Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (12): 117-119.DOI: 10.3778/j.issn.1002-8331.2009.12.038

• 网络、通信、安全 • Previous Articles     Next Articles

Discussion of performance of anti-multi tone jamming based on video transmission system

YANG Yong-jie   

  1. School of Electronics and Information,Nantong University,Nantong,Jiangsu 226007,China
  • Received:2008-02-28 Revised:2008-05-26 Online:2009-04-21 Published:2009-04-21
  • Contact: YANG Yong-jie

视频传输系统抗多音干扰能力的探析

杨永杰   

  1. 南通大学 电子信息学院,江苏 南通 226007
  • 通讯作者: 杨永杰

Abstract: Orthogonal Frequency-Division Multiplexing(OFDM) technology with the DCT encoding,orthogonal coding can make the transmitted video data extended to sub-bands of the each group,and this can improve the capacity of the well-narrowband jamming system.Experimental results show that,the coding method can not only make good use of the transmission of the video data,but also have a very clear-narrowband interference robustness.And the mistaken bit rate of system has been improved greatly.

Key words: anti-multi tone jamming, Discrete Cosine Transform(DCT) encoding, Orthogonal Frequency-Division Multiplexing(OFDM), bit rate

摘要: 将视频DCT编码和OFDM技术结合起来,通过正交编码将所传输的视频数据流扩展到各组子信道中,能够很好地提高系统的抗多音干扰能力。仿真结果表明,该编码方法不仅能很好地传输视频数据,还具有明显的抗多音干扰的鲁棒性,系统的误比特率改善也得到较大地提高。

关键词: 抗多音干扰, 离散余弦变换编码, 正交频分复用, 比特率