Method and system for testing electromagnetic compatibility of vehicle-mounted GNSS

The invention discloses a vehicle-mounted GNSS electromagnetic compatibility test method and a test system thereof. The test method comprises the following steps: carrying out analysis and processing according to actual conditions and environments of vehicle driving to obtain preset analog signals corresponding to various actual motion and environment scene conditions; the satellite simulator outputs a preset analog signal and signal format information corresponding to the analog signal; the to-be-tested vehicle-mounted GNSS receives the analog signal and processes the analog signal to obtain analysis format information; according to the test method provided by the invention, analysis and processing are carried out according to actual conditions and environments of vehicle driving to obtain preset analog signals corresponding to various actual motion and environment scene conditions, and whether the electromagnetic compatibility of the to-be-tested vehicle-mounted GNSS under respective motion conditions and e