[Discuss-gnuradio] I'm worried about How do the FFT in MATLAB

[山本弘貴]

Hi,All.
I'm worried about on USRP receive data How do the FFT  in MATLAB?
I am tty to develop software GPS receiver.　My develop plan is

GPS satellite →　GPSanntena →　LNA →　DBSRX2　→　USRP N200　→　PC(in MATLAB
C/A code decode and location data　Analysis )

I have a one problem that I want to do FFT using  my receive GPS data.
but I think that receive data binary's format is →　I1 | Q1 | I2 |Q2
|I3 |Q3.... end
How to do FFT  using this data in MATLAB ?
I saved receive data which sampling rate is 10M byte/s
but GPS receive data frequency is 1500MHz.
Is ADC(analog digital converter ) used aliasing technology?
then How to decode　aliasing technology in MATLAB  ?


I'm sorry long sentence

Kouki