Consultation regarding setting issues of the 4-level cascaded barracuda radar chipset TDMIMO

[amei_liu]

Greetings, esteemed expert from NXP.

I have encountered an issue while configuring the 8T16R TDMIMO waveform. It seems that there are some discrepancies in the received data for certain channels when configuring the waveform with 8 profiles.

Could you please assist me in analyzing the root cause of this problem? Your help is greatly appreciated.

Attached is the design of the waveform, with ADC RAW DATA stored in LPDDR.

Upon analyzing the collected ADC raw data, I have identified the following issues:
The left graph represents the RDM (in decibels) of 16 receiving channels, while the right graph displays the raw data.

We have attempted to implement a 6T16R TDMIMO using 6 profiles, and the data is accurate.
- May I inquire as to what could be the possible cause of this?
- Is it not feasible to configure 8 profiles?

Please find attached our waveform configuration file for your perusal.

Here are all the tests we have conducted and their respective outcomes.

[petervlna]

Hello,

I was talking to AFE expert and he is not sure if there is an easy answer.

At first sight he do not know what may be wrong here.

Please submit a ticket at NXP.com so we can handle this to radar team.

Best regards,

Peter

[petervlna]

Hello,

Let me ask our AFE expert, but due vacation period it will take a bit of time.

Please be patient, or get in touch with FAE if you have one.

Best regards,

Peter