| Electronics > Beginners |
| How to get total power from spectrum measure of a signal |
| (1/1) |
| bonzer:
Hi everyone! Please help me to understand how exactly to get the total power of a signal for example that from this figure from a spectrum analyzer. Forget about that narrow band signal for now and consider only M2 part. I think I would need to sum all these values through the band. I need the power spectrum density (PSD). What would it be? The values I see are RMS (right?). Then the PSD in this case would be (as for sinusoids) the power of two of these values (converted in linear scale). Then should I multiply the almost constant PSD by the band? (assuming I know that there are for example 100Mhz of -3dB band). Is total power PSD*Band ? |
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