Patent ID: 7472152

Claim:
The method of recovering electrical signal amplitude loss arising from frequency offset between a GPS electrical input signal and a bin center coefficient frequency of an electrical signal Fourier transformation frequency filtering operation applied to said GPS electrical input signal, said method comprising the steps of: performing an electrical signal Fourier transformation operation on said GPS electrical input signal to obtain a plurality of GPS input signal Fourier transformation coefficient electrical signals each relevant to a different Fourier transformation exponential term and a different bin center frequency in a plurality of overlapping Fourier transformation frequency bins defined by a corresponding plurality of said exponential terms; and substituting for a selected GPS input signal Fourier transformation coefficient electrical signal relating to an exponential term located in adjacent pairs of said overlapping Fourier transformation frequency bins, in a selected intermediate frequency location between two adjacent of said bin center frequencies, a substitute coefficient electrical signal determined from a combination of coefficient electrical signals relating to said exponential term located in adjacent pairs of said overlapping Fourier transformation frequency bins and to said GPS electrical input signal; communicating electrical output signals relating to said substitute coefficient electrical signal to one of an electrical signal responsive GPS data display and a GPS data utilization device.