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应用科学学报

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基于复合调制方式的AM广播

戚晨皓1，吴乐南1，张仕元2   

  1. 1.东南大学 信息科学与工程学院, 江苏 南京 210096;

    2.南京电子技术研究所,江苏 南京 210013

  • 收稿日期:2006-10-15 修回日期:2007-06-15 出版日期:2007-09-30 发布日期:2007-09-30

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

被引次数

8

摘要： 该文提出了一种采用复合调制方式的AM广播方案。在数字调幅广播的基础上，引入了一种窄带调制方式——最小附加波形键控，形成复合调制，充分利用了有限的频带资源。系统仿真结果表明，两种调制方式在一定条件下都能获得不错的误码率性能。

关键词: 最小附加波形键控, 直接序列扩频, 正交频分复用, 数字调幅广播

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