Accumulator CIR Phase

I’m running the following setup and trying to perform localization using PDoA method:

  • 1 TREK1000 as anchor
  • 4 DW1000 modules running under the same clock signal, one as the tag to perform ranging with the TREK1000 anchor, and the TREK1000 response listened by all 4 modules. Accumulator CIR from them are dumped out for analysis

From the CIR for all modules, I locate the first peak on CIR magnitude and use the phase at that tap for PDoA analysis.

The question I have is if the phase from accumulator CIR is the phase of the carrier?