ID 原文 译文
47306 在瑞利衰落信道环境下，通过理论分析给出所有中继链路特性均属于同一情况下的中断概率闭合解析式，同时也理论推导了一般放大重传和直接传输系统中断概率解析式。 Closed-form expressions of the system outage probability with the new proposed scheme as well as the amplify-and-forward(AF) based PNC system and the conventional direct transmission were derived over frequency-nonselective Rayleigh fadingchannels.
47307 在此基础上，完成了数值仿真实验，结果表明所提策略的中断性能与非自适应系统、一般放大重传和直接传输系统相比有较大优势。 Simulation experiments are conducted and the results show that the outage performance of the system can beimprovedsignificantlycomparedtotheAF basedPNCsystemandtheconventionaldirecttransmissionscheme.
47308 循环码是线性分组码中最重要的一个子类， Cyclic codes are an extremely important subclass of linear codes.
47309 由于其具有代数结构清晰、编译码简单且易于实现，被广泛地应用于通信系统和储存设备中。 They are widely used in the communicationsystems and data storage systems because they have efficient encoding and decoding algorithm.
47310 目前，大部分已有的研究工作最多只能实现三元最优循环码，对五元循环码的研究工作较少。 Until now, how toconstruct the optimal ternary cyclic codes has received a lot of attention and much progress has been made.
47311 对一类五元最优循环码(1, , ) e tC 进行研究。 However,there is less research about the optimal quinary cyclic codes.
47312 首先，给出一种有效且快速判断五元循环码(1, , ) e tC 是否最优的方法； Firstly, an efficient method to determine if cycliccodes(1, , ) e tCwere optimal codes was obtained.
47313 其次，基于提出的方法得到当 5 1ke   及 5 2me   时，循环码(1, , ) e tC 为最优循环码； Secondly, based on the proposed method, when the equation5 1ke = +or5 2me = -hold, the theorem that the cyclic codes(1, , ) e tCwere optimal quinary cyclic codes was proved.
47314 最后，基于有限域5 mF 中的完全非线性函数，构造一类具有参数 5 1,5 2 2,4m mm      的五元最优循环码。 In addition,perfect nonlinear monomials were used to construct optimal quinary cyclic codes with parameters [5 1,5 2 2,4]m mm - - -optimal quinary cyclic codes over5 mF.
47315 针对低信噪比、强混响环境中声源跟踪误差较大的问题，提出一种基于检测前跟踪的声源跟踪算法。 In order to improve tracking performance in a noisy and reverberant environment，an acoustic source trackingalgorithm using track before detect was proposed.