Patent ID: 8102312

Claim:
A method for processing positioning signals, comprising: collecting, by a processor, a positioning signal sample including multi-bit epoch sequences from an object; determining, by the processor, an epoch of the signal sample that is most likely to correspond to a first epoch of a predetermined message data segment in the signal sample; selecting, by the processor, a segment of the signal sample that follows the first epoch and is equal in length to a length of the predetermined message data segment; aligning, by the processor, the selected segment of the signal sample with a replica of the predetermined message data segment; multiplying, by the processor, each signal sample value of the selected segment of the signal sample by a modulation sign of a corresponding epoch of the replica of the predetermined message data segment; integrating, by the processor, the multi-bit epoch sequences to generate an integration sum; and generating, by the processor, a time sequence for geolocation determination of the object through correlation of the integration sum.