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Diffstat (limited to '3542/CH5/EX5.4/Ex5_4.sce')
| -rw-r--r-- | 3542/CH5/EX5.4/Ex5_4.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/3542/CH5/EX5.4/Ex5_4.sce b/3542/CH5/EX5.4/Ex5_4.sce new file mode 100644 index 000000000..4764ece93 --- /dev/null +++ b/3542/CH5/EX5.4/Ex5_4.sce @@ -0,0 +1,29 @@ +//Example no 5.4
+//To compute a)RMS delay spread b)maximum bit rate
+//Page no. 201
+
+clc;
+clear all;
+
+//Given data
+t1=0; //Excess delay of first signal
+a1=0; //Power level of first signal in dB
+t2=1*10^-6; //Excess delay of second signal
+a2=0; //Power level of second signal in dB
+a1=10^(a1); //Power level of first signal in Watt
+a2=10^(a2); //Power level of second signal in Watt
+
+//a)To compute RMS delay spread
+t=((a1*t1+a2*t2)/(a1+a2))*10^6; //Mean excess delay
+t2=((a1*t1^2+a2*t2^2)/(a1+a2))*10^12; //Mean square excess delay
+sigmat=sqrt(t2-t^2); //RMS delay spread in microseconds
+
+//Displaying the result in command window
+printf('\n The RMS delay spread = %0.1f microseconds',sigmat);
+
+//b)To compute maximum bit rate
+Ts=(sigmat*10^-6)/0.1; //Sampling time of BPSK modulated signal
+Rs=(1/Ts)*10^-3; //Maximum bit rate in kbps
+
+//Displaying the result in command window
+printf('\n The maximum bit rate = %0.0f kbps',Rs);
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