Autonomous parameter-varying communication synchronization method and system based on external clock

An autonomous parameter-varying communication synchronization system based on an external clock, comprising:

• a local clock synchronization module, configured to obtain, by two communication parties, a signal of a same external clock source, and give the signal to respective device timestamps to synchronize local clocks of the two communication parties;
• a two-way communication link establishing module, configured to:
• based on synchronous clocks, autonomously establish, by the two communication parties, a two-way communication link;
• a parameter-varying transmitting and receiving module, configured to:
• based on synchronous clocks, perform parameter-varying transmitting and receiving by the two communication parties;
• an interference detection module, configured to:
• perform, by the two communication parties, interference detection on a receiving frequency point through a receiving verification mechanism, and determine the validity of a received data packet;
• and
• a clock correcting or maintaining module, configured to:
• compare, respectively by the two communication parties, a difference value between a local receiving time of the own party and a parameter-varying transmitting time of the other party, correct the local clock if the difference value is greater than a preset threshold, and maintain the current synchronous clock if the difference value is less than the preset threshold.