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基于双Gold序列的TDCS基函数伪随机相位生成方法 被引量:2

A pseudorandom phase generation method of TDCS basis function based on double gold sequences
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摘要 为了提高变换域通信系统(transform domain communication system,TDCS)基函数的随机性与相关性,提出了采用双Gold序列控制产生变换域通信系统基函数伪随机相位的方法。首先通过Gold序列2控制产生相位映射抽头数,然后由Gold序列1映射产生基函数伪随机相位,所产生的基函数具有良好的类噪声性和相关性。仿真表明,与传统一维m序列产生方法相比,采用双Gold序列映射产生的基函数具有更好的随机性和相关性,可有效降低系统误码率,提高变换域通信系统抗截获能力,具有良好的多址接入性能。 A pseudorandom phase generation method is proposed to improve the randomness and correlation of basis function in TDCS (transform domain communication system),exploiting double Gold sequences to control phase mapping during the basis function generation.First,the Gold sequences 2 control the mapping tap number,meanwhile,the Gold sequences 1 map the basis function’s pseudorandom phase.It is shown that the basis function generated with double Gold sequences presents better ran-domness and correlation than one-dimensional m sequences.Thereby,the performance of TDCS on BER (bit error rate),anti-in-terception and multiple access channel capacity would be improved.
出处 《中国科技论文》 CAS 北大核心 2014年第7期784-787,共4页 China Sciencepaper
基金 国家自然科学基金资助项目(61202490) 航空科学基金资助项目(2013ZC15008)
关键词 变换域通信系统 基函数 双gold序列 伪随机相位 抗截获 多址接入 TDCS basis function double gold sequences pseudorandom phase low probability of intercept multiple access
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参考文献10

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共引文献15

同被引文献27

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