Method for rapidly seizing lock losing signals in satellite signal receiver

The invention relates to a method for rapidly seizing lock losing signals in a satellite signal receiver. The method includes that the satellite signal receiver judges whether satellite signal lock losing exists or not, and stores related priori information before satellite signal lock losing and enters a rapid seizing state if yes; the satellite signal receiver sets a corresponding predictive carrier frequency search center value, a corresponding predictive code phase center value and a corresponding search interval threshold value according to the stored related priori information; the satellite signal receiver reseizes lock losing satellite signals through Tong detection. The method for rapidly seizing the lock losing signals in the satellite signal receiver has the advantages that the problem of overlong satellite signal reseizing time after lock losing of the satellite signals currently is solved, and the method unlimited by equipment hardware can be applied to all navigation receiver products and is capable of making lock losing judgment and achieving reseizing positioning rapidly and reliably, so that receiver signal seizing efficiency is improved remarkably, and the method is wide in engineering application value.