IWR1443BOOST： Capture TDM-MIMO data with DCA1000EVM

Qianying Tan

Part Number: IWR1443BOOST

I have one question on adc data arrangement for TDM MIMO configuration. In the mmwave doxygen document, the TDM-MIMO adc data is arranged according to the transmitters , (chirp1,chirp3,chirp(N-1)) data is arranged for Tx1 first and then (chirp2,chirp4,chirp(N)) for Tx2 next. Is this order also used when capturing adc data over DCA1000EVM ? .Can I reshape the received data virtual antenna matrix in the order in which it was sent?

over 6 years ago

0 Alex Rivera over 6 years ago

TI__Intellectual 2885 points

Qianying,

Please look at the following FAQ LINK

If you still have questions please let me know.

Alex

0 Qianying Tan over 6 years ago in reply to Alex Rivera

Prodigy 20 points

Hi Alex,

I read the xWR1xx ADC Raw Data Capture app note. Based on my understanding, the data structure for 3 TX and 4 RX should be like this:

When chirp1 is transmitted by TX1, the 4 RX receive the echo transmitted by TX1. When chirp2 is transmitted by TX2, the 4 RX receive the echo transmitted by TX2. Is the above understanding correct?

0 Alex Rivera over 6 years ago in reply to Qianying Tan

TI__Intellectual 2885 points

Qianying,

That is correct, as long as your chirp configuration is TX1, TX3, TX2.

Alex

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IWR1443BOOST： Capture TDM-MIMO data with DCA1000EVM