How to calculate PSD if i have power vs freq spectrum?

Question

i have a signal something like this

how to calculate PSD?

i have freq from 191000200 to 196500000

time gap or delta t = 1 or 2 sec, (what i mean is [tn] - [tn-1]) i will be computing in python any suggestion from scipy or any lib will be helpful

thanks in advance

With this amount of information: not at all; you can plot these five values, you can average them, interpolate between at will, but without any information what they mean and how they were measured, no chance of estimating a PSD. Everything you claim could be right or wrong. This needs way more information about where these numbers come from. — Marcus Müller, Sep 9 '20 at 17:47
If those are dBm (and not mdB, which I've never heard of), I'd suggest reviewing your calculations. — MBaz, Sep 9 '20 at 18:27
@LTpy um, if that's dBm, then they're totally utterly wrong. — Marcus Müller, Sep 9 '20 at 21:21
@LTpy so, this has to be broken: If you receive only a single 191 MHz photon per year, then you'd have a power of roughly -324 dBm. So, you're more than worlds off here in your values, and as sad, without any meaning to what you do, we really can only wildly guess what this has to do with a PSD. Vote to close as unclear, sadly. — Marcus Müller, Sep 9 '20 at 21:49

LTpy · Accepted Answer · 2020-09-29 10:17:16Z

-1

it works okay for me,

thanks for the comments, it helped me to understand the data what I was receiving.

answered Sep 29 '20 at 10:17

LTpy

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