Patent ID: 6397146
Filing Date: 2002-05-28
Classification: G01C,G01S

Abstract:
A method for compensating for acceleration in a GPS-inertial navigation system, a translated satellite signal being a satellite signal translated in the GPS receiver to an intermediate-frequency band by a sequence of M mixing operations, M being an integer greater than or equal to one, the m'th mixing operation consisting of mixing the satellite signal with an m'th mixing signal having a frequency fm where fm can be approximated by a function Fm, of one or more components A1, A2, and A3 of the acceleration and one or more parameters Pm1, Pm2, . . . , PmN(m) that are independent of acceleration, the method comprising the steps:(a) obtaining values for one or more components of acceleration; (b) obtaining values for one or more parameters; (c) determining the value of one or more functions Fm; (d) utilizing the data obtained in steps (a), (b), and (c) in compensating for the effects of acceleration in a GPS receiver.