Simulation of CSS communication system in VLF atmospheric noise

Author

Yanjun Wu ; Huali Wang ; Lei Sun ; Guangjie Xu

Author_Institution

Coll. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

fYear

2013

fDate

23-25 March 2013

Firstpage

1580

Lastpage

1583

Abstract

Chirp spread spectrum (CSS) technique has been extensively studied in the application of Ultra-wide band (UWB). Considering the long distance propagation capacity and low intercepted probability of chirp signal, we propose to apply the CSS technique to the very low frequency (VLF) communication system. First, we discuss the CSS system based on fractional Fourier transform (FRFT), including the definition of FRFT and means of modulation and demodulation. Then we introduce an analytic model of VLF atmospheric noise presented by E C. Field [1] and generate atmospheric noise by MATLAB software. Finally, we perform simulation of the CSS communication system in atmospheric noise. The simulation results validate its feasibility.

Keywords

Fourier transforms; spread spectrum communication; ultra wideband communication; CSS communication system; VLF; atmospheric noise; chirp signal; chirp spread spectrum technique; fractional Fourier transform; long distance propagation capacity; low intercepted probability; ultra-wide band communication; very low frequency communication system; Atmospheric modeling; Cascading style sheets; Chirp; Communication systems; Demodulation; Fourier transforms; Noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Science and Technology (ICIST), 2013 International Conference on

Conference_Location

Yangzhou

Print_ISBN

978-1-4673-5137-9

Type

conf

DOI

10.1109/ICIST.2013.6747838

Filename

6747838