OFDM与SC-FDE抗噪声脉冲干扰的性能比较  

Comparison of Anti-Pulse Jamming Performance for OFDM and SC-FDE

作　　者：邓雪群[1] 胡建平[2] 杨静[2] 曾富华[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054 [2]中国电子科技集团公司第十研究所,成都610036

出　　处：《电子信息对抗技术》2008年第2期34-37,69,共5页Electronic Information Warfare Technology

摘　　要：对宽带无线通信的两种解决方案:多载波正交频分复用(OFDM)和单载波频域均衡(SC-FDE)的抗噪声脉冲干扰性能进行理论分析,给出了理想情况下的误码率公式,仿真证实了推导的正确性。并得出以下结论:人为噪声脉冲干扰可使SC-FDE系统的误码率与信干比的指数关系恶化到反线性关系,OFDM系统因为在频域判决,反而具有一定的内在抗噪声脉冲干扰能力;人为噪声脉冲干扰对OFDM系统的影响却比SC-FDE系统大;纠错编码对两类系统的性能都有显著的改善。To combat the effects of multipath in broadband wireless communication, there are two modulation solutions： OFDM and SC-FDE. The anti-pulse jamming performance of the two systems is analyzed. The analytical derivation of the BER performance is derived and the results are compared with simulated results, which prove that the derivation is valid. The following conclusion is drawn： SC-FDE is better than OFDM for man-made noise, while OFDM outperforms SC-FDE for the natural; coding and interleaving can significantly improve their performance.

关 键 词：OFDM SC-FDE 噪声脉冲干扰 宽带通信 

分 类 号：TN973.3[电子电信—信号与信息处理]