(GPS terminology)

The difference between the phase of the incoming GPS carrier, corrected for Doppler shift, and the phase of a nominally constant reference frequency generated in the receiver.

For static positioning, The reconstructed carrier phase is sampled at epochs determined by a clock in the receiver. A change in the satellite to receiver distance of one wavelength of the GPS carrier (19cm for L1) results in a one cycle change in the phase of the reconstructed carrier.

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