Unambiguous tracking technique for Sin-BOC(1,1) and MBOC(6,1,1/11) signals

A new unambiguous tracking technique for the sine-binary offset carrier (Sin-BOC(1,1)) and multiplexed binary offset carrier (MBOC(6,1,1/11)) signals is presented. This technique substitutes the combination of the auto-correlation function (ACF) and the absolute value of ACF (AACF) for the ACF in the coherent Early-minus-Late (EML) architecture loop. It can completely removes the side-peaks from the ACF of Sin-BOC(1,1) and MBOC(6,1,1/11) while still keeping the sharp main-peak, which maintains the multipath rejection property of the BOC modulation. The performances in terms of multipath mitigation are evaluated.