Design of Short Synchronization Codes for Use in FutureGNSS System

[摘要] The prolific growth in civilian GNSS market initiated the modernization of GPS and theGLONASS systems in addition to the potential deployment of Galileo and Compass GNSS system.The modernization efforts include numerous signal structure innovations to ensure better performances over legacy GNSS system. The adoption of secondary short synchronization codesis one among these innovations that play an important role in spectral separation, bit synchronization, and narrowband interference protection. In this paper, we present a short synchronizationcode design based on the optimization of judiciously selected performance criteria. The newsynchronization codes were obtained for lengths up to 30 bits through exhaustive search andare characterized by optimal periodic correlation. More importantly, the presence of bettersynchronization codes over standardized GPS and Galileo codes corroborates the benefits andthe need for short synchronization code design.

[学科分类] 电子、光学、磁材料