CCS/AWR1642: Phase Coded FMCW radar

Hi Jitendra,

I am sorry. why? cannot we use the following API to do phase coding on  AWR 1443 and IWR 1642?

if not, could we do on IWR 1843? we just bought one IWR 1843. Basically, what is the difference between IWR and AWR?

Also, going back to my original question as shown below,

"

However, if I want to do more than one-bit coding in a single chirp, like 2, 3 or 4 bits, is there any suggestion that we could modify our AWR/IWR, in hardware and software? I have AWR 1443 and IWR 1642 now.

Basically, what I would like to is joint sensing and communication of our AWR/IWR.

"

Thanks.

Regards,

Jay

Hello Jay,

TX BPM (1-bit phase encoding) is supported which is just 0 or 180 degree phase but other value of phase control (e.g. 34degree) is not available in xWR16/14xx devices.

However xWR1843 (AWR1843 or IWR1843) supports 6bit of Phase encoding, so you can set multiple values of Tx phase angle in multiple of 5.6degree.

Please refer to this FAQ  for differences between the AWR and IWR devices.

To your original question: xWR1843 supports 6bits of phase encoding, so you can use mmwavelink API (rlRfSetPhaseShiftConfig) to set a specific phase to each of Tx of the device.

Jay Zhang said:

Basically, what I would like to is joint sensing and communication of our AWR/IWR.

I don't fully absorb your question here. Do you need to use both AWR & IWR device together for object detection? or is it related to communication b/w two mmwave sensor devices??

Regards,

Jitendra