GNSS baseband capturing method

The invention relates to the technical field of satellite navigation, and discloses a GNSS baseband capture method, which comprises the following steps: carrying out primary capture on a baseband signal based on a capture engine to obtain a first capture set; performing secondary capture in a search area limited by the first capture set based on the capture engine to obtain a second capture set; calculating a code phase calculation value of each first peak value in the first capture set during secondary capture based on a code phase calculation method to obtain a code phase result set; calculating a deviation value between a code phase value in the code phase result set and a second code phase search value in the second capture set based on a deviation calculation method to obtain a deviation result set; and if the deviation value smaller than the preset threshold exists in the deviation result set, taking a first peak value corresponding to the deviation value as a capture result. According to the invention,