Tracking Algorithm Base on Quadratic BOC

Binary Offset Carrier (BOC) modulated signal has multi-correlation peaks, whose S curve of Phase Detector (PD) having several cross-zero points, this can lead to do error judge on receiver tracking. So, a new tracking algorithm is proposed in this paper, it using the quadratic BOC to removing the effect of several cross-zero points on S curve. The comparing analysis and simulation is to conventional NELP and New algorithm. The result of simulation shows that, the new algorithms can solute the question of several cross-zero points on S curve, besides, the new algorithm can be used on the tracking of low or high or odd or even order BOC modulated signal, without adding complexity.