Journal of Applied Sciences

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AM Broadcasting Scheme Based on Compound Modulation

QI Chen-hao1, WU Le-nan1, ZHANG Shi-yuan2   

  1. 1.School of Information Science and Engineering, Southeast University, Nanjing 210096, China;
    2.Nanjing Research Institite of Electronics Technology, Nanjing 210013,China
  • Received:2006-10-15 Revised:2007-06-15 Online:2007-09-30 Published:2007-09-30

Abstract: A compound modulation scheme based on digital amplitude modulation broadcasting (DAMB) and very minimum additive waveform keying (VMAK) was discussed in the paper, which sufficiently utilized the limited AM bandwidth. Simulations show good BER performance of both modulation schemes under certain conditions.

Key words: VMAK, DSSS(direct sequence spread spectrum), OFDM, DAMB