Post-despreading preamble data of GPS satellites

This dataset is a large-scale, real-world collection of GPS L1 C/A signals designed specifically for physical layer security and spoofing detection research. Collected over a span of 19 months across geographically distinct environments, the dataset contains over 755,000 authentic GPS preamble sequences from 32 orbiting satellites, alongside spoofing signals generated via Software-Defined Radios (SDRs).