High-precision low-jitter clock recovery system

The invention discloses a high-precision low-jitter clock recovery system, which can recover a low-jitter clock in wireless communication, does not have the problem of clock lock loss under the condition of multiple relays, and is suitable for the condition of multi-relay transmission in scattering networking. The main part is a distributed digital phase-locked loop. An input asynchronous code stream clock is sampled and counted through a sending end local system high clock, an asynchronous code stream period count value with the sending end local clock as the reference is obtained, so that aclock error is obtained, and a current asynchronous code stream clock can be recovered in real time at a tapping end according to the clock error value; different from the previous design, a distributed digital phase-locked loop is adopted, and the phase discrimination precision is improved by utilizing high clock counting, so that the clock jitter is reduced to a high clock period. 本发明公开了一种高精度低抖动时钟恢复系统，能够在无线通信中恢复出低抖动时钟，以