System for generating accurate reference signals for time-of-arrival based time synchronization

A system for generating a self-receive signal comprising:

• a signal generator;
• a first signal processor;
• a second signal processor;
• an antenna;
• a transmit chain:
• electromagnetically coupling the signal generator to the antenna;
• and
• configured to effect a first phase delay for a transmitted signal coupled from the signal generator to the antenna;
• a receive chain:
• electromagnetically coupling the antenna to the second signal processor;
• comprising a receive signal path length;
• and
• characterized by a second phase delay for a received signal coupled from the antenna to the second signal processor;
• and
• a self-receive chain:
• electromagnetically coupling the signal generator to the first signal processor;
• comprising a self-receive signal path length substantially similar to the receive signal path length;
• and
• configured to effect a third phase delay for a self-receive signal coupled from the signal generator to the first signal processor, the third phase delay substantially similar to the first phase delay and the second phase delay.

A system for generating a self-receive signal comprising:

• a signal generator;
• a set of signal processors;
• an antenna;
• a transmit chain:
• electromagnetically coupling the signal generator to the antenna;
• and
• configured to effect a first phase delay for a transmitted signal coupled from the signal generator to the antenna;
• a receive chain:
• electromagnetically coupling the antenna to a processor in the set of signal processors via a first passive coupling device;
• characterizing a first propagation delay defined by a receive signal path length;
• and
• characterized by a second phase delay for a receive signal coupled from the antenna to the set of signal processors;
• and
• a self-receive chain:
• electromagnetically coupling the signal generator to the set of signal processors via a second passive coupling device;
• characterizing a second propagation delay defined by a self-receive signal path length substantially similar to the first propagation delay, the first and second propagation delays specifying a time-of-arrival of the receive signal and a self-receive signal at a transceiver associated with the system;
• and
• configured to effect a third phase delay for the self-receive signal coupled from the signal generator to the set of signal processors, the third phase delay substantially similar to the first phase delay and the second phase delay.