Patent ID: 6959057

Claim:
A method of enhancing signal tracking in a global positioning system receiver utilizing a multiple segment multiple frequency banked filter, the method comprising: acquiring a continuous time global positioning signal; separating the continuous time global positioning signal into in-phase and quadrature signals I and Q; sampling the signals I and Q over a predetection interval (PDI) to provide discrete time signals; generating from the discrete time signals a component in-phase measurement and a component quadrature measurement for each of a plurality of PDI segments of one PDI; for each of a plurality of different frequency bins, generating composite in-phase measurement by combining component in-phase measurements and component quadrature measurements from the PDI, and a composite quadrature measurement by combining component in-phase measurements and component quadrature measurements from the PDI; detecting power in each of the plurality of different frequency bins for the PDI using the corresponding composite in-phase measurement and the corresponding composite quadrature measurement generated for the frequency bin; and determining which one of the plurality of different frequency bins contains the highest detected power.