Patent ID: 8040276
Filing Date: 2011-10-18
Classification: G01S

Abstract:
1. A computer-implemented method for testing a GPS receiver, the method comprising: reading one or more GPS files from a computer memory, wherein each of the one or more GPS files contains data for a plurality of GPS satellites; receiving parameters for a GPS receiver; selecting two or more GPS satellites out of the plurality of GPS satellites; generating two or more GPS signals for the two or more GPS satellites, wherein each of the two or more GPS signals contains data for a respective GPS satellite of the two or more selected GPS satellites; operating on the two or more GPS signals using the received parameters for the GPS receiver to generate two or more calculated GPS signals; re-sampling each of the two or more calculated GPS signals to a common rate, wherein said re-sampling each of the calculated two or more GPS signals to the common rate comprises aligning each of the calculated two or more GPS signals to the common rate; adding the two or more re-sampled GPS signals together to create a composite GPS signal; generating the composite GPS signal using a hardware signal generator, wherein the composite GPS signal is operable to test the GPS receiver; and repeating said re-sampling, adding, and generating the composite GPS signal multiple times in an iterative manner to test the GPS receiver.