% 'FFT': calculate and display 2D spectrum of the input scalar
%  GUI_input=FFT(hget_field)
%
% OUTPUT: 
% GUI_input: option for display in the GUI get_field
%
%INPUT:
% hget_field: handles of the GUI get_field
%

function DataOut=signal_filter(DataIn)
%% set GUI config
DataOut=[];
if strcmp(DataIn,'*')   
    DataOut.InputFieldType='1D';
    return
end
%%%%%%%%%%%%%%%%%%%%%%%%%
frequency=2*5/54.5;
frequency=frequency;
 %d=fdesign.bandpass(0.8*frequency, 0.95*frequency, 1.05*frequency, 1.2*frequency, 60, 1, 60);
 d=fdesign.bandpass(0.7*frequency, 0.9*frequency, 1.1*frequency, 1.3*frequency, 60, 1, 60);
 Hd=design(d);% command  fvtool(Hd) to visualize the filter frequency response
 DataOut=DataIn;
 if isfield(DataIn,'U')
 DataOut.U = filter(Hd,DataIn.U);
 end
  if isfield(DataIn,'V')
 DataOut.V = filter(Hd,DataIn.V);
 end