IQ_Correction

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lni_teamB_proj
Posts: 5
Joined: Mon Sep 21, 2015 10:29 pm

IQ_Correction

Post by lni_teamB_proj » Thu Oct 01, 2015 2:28 am

. I read the vhdl code “iq_correction” at https://github.com/Nuand/bladeRF/blob/7 ... ection.vhd
But I can not understand :
[*] how the tan_table core works ?
[*] what is the equation to calculate the signal “phase_correction” and its meaning ?
[*] Is there any document for this vhdl code ?

bpadalino
Posts: 303
Joined: Mon Mar 04, 2013 4:53 pm

Re: IQ_Correction

Post by bpadalino » Thu Oct 01, 2015 5:34 am

The correction was adapted from what is described in the LMS7002M datasheet on page 8, Figure 16, under the section "IQ Phase Correction".

Hopefully this helps!

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