AWR2944EVM: The selection for the number of Tx antennas and empty bands in the scheme Doppler division multiple access (DDMA)

Rata Zhang

Part Number: AWR2944EVM
Other Parts Discussed in Thread: TIDEP-01027

Hi,

In the doc ‘Design Guide: TIDEP-01027：High-End Corner Radar Reference Design’，DDMA based on the empty sub-band is introduced, In this paper,take Nt=4(the tx antenna number) and Ne=2 (the empty band number)as an example.Now if I want to change the value of Nt and Ne.How should I choose the value?Is there any theoretical reference that I can refer to?

Thanks;

Rata

over 2 years ago

0 Cesar over 2 years ago

TI__Guru*** 138349 points

Hi,

Please give us some time to review your question

thank you

Cesar

0 Aniket Mahajan over 2 years ago

TI__Genius 14846 points

Hi Rata,

In general, changing the number of antenna are tightly coupled to the rest of the processing chain. You would have to modify the processing chain (hardware accelerator paramsets, EDMA paramsets and DSP calculations) accordingly. I would suggest looking at the mmWave MCU+ SDK 4.2's out of box demo documentation for more details on how the chain is implemented. The high end corner radar lab borrows heavily from this processing chain.

Regards,

Aayush

0 Rata Zhang over 2 years ago in reply to Aniket Mahajan

Expert 2405 points

Hi Aayush,

In these documentatioms, the scheme of DDMA is only introduced，I can not find the information about the theroy of DDMA,can you support any matrial about the DDMA theory?

Thanks,

BR,

Rata

0 Aniket Mahajan over 2 years ago in reply to Rata Zhang

TI__Genius 14846 points

Hi Rata,

At the moment, we do not have any documentation outside of the SDK datapath's Doxygen documentation.

Regards,

Aayush

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AWR2944EVM: The selection for the number of Tx antennas and empty bands in the scheme Doppler division multiple access (DDMA)