Separation of IQ data

#1 · 13/12/2021, 15:31

Hi,

Is it possible to separate the IQ data and get two columns: one for I and the other for Q?

Thanks.

#2 · 13/12/2021, 15:38

Sure, use the IQ Oscilloscope or the IQ Pulse Inspector.

#3 · 14/12/2021, 08:52

Is it also possible to write the IQ data separated by two columns in the file?

Thanks.

#4 · 14/12/2021, 12:39

So far this is not possible but since the IQ data structure/table is quite straight forward you can easily extract it from the IQ data file.

#5 · 25/01/2022, 10:15

Hi,

I'd like to record IQ samples of LTE channel bandwidth 20MHz and base sampling rates of 2048 (FFT size).

I attach the blocks diagram according to your recommendation in order to write separated IQ data in two columns in the file: one for I and the other for Q.

The file's format will be in two columns of integer numbers representing I and Q samples at baseband and base sampling rates. You can separate the columns by tabs or spaces; the integer numbers are 16-bit signed integers between -32768 and +32767. Alternatively, the two columns can represent double precision floating point numbers without any range restriction.

Please let me know if the diagram blocks are drawn correctly and how to output to a specific format.
I'm also attaching an example of the output I would like.

Thanks.

Uploaded files:

#6 · 26/01/2022, 09:53

The FileSource block should be what you are looking for since it can export a lot of different formats:

IQ data Export