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时变多音干扰下TD-SCDMA系统性能分析 被引量：3

Performance Analysis of TD-SCDMA System in the Presence of Time-Varying Multi-Tone Jamming
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摘要 目前对多音干扰的分析主要是针对跳频通信系统开展的,并且通常假设干扰是不变的。该文对TD-SCDMA系统在时变多音干扰下的误码率性能进行了分析。考虑实际系统中干扰源的移动性,将干扰信道建模为时变瑞利衰落信道。分析了多普勒频移对系统性能的影响,推导了误码率公式,并通过计算机仿真验证了理论推导的正确性。理论分析和仿真结果表明,多普勒频移越大,系统干扰效果越差,该结果对干扰和抗干扰技术提供了理论基础。 The existing analyses of multi-tone jamming （MTJ） are mainly focused on the frequency hopping system, and assume that the jamming signal is time-invariant. In this paper, the bit error rate （BER） performance of the time division-synchronization code division multiple access （TD-SCDMA） system is analyzed in the presence of time-varying multi-tone jamming. The practical scenario where MTJ signal experiences time-varying Rayleigh fading channel is considered. The effect of the Doppler shift on the performance is studied. The BER expression is derived and validated by computer simulations. The simulation results show that the performance degrades as the Doppler shift increases. The study provides theoretical basis for jamming and anti-jamming technology.
作者 郝张红 赵宏志 邵士海 唐友喜
机构地区 电子科技大学通信抗干扰技术国家级重点实验室
出处 《电子科技大学学报》 EI CAS CSCD 北大核心 2014年第2期184-187,共4页 Journal of University of Electronic Science and Technology of China
基金 国家自然科学基金(61101034 61001087 61271164 U1035002/L05) 国家重大科技专项(2011ZX03001-006-01 2014ZX03003001-002 2012ZX03003010-003)
关键词 多普勒频移 多音干扰 TD-SCDMA 时变瑞利衰落信道 Doppler shift - -multi-tone jamming TD-SCDMA. time-varying Rayleigh fad：rag channel
分类号 TN911.4 [电子电信—通信与信息系统]
  • 相关文献

参考文献11

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二级参考文献4

共引文献4

同被引文献19

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电子科技大学学报
2014年 第2期

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