Binary phase hopping based spreading code authentication technique

Abstract Civil receivers of Global Navigation Satellite System (GNSS) are vulnerable to spoofing and jamming attacks due their signal structures. The Spreading Code Authentication (SCA) technique is one the GNSS message encryption identity authentication techniques. Its robustness complexity in between Message (NMA) Encryption (NME)/Spreading (SCE). A commonly used spreading code inserts unpredictable chips into public code. This method changes structure, degrades correlation code, causes performance loss. paper proposes a binary phase hopping based technique, which can achieve without changing existing structure. Analysis shows that this reduce loss original has good compatibility with receiver architecture.