吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (02): 505-509.

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Realization method of non-sinusoidal orthogonal modulation in time domain based on reconstruction filtering

LIU Xi-guo1, WANG Hong-xing1,2, LIU Chuan-hui1, KANG Jia-fang1, MENG Xiao-fen3   

  1. 1. Department of Electronic and Information Engineering, Naval Aeronautical and Astronautical University, Yantai 264001, China;
    2. Key Laboratory on Signal & Information Processing of Shandong Province, Yantai 264001, China;
    3. Unit 91635 of PLA, Beijing 102249, China
  • Received:2010-11-08 Online:2012-03-01 Published:2012-03-01

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Abstract: To reduce the implementation complexity of Non-Sinusoidal Orthogonal Modulation in Time Domain (NSOMTD), a realization method based on the reconstruction filtering theory is proposed. By applying the reconstruction function of time limited and bandpass prolate spheroidal wave functions (TB-PSWF) to the modulator, the variable sampling speed modulation is realized for reducing the sampling points and increasing the working frequency. The hardware implementation scheme is presented; the reconstructing signals' precision and the modulation complexity are analyzed. The theoretical and simulation results show that the proposed method can reduce the complexity and the requirement of hardware resources than traditional method. The proposed method is flexible for realization.

Key words: communication, non-sinusoidal orthogonal modulation in time domain, prolate spheroidal wave functions, reconstructing, sampling theory

CLC Number: 

  • TN911
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