Analysis of secondary short codes for satellite navigation

The exponential growth in the global navigation satellite system (GNSS) initiated the way for modernization of GPS and the other GNSS including numerous signal structure innovations to ensure better performance measures over legacy GNSS systems. The adoption of the secondary short codes is one of these to accomplish data symbol synchronization, spectral separation and narrowband interference protection. In this paper, we study the generation and searching methods of secondary short codes based on the optimization of their relative performance measures. The merits of the generated codes have been compared with the standard existing codes using the same performance measures.