Simulation of Algorithm of Binary Offset Carrier Signal

摘要

BOC (Binary Offset Carrier) modulation accommodates to the new requirement of satellite navigation development. It can improve the precision of the measurement and also possess the higher ability of anti-interference. This paper covers the studies on the theory and characteristic of BOC signal, on the frequency spectrum, power spectrum and autocorrelation of BOC modulation, on the principle of BOC acquisition, and on the principle of BOC tracking from the sight of carrier tracking and code tracking separately. The simulation results are shown such as BOC signal based on BOC modulation, the acquisition of BOC signal based on the method of parallel code phase search acquisition, both carrier tracking loop and bump-jump code tracking loop, and acquisition signal tracking based on the above two loops. Finally organizing and analyzing the acquired statistics are given.