ID 原文 译文
21865 首先在接收端对 TDDM-BOC 信号求循环自相关函数，再在频域累积，通过检测不同切片上的谱峰间隔，可以同时估计以上多个参数。 Firstly, the cyclic autocorrelation of received TDDM-BOC signal is computed, then frequency domain accumulation is used to reduce the influence of noise. Finally, through interval measurement between the peak pulses in different slices, parameters mentioned above can be estimated.
21866 仿真实验证明了改进型的循环自相关算法能在低信噪比下达到较为精确的估计性能，这为我国“北斗”导航接收机的研发提供了一定的理论参考。 Simulation results show that the proposed algorithm is effective and works well under the condition of low Signal-to-Noise Ratio (SNR), which has a certain reference value for Bei-dou navigation receiver design.
21867 针对复杂产品生产业务调度这一问题，该文运用工作流技术并以完工时间为约束，提出一种虚拟迭代归约算法，能较好地在完工时间约束下优化生产精确率。 For the problem of the production of complex operations, this paper uses workflow technology and takes the completion time as constraint, and proposes a Virtual Iterative Reduction Algorithm (VIRA) to achieve better production accuracy in the constraint completion time.
21868 通过将各制约任务抽象虚拟成一个虚拟节点，采用逆向迭代的求解方式，确定了一条兼顾完工时间与生产精确率的调度路径。 By virtualizing tasks in mutual constraint into a virtual node, the algorithm uses inverse iterative way to determine a path that completion time and production accuracy get balance.
21869 对比发现，虚拟迭代归约算法对全局生产精确率有较大幅度的提高，且通过改变截止期、任务数等参数可以提高算法的效率。 By comparison, the virtual iterative reduction algorithm can increase the production accuracy in the constraint completion time, and it is found to improve the accuracy of the algorithm by changing the deadline, the number of tasks and other parameters.
21870 该文研究了一类取模运算的1维离散动力系统，提出了一个这类离散映射的混沌判据，利用Marotto定理证明了其混沌的存在性。 A novel one-dimensional discrete chaotic criterion is firstly constructed by studying the modular operation of the discrete dynamical systems. The judgement of the Marotto theorem is used to prove that the suggested dynamical systems are chaotic.
21871 给出了几个满足该判据的特殊形式的系统，分析了其分岔图、Lyapunov指数谱等基本动力学性质，通过模拟结果验证了理论的正确性。 Secondly, several special chaotic systems satisfied with the conditions of this paper are given, and the bifurcation diagram and Lyapunov exponential spectrum are also analyzed. Numerical simulations show that the proposed chaotic systems have the positive Lyapunov exponent, which indicates the accuracy of the proposed theory.
21872 基于新系统设计了一个伪随机数发生器(PRNG), SP800-22随机性检测结果表明了该序列具有良好的伪随机性。 Additionally, a Pseudo-Random Number Generator (PRNG) is also designed based on the given new chaotic system. Using SP800-22 test suit, the results show that the output sequence of PRNG has good pseudo random.
21873 进一步给出了一个图像加密方案，其密钥空间可以达到2747。该文提出的新系统的系统参数可以无穷多，所以理论上该加密方案的密钥空间可以无穷大。 Finally, as an application of the PRNG, an image encryption algorithm is given. The proposed encryption scheme is highly secure Key space of 2747 and can resist against the statistical and exhaustive attacks based on the experimental results.
21874 为了降低译码时的计算复杂度以及减少译码时间，该文通过对牛顿恒等式进行推导得到了(41, 21, 9)QR码不需要计算未知校验子就可求得错误位置多项式系数的代数译码算法，同时也针对改善部分客观地给出了计算复杂度的理论分析。 In order to reduce the computational complexity of computing unknown syndromes for the coefficients of the error-locator polynomial and reduce the decoding time when one is decoding, this paper proposed an algebraic decoding algorithm of (41, 21, 9) QR code without calculating the unknown syndromes by solving the Newtonian identity. Simultaneously, an objective theoretical analysis of the computational complexity is given for the part of improvement.