视频传输系统抗多音干扰能力的探析  

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

作　　者：杨永杰[1] 

机构地区：[1]南通大学电子信息学院,江苏南通226007

出　　处：《计算机工程与应用》2009年第12期117-119,共3页Computer Engineering and Applications

基　　金：江苏省科技厅社会发展项目(No.BG2007034);南通市应用研究计划项目(K2006010);江苏省青蓝工程

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。Orthogonal Frequency-Division Muhiplexing（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.

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 

分 类 号：TN914[电子电信—通信与信息系统]