Generalized Theory and Decoupled Evaluation Criteria for Unmatched Despreading of Modernized GNSS Signals
AbstractIn order to provide better navigation service for a wide range of applications, modernized global navigation satellite systems (GNSS) employs increasingly advanced and complicated techniques in modulation and multiplexing of signals. This trend correspondingly increases the complexity of signal despreading at the receiver when matched receiving is used. Considering the numerous low-end receiver who can hardly afford such receiving complexity, it is feasible to apply some receiving strategies, which uses simplified forms of local despreading signals, which is termed unmatched despreading. However, the mismatch between local signal and received signal causes performance loss in code tracking, which is necessary to be considered in the theoretical evaluation methods of signals. In this context, we generalize the theoretical signal evaluation model for unmatched receiving. Then, a series of evaluation criteria are proposed, which are decoupled from unrelated influencing factors and concentrates on the key factors related to the signal and its receiving, thus better revealing the inherent performance of signals. The proposed evaluation criteria are used to study two GNSS signals, from which constructive guidance are derived for receivers and signal designer. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Zhang, J.; Yao, Z.; Lu, M. Generalized Theory and Decoupled Evaluation Criteria for Unmatched Despreading of Modernized GNSS Signals. Sensors 2016, 16, 1128.
Zhang J, Yao Z, Lu M. Generalized Theory and Decoupled Evaluation Criteria for Unmatched Despreading of Modernized GNSS Signals. Sensors. 2016; 16(7):1128.Chicago/Turabian Style
Zhang, Jiayi; Yao, Zheng; Lu, Mingquan. 2016. "Generalized Theory and Decoupled Evaluation Criteria for Unmatched Despreading of Modernized GNSS Signals." Sensors 16, no. 7: 1128.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.