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伪随机三元阵列偶理论研究 总被引:1,自引:0,他引:1
文中提出了一种新的具有良好循环相关特性的离散信号,即伪随机三元阵列偶。首先给出了伪随机三元阵列偶的相关定义;然后研究了伪随机三元阵列偶的变换性质和频谱特性;而且,为了减小搜索范围,提高搜索效率,给出了伪随机三元阵列偶存在的必要条件;最后证明了伪随机三元阵列偶的唯一性,并给出了一种构造伪随机三元阵列偶的方法。 相似文献
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最佳二进阵列偶理论研究 总被引:84,自引:11,他引:73
提出了阵列偶和阵列偶自相关函数的概念,定义了最佳二进阵列偶;讨论了二进阵列偶体积、变换性质以及一类最佳二进阵列偶,得到了最佳二进阵列偶存在的必要条件,给出了小体积的最佳二进阵列偶。 相似文献
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Lower Bounds on Correlation of Z-Complementary Code Sets 总被引:1,自引:0,他引:1
A set of binary codes is called a Z-complementary code set if the sum of the autocorrelation functions of the codes involved is zero in the zero correlation zone (ZCZ) except at zero shift. Comparing to the traditional complementary code sets, the Z-complementary code sets not only have more freedom on the code length, but also have much more mates. In this paper, lower bounds on periodic/aperiodic correlation of Z-complementary binary code sets with respect to the number of mates, family size, sequence length, the length of ZCZ, maximum periodic/aperiodic autocorrelation sidelobe inside the ZCZ and maximum periodic/aperiodic crosscorrelation value inside the ZCZ, are derived. The proposed lower bounds provide theoretical criteria for designing, optimizing and choosing Z-complementary code set in applications. 相似文献