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Hi ,
I have a question in the raw data IQ that the Radar GUI captured,
I saw that the Amplitude in the graph Time domain is always limited by 0 to 1.
I have tried to change it by right click and change to another value and then Apply - OK, but It does not change anything.
I also look into the data_raw in txt , at a given time I saw there is some value = 1.0 .
As far as I know, there is a problem in the ADCs threshold that can change the game, but I don't know how to modified it.
Anyone have the answer, I really appreciate it.
Many thanks
Solved! Go to Solution.
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Hi @fpga ,
It won't really be possible for you to change this parameter on the firmware side either. For getting the non-normalized samples, the best option would be to de-normalize the values by multiplying the incoming samples by 4095 ( normalization factor ).
Best regards,
Deepa
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Hi @fpga ,
The data that is being displayed in the GUI and being saved in the text file is actually the normalized ADC values which would range between 0 & 1. You can configure the time domain window's y-axis to show the values in any range between 0 & 1 but the saved data in the text file will always be the normalized value.
Best regards,
Deepa
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Thank @Deepa_V for kindly support,
So how can I modify this parameter to ## ADC_Samples_NonNormalized = [0, 2^ADC_Res_Bits - 1]
Must I use DAVE IDE to modify it? And how can I do it?
Thanks again for your help!
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Hi @fpga ,
You can either de-normalize the values by multiply the incoming samples by 4095 ( normalization factor ) or you'll have to modify it in the Firmware. Please refer C:\IFX_D2GL-HW-SW_V1.0.0\Firmware_Software\Communication Library\ComLib_C_Interface for the info on processing.
Best regards,
Deepa
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Thanks for your reply, Could you please provide me with the details!
For instance, where can I change the data to non-normalized, and is there any problem with the system if we change the firmware like that?
Best,
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Hi @fpga ,
It won't really be possible for you to change this parameter on the firmware side either. For getting the non-normalized samples, the best option would be to de-normalize the values by multiplying the incoming samples by 4095 ( normalization factor ).
Best regards,
Deepa
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Hi @Deepa_V ,
Thank you for your help,
In order to de-normalize the values, we need to multiply the incoming samples by 4095.
That means in the raw data txt file, all the data I/Q must multiple by 4095:
0.51965815 x 4095
0.51916975 x 4095
...
Could you explain more about this problem please!
Best,
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