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CAPS satellite spread spectrum communication blind multi-user detecting system based on chaotic sequences

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Abstract

Multiple Path Interference (MPI) and Multiple Access Interference (MAI) are important factors that affect the performance of Chinese Area Positioning System (CAPS). These problems can be solved by using spreading sequences with ideal properties and multi-user detectors. Chaotic sequences based on Chebyshev map are studied and the satellite communication system model is set up to investigate the application of chaotic sequences for CAPS in this paper. Simulation results show that chaotic sequences have desirable correlation properties and it is easy to generate a large number of chaotic sequences with good security. It has great practical value to apply chaotic sequences to CAPS together with multi-user detecting technology and the system performance can be improved greatly.

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Authors and Affiliations

  1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China

    LiHua Lei, HuLi Shi & GuanYi Ma

  2. Chinese Academy of Sciences, Beijing, 100049, China

    LiHua Lei, HuLi Shi & GuanYi Ma

Authors
  1. LiHua Lei
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  2. HuLi Shi
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  3. GuanYi Ma
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Correspondence to LiHua Lei.

Additional information

Supported by the National Basic Research Program of China (Grant No. 2007CB815500) and the National High Technology Research and Development Program of China (Grant No. 2007AA12z343)

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Lei, L., Shi, H. & Ma, G. CAPS satellite spread spectrum communication blind multi-user detecting system based on chaotic sequences. Sci. China Ser. G-Phys. Mech. Astron. 52, 339–345 (2009). https://doi.org/10.1007/s11433-009-0050-0

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  • DOI: https://doi.org/10.1007/s11433-009-0050-0

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