A Flexible Modulation Scheme Design for C-Band GNSS Signals
Joint Authors
Xue, Rui
Cao, Qing-ming
Wei, Qiang
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-24
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Due to the spectrum congestion of current navigation signals in L-band, C-band has been taken into consideration as a candidate frequency band for global navigation satellite system (GNSS).
As is known, modulation scheme is the core part of signal structure, and how to design a modulation waveform that could make full use of narrow bandwidth 20 MHz and satisfy the constraint condition of frequency compatibility in C-band is the main research content of this paper.
In view of transmission characteristics and constraint condition of compatibility in C-band, multi-h continuous phase modulation (CPM) is proposed as a candidate modulation scheme.
Then the classical channel capacity estimation and a comprehensive evaluation criterion for GNSS modulation signals are employed to assess the proposed scheme in the aspects of the capacity over additive white Gaussian noise (AWGN), tracking accuracy, multipath mitigation, antijamming, and so on.
Simulation results reveal that, through optimizing the number and size of modulation indexes, the flexible scheme could offer better performance in terms of code tracking, multipath mitigation, and antijamming compared with other candidates such as MSK and GMSK while maintaining high band efficiency and moderate implementation complexity of receiver.
Moreover, this paper also provides a reference for next generation modulation signals in C-band.
American Psychological Association (APA)
Xue, Rui& Cao, Qing-ming& Wei, Qiang. 2015. A Flexible Modulation Scheme Design for C-Band GNSS Signals. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1073084
Modern Language Association (MLA)
Xue, Rui…[et al.]. A Flexible Modulation Scheme Design for C-Band GNSS Signals. Mathematical Problems in Engineering No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1073084
American Medical Association (AMA)
Xue, Rui& Cao, Qing-ming& Wei, Qiang. A Flexible Modulation Scheme Design for C-Band GNSS Signals. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1073084
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073084