›› 2011, Vol. 31 ›› Issue (4): 15-22.doi: 10.3780/j.issn.1000-758X.2011.04.003

Previous Articles     Next Articles

Design of New Signal System for Inter-satellite Links

 HE  Shan-Bao1, LIN  Yi-Ming1, WU  Le-Nan2, FENG  Man2, WANG  Ping1, CHEN  Zhong-Gui1, XIE  Jun1   

  1. (1 Beijing Institute of Spacecraft System Engineering, Beijing 100094)
    (2 School of Information Science & Engineering, Southeast University, Nanjing 210096)
  • Received:2011-03-20 Revised:2011-04-20 Online:2011-08-25 Published:2011-08-25

Abstract: A novel, special and highly efficient modulation system was proposed, which combined harmoniously EBPSK (Extended BPSK)modulation, digital impulsion filter, adaptive demodulation method and parametermatching technology. The signal system of GNSS ISLs with novel modulation and demodulation was simulated and analyzed. The results show that the integrated index (bit/s/Hz/SNR)of the new signal system outperforms other present systems. And many important parameters of the new signal system, such as rate, bandwidth and SNR, may change with space environment.

Key words: Ultra narrow band modulation, Signal system, Inter-satellite links, Navigation, Satellite