Power Spectral Density Unit Conversion

조회 수: 5 (최근 30일)
Hussam Ibrahim
Hussam Ibrahim 2017년 8월 28일
답변: Star Strider 2017년 8월 28일
Hello, I wrote a matlab code to find the PSD (Power Spectral Density) of a signal, but my amplitude for frequency is in dB/Hz. I am trying to compare my results to some data of another lab that has amplitude in pm^2/Hz. Would anyone be able to help me how to convert this value for PSD?
Thanks,

답변 (1개)

Star Strider
Star Strider 2017년 8월 28일
I am not certain what the units of ‘pm’ are. To convert dB (as power) to amplitude, this little anonymous function works:
dB2amplitude = @(dB) 10.^(dB/20);

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