Timing synchronization peak searching method and device

The invention discloses a method and device for searching peak values in a timing synchronization mode, relates to the technical field of communication, and solves the technical problem that STF timing synchronization accuracy is not enough. The main points of the technical scheme of the invention are that the method comprises the steps: carrying out the delay conjugate sliding autocorrelation operation on received signals through periodicity of STF symbols; performing weighted summation on the delay conjugate sliding autocorrelation result of each section according to the scrambling sequence of the STF to obtain a correlation result containing a peak value; taking the average energy as a threshold, and performing optimized peak search on the modulus values of the related results, so that the STF synchronization position can be found. According to the method and the device, the probability of finding false peaks or missing packets by STF timing synchronization in an external field environment is effectively r