Patent ID: 7190711

Claim:
A receiver system for acquiring pseudo-noise (PN) spread signals, comprising: at least three receiver pseudo-noise (PN) component code generators PNx, PNy, PNz, wherein each PN component code generator is adapted to generate relatively prime PN component codes when compared with each of the other PN component code generators; a demodulator adapted to generate a normalized autonomous phase number (NAPN) associated with each relatively prime PN component code, wherein each NAPN comprises the form: b (sub PNx )*[ L (sub PNy*PNz )*MOD L (sub PNx )]=1 b (sub PNy )*[ L (sub PNx*PNz )*MOD L (sub PNy )]=1 b (sub PNz )*[ L (sub PNx*PNy )*MOD L (sub PNz )]=1 where b(sub PN)=NAPN of interest, and −[L(sub PN . . .*PN . . . )=epoch length of PN component codes; and a correlator adapted to correlate a received PN composite signal by advancing or withholding the received PN composite signal a number of chips determined from at least two of the NAPNs.