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Jam Power of a Jamming Source |
Equation:
PJ = (JPr
x (4 x pi)2 x R2J x BWJ
x L) /
( GJ x GR x
λ2
x BWR)
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PJ
= Jammer Transmitted Power (Watt) |
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JPr
= Jam Power at Receiver Input (Watt) |
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RJ
= Range to Jamming Source (m) |
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BWJ
= Jamming Bandwidth (Hz) |
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L
= Losses (Figure) |
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GJ
= Antenna Gain Jammer (Figure) |
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GR
= Antenna Gain Radar (Figure) |
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λ
= Wavelength (m) |
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BWR
= IF Bandwidth Radar (Hz) |
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Example: |
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JPr
pi 50km BWJ
19dB 6dB 44dB 0.033 BWR |
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PJ
= (7.08-10 x 158 x 2.59
x 16 x 79) /
(4 x 25119 x 1.09-3 x 16)
= 201.73 Watt
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