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Tagged with signal-to-noise thermal
4 questions
2
votes
2
answers
460
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Producing simulated thermal noise
I’m trying to simulate thermal (Johnson) noise. As I understand it, thermal noise follows a Gaussian distribution, power at the receiver is given by:
$$
P = 4kTB
$$
And the RMS voltage is given by:
$$
...
0
votes
2
answers
312
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How to calculate noise voltage after amplification?
I'm simulating the thermal noise experienced by some instrument, outputted as a voltage vs time plot. To calculate the "power" of this noise, I'm using:
P = 4kTB (k = Boltzmann's constant, T ...
- 109
0
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1
answer
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How to calculate thermal noise contributed by an LNA?
I've written a thermal noise simulation for a piece of equipment which produces the oscilloscope trace one would expect to see coming out of the instrument.
Now, I'd like to take into consideration ...
0
votes
2
answers
624
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How to plot thermal noise in the time domain?
The power of this thermal noise is given by:
P = 4kT (k = Boltzmann’s constant, T = temperature (Kelvins))
And, thus, the voltage by:
V^2 / R = 4kT (R = resistance)
Finally, we must take into account ...