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LIANG Fu-lin, LUO Wei-xiong. New Iterated Decoding Algorithm Based on Differential Frequency Hopping System[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2005, 14(1): 27-31.
Citation: LIANG Fu-lin, LUO Wei-xiong. New Iterated Decoding Algorithm Based on Differential Frequency Hopping System[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2005, 14(1): 27-31.
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New Iterated Decoding Algorithm Based on Differential Frequency Hopping System

  • School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China

  • Received Date:2003-09-05
    Abstract
  • A new iterated decoding algorithm is proposed for differential frequency hopping(DFH) encoder concatenated with multi-frequency shift-key(MFSK) modulator. According to the character of the frequency hopping(FH) pattern trellis produced by DFH function, maximum a posteriori(MAP) probability theory is applied to realize the iterate decoding of it. Further, the initial conditions for the new iterate algorithm based on MAP algorithm are modified for better performance. Finally, the simulation result compared with that from traditional algorithms shows good anti-interference performance.
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    • References (8)
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