Observed value real-time data preprocessing method and system of satellite-borne GNSS receiver, medium and equipment

The invention provides an observed value real-time data preprocessing method and an observed value real-time data preprocessing system of a satellite-borne GNSS receiver, a medium and equipment. The observed value real-time data preprocessing method comprises the steps of: judging whether a carrier phase observed value of a current epoch i contains a cycle slip or gross error according to a presetcondition; storing the observed value containing the gross error or the cycle slip, and temporarily removing the observed value from the current epoch i; smoothing a code measurement pseudo-range observed value by using the processed carrier phase observed value; after an i+1 epoch observed value is received, further judging the observed value stored in an i epoch, distinguishing gross errorsand cycle slips, respectively performing corresponding processing, and calculating accumulated cycle slips of the current continuous observation arc section; and after cycle slip compensation is carried out on the i+1 epoch obser