High-frequency synchronizing signal dynamic correction method and device based on clock reference

The invention relates to the technical field of inertial navigation, and discloses a clock reference-based high-frequency synchronous signal dynamic correction method and device, so as to reduce the requirements of a system on a crystal oscillator and improve the accuracy of a generated high-frequency synchronous reference. The method comprises the following steps: dividing a reference pulse interval count value after N times of accumulation averaging by a quotient Q and a remainder R of a local synchronous clock target pulse frequency after a reference pulse can be stably and effectively captured; when the input capture effective identifier is 1, counting variables in a forced reset module are synchronized at the rising edge of the input reference pulse, and newly input quotient Q and remainder R values are latched; and then taking a quotient Q as a frequency number, and uniformly spreading a counting error caused by a remainder R to the first R continuous synchronization pulses to obtain a corrected synchro