GetFrameNormalizedDouble range

Discussion in 'Chips+Salsa' started by Girmi, Aug 17, 2017.

  1. Girmi

    Girmi New Member

    I was wondering what the range of output values of the GetFrameNormalizedDouble method of the radarWrapper class in the SalsaLab toolbox is.
    In the Radarlib3_main.pdf documentation the GetFrameNormalizedDouble method is said to produce values between 0 and 100. Is this also the case for the MATLAB code? Because the maximum values I have been able to generate are below 9.

    Edit: just realized that I got rid of DC before checking the values. Makes me wonder why DC is isn't removed before normalization, so that just the pulse-echo signal itself is normalized.
    Last edited: Aug 17, 2017
  2. Olav Liseth

    Olav Liseth Administrator Staff Member

    Hi Girmi,

    Good catch. Removing the DC offset removes some information which is up to the user. It is recommended to remove DC from each frame before further processing.