DFT results explanation

[Lior Dagan]

Hello all.
I am looking at an ocean dft output waveform. I am seeing that the resultant waveform, at the frequency of interest, is from 20mV ro -50mV, the y axis label is "Mag". I expected it to be from 0 to up or down, not below and above.
Can anyone explain this?
The Expression, in the ADE "Setting Outputs" dialog box is:
dft((VT"/buf_out_filter") 9.47e-07 9.5e-07 "Rectangular" 1 "default")
Thanks.

 

[Andrew Beckett]

On 10/15/12 09:49, Lior Dagan wrote:

Hello all.
I am looking at an ocean dft output waveform. I am seeing that the
resultant waveform, at the frequency of interest, is from 20mV ro -50mV,

the y axis label is "Mag". I expected it to be from 0 to up or down, not
below and above.

Can anyone explain this?
The Expression, in the ADE "Setting Outputs" dialog box is:
dft((VT"/buf_out_filter") 9.47e-07 9.5e-07 "Rectangular" 1 "default")
Thanks.

Hi Lior,

I don't understand what you mean by "is from 20mV to -50mV"...

Andrew