The invention discloses a high-precision multi-node synchronous triggering
system and method, and relates to the technical field of
time synchronization and
signal triggering. The
system integrates a
White Rabbit synchronization technology and a TDC technology, a distributed architecture is constructed through a master node, slave nodes and a
White Rabbit switch, the master node receives multiple paths of trigger signals and quantizes time marks through the TDC technology, and the slave nodes realize subnanosecond synchronous response and output
delay and pulse width adjustable trigger signals based on a
White Rabbit network. The problems that a traditional multi-node triggering
system is low in synchronization precision, poor in
delay controllability, remarkable in temperature drift influence and the like are solved, 50ps-level
delay adjustment,
jitter between signals smaller than 15ps and 3ps / DEG C temperature drift control are achieved, and the requirements for high-precision synchronous triggering in the fields of precision measurement,
quantum communication, industrial
automation and the like are met.