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Diffstat (limited to '3739/CH6/EX6.4/EX6_4.sce')
| -rw-r--r-- | 3739/CH6/EX6.4/EX6_4.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/3739/CH6/EX6.4/EX6_4.sce b/3739/CH6/EX6.4/EX6_4.sce new file mode 100644 index 000000000..09e7b942f --- /dev/null +++ b/3739/CH6/EX6.4/EX6_4.sce @@ -0,0 +1,25 @@ +//Chapter 6, Example 6.4, page 233
+clc
+
+//Initialisation
+f=150*10**6 //frequency in Hz
+c1=3*10**8 //speed of light
+h11=60 //in metre
+d11=2000 //in metre
+d1=259.6 //in metre
+b=2000 //in metre
+a=250 //in metre
+h21=80 //in metre
+d21=7259 //in metre
+c=7250 //in metre
+
+//Calculation
+h=c1*f**-1 //wavelength
+v1=h11*sqrt((2*(h*d1)**-1)+(1*d11**-1))
+L1=6.9+20*log10(sqrt((v1-0.1)**2+1)+v1-0.1) //path diffraction loss
+v2=h21*sqrt((2*(h*d11)**-1)+(1*d21**-1))
+L2=6.9+20*log10(sqrt((v2-0.1)**2+1)+v2-0.1) //path diffraction loss
+
+//Results
+printf("Diffraction loss L1 = %.2f dB",L1)
+printf("\n L2 = %.2f dB",L2)
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