Forum: GNU Radio I/Q imbalance

Posted by Muhammad Ziaullah Rabbani (ziaullah)
on 2013-02-20 06:59
Attachment: step1.jpg (169 KB)
Attachment: step2.jpg (89,2 KB)
Attachment: step3.jpg (177 KB)
Hi all,

i am new to gnuradio, and i am making a human movt radar as a ug
project. now here
is my  approach,
i have to transmit an unmodulated complex sinusoid (2.4GHz ism band)
from the tx, and on the reciever i am saving the recieved samples
in file, 'cuz i cant process the data in realtime (10-15 seconds of data
recording makes a file of ~200-300 MBs), now before i process the rx'd
data by applying signal processing algorithms, i have to perform i/Q
imbalance correction on the signal (by transmitting the complex exp sig,
recieving it, and comparing the I/Q components of the tx'd and rx'd
signals)

Now i dont know how to do the I/Q correction.
i have done the calculations for the filters and etc, all in theory but
i dont know how to take it forwad,

any help will be appreciated

(Block diagram of the project is attached)

Thanks
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