[DW1000] Carrier integrator register

Hi all,

Which algorithm is implemented in the DW1000 hardware in order to provide the carrier integrator register value? Does anyone knows where to find a paper or any reference explaining how does it works?

This register gives an estimate of the frequential drift between emitter and the receiver when a message is received. I know how to use this register and get its measurements but not the process behind.

Sincerely,
JC