[Discuss-gnuradio] Seeking mentor in GSoC

[Gong Zhang]

Dear All,
  I'm a graduate student and my research area includes wireless sensor networks 
and signal processing.
  I notice the lack of a absolute clock synchronization method in USRP without 
cable or external input such as GPSDO.And the sync arruracy should be as high 
as microsecond.This is crucial for some applications such as 
localization,frequency hopping,relay communication,joint sensing and TDMA.My 
target is to perform a block like this.
  My current thinking is a timestamp based sync method.The general idea is the 
following.
USRP A send several some data which contains the time stamp (called send 
timestamp) when itself was send.USRP B receive the data and record the time 
stamp (called received timestamp) when it was received.After demodulation of 
the data,B get the send timestamp.With these two timestamp,B can do some signal 
process to reach absolute clock synchronization.
  And now the problem is that I need a mentor.If you are interested, please 
contact me.
  Thank you in advance.
Best,
ZG