10^(SNR/10);

+w1=300;//in Hz

+w2=3400;//in Hz

+w=w2-w1;

+c=w*log2(1+Actual_snr);

+printf("\n Capacity=%f bits/sec",c);
\ No newline at end of file
diff --git a/992/CH9/EX9.9/ex9_9.txt b/992/CH9/EX9.9/ex9_9.txt
new file mode 100755
index 000000000..9038b7cee
--- /dev/null
+++ b/992/CH9/EX9.9/ex9_9.txt
@@ -0,0 +1,13 @@
+//Caption:Program to calculate the capacity of a standard telephone channel.

+//Exa:9.9

+clc;

+clear;

+close;

+//Given:

+SNR=32;

+Actual_snr=10^(SNR/10);

+w1=300;//in Hz

+w2=3400;//in Hz

+w=w2-w1;

+c=w*log2(1+Actual_snr);

+printf("\n Capacity=%f bits/sec",c);
\ No newline at end of file
diff --git a/992/CH9/EX9.9/ex9_9ans.txt b/992/CH9/EX9.9/ex9_9ans.txt
new file mode 100755
index 000000000..89e6ade42
--- /dev/null
+++ b/992/CH9/EX9.9/ex9_9ans.txt
@@ -0,0 +1,3 @@
+ 

+ Capacity=32956.347676 bits/sec 

+ Execution done.