diff options
Diffstat (limited to '3788/CH6/EX6.2.1')
| -rw-r--r-- | 3788/CH6/EX6.2.1/Ex6_2_1.PNG | bin | 0 -> 94005 bytes | |||
| -rw-r--r-- | 3788/CH6/EX6.2.1/Ex6_2_1.sce | 42 |
2 files changed, 42 insertions, 0 deletions
diff --git a/3788/CH6/EX6.2.1/Ex6_2_1.PNG b/3788/CH6/EX6.2.1/Ex6_2_1.PNG Binary files differnew file mode 100644 index 000000000..5ebe52ea0 --- /dev/null +++ b/3788/CH6/EX6.2.1/Ex6_2_1.PNG diff --git a/3788/CH6/EX6.2.1/Ex6_2_1.sce b/3788/CH6/EX6.2.1/Ex6_2_1.sce new file mode 100644 index 000000000..eee07265c --- /dev/null +++ b/3788/CH6/EX6.2.1/Ex6_2_1.sce @@ -0,0 +1,42 @@ +//example 6.2.1
+//calculate power level at op of transponder
+//variables
+clc
+clear
+pearth = 500
+gain = 105
+backoff = 3
+outputpower = 40
+BWStA = 15
+BWStB = 10
+BWStC = 5
+Pt = 20
+EIRPa = 3.0
+EIRPb = 4.8
+EIRPc = 7.8
+
+PtindB=10*log10(outputpower) - backoff
+printf("Power of tansponder is %fdBW \n",PtindB)
+BWt = BWStA + BWStB + BWStC
+PtA = 10*log10((BWStA/BWt)*Pt)
+PtB = 10*log10((BWStB/BWt)*Pt)
+PtC = 10*log10((BWStC/BWt)*Pt)
+printf("Transponder power output allocated to StA is %f dBW \n",PtA)
+printf("Transponder power output allocated to StB is %f dBW\n",PtB)
+printf("Transponder power output allocated to StC is %f dBW\n",PtC)
+
+PinA = PtA - gain
+PinB = PtB - gain
+PinC = PtC - gain
+printf("Transponder input power for StA signal is %f dBW\n",PinA)
+printf("Transponder input power for StB signal is %f dBW\n",PinB)
+printf("Transponder input power for StC signal is %f dBW \n",PinC)
+
+Pte = 10*log10(250)
+PStA = Pte - EIRPa
+PStB = Pte - EIRPb
+PStC = Pte - EIRPc
+printf("The Earth Station A transmit power is %f dBW \n",PStA)
+printf("The Earth Station B transmit power is %f dBW \n",PStB)
+printf("The Earth Station C transmit power is %f dBW\n",PStC)
+
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