吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (02): 526-531.

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Orthogonality of sinusoidal non-linear chirp keying signals

ZHOU Bin1, SUN Zhi-guo1,2, NING Xiao-yan1, GUO Li-li1   

  1. 1. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China;
    2. The State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100000, China
  • Received:2012-05-14 Online:2013-03-01 Published:2013-03-01

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Abstract: In order to obtain orthogonal signal set of Sinusoidal Non-linear Chirp Keying (SNCK), the mathematical correlation integral expression is derived, and solution to give an analytical formula with the Bessel function is found. Analysis of the orthogonality of SNCK signals with different period number of frequency variation curve, different time-bandwidth product and different frequency modulation polarity shows that the SNCK method can implement orthogonal modulation by flexibly selecting modulation parameters. A scheme to search for orthogonal signal set of SNCK is provided, which lays a foundation for multi-carrier parallel communication using SNCK signals.

Key words: communication, sine non-linear chirp keying(SNCK), orthogonality, Bessel function

CLC Number: 

  • TN911
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