ID 原文 译文
44356 针对混响条件下现有声源定位技术中麦克风数量必须大于声源数量的现状，提出了一种基于压缩感知的双麦克风混响多声源（至少 3 个声源）定位算法。 In traditional multi-source localization field, it is necessary to guarantee that the number of microphone is more than the number of source. To overcome this constraint, a dual-microphone multi-source localization algorithm-based on CS was proposed, where the number of sound source localized successfully was more than 3.
44357 将多声源定位问题看作是块稀疏信号的重构问题，在频域将全房间冲激响应归一化来构造压缩观测矩阵，重构的块稀疏信号中非零块的位置即对应了空间中实际声源的位置。 The multi-source localization was regarded as the block sparse signal reconstruction in this algorithm, and the full room impulse responses normalized were exploited to construct the compressed observation matrix in frequency domain. In reconstructed block sparse signal, the positions of non-zero blocks were corresponded to the positions of sound sources in space.
44358 仿真实验表明，与基于子带可控响应功率（SRP-sub）的多声源定位方法相比，在双麦克风混响条件下定位多声源，基于压缩感知的多声源定位算法的定位性能更高，在混响时间为 0.6 s 时，仅采用 40 个频点值，定位 3 个声源的成功率可以达到 80%。 The simulation shows that compared with the SRP-sub algorithm, in reverberation time 0.6s with dual-microphone, the proposed multi-source localization algorithm based on compressed sensing has higher capability which can reach 80% success rate by using 40 frequency points to localize 3 sound sources.
44359 针对能量受限中继系统的无线物理层安全问题，提出了一种基于无线信能同传的安全传输方案。 Taking into account the wireless physical layer security in energy-constrained relaying systems, a secure resource allocation scheme was proposed under simultaneous wireless information and power transfer (SWIPT) protocol.
44360 该方案在节点传输功率和中继收集能量等条件共同约束下，通过对功率分配因子和传输功率等参数的联合优化来实现系统保密速率最大化。 The utility optimization problem was considered aiming to maximize the secrecy rate by jointly optimizing the power splitting (PS) ratio and the transmit powers under the constraint of the transmit powers of the nodes and the harvested energy of the relay.
44361 对于提出的非凸优化问题，首先采用分步优化方法分别优化功率分配因子和传输功率，得到其闭式解，然后使用收敛迭代算法求出原问题的次优解。 The objective problem, which is non-convex, was decoupled into two sub-problems. One was to optimize the PS ratio, another was to optimize the transmit powers. The optimal solution of the sub-problems can be obtained in the closed-form. Then,the sub-optimal solution is obtained with the proposed convergent iterative algorithm.
44362 数值仿真分析了人工噪声强度、剩余自干扰大小、节点传输功率及中继放大倍数等不同因素对系统安全性能的影响。 Simulation results show the effects of artificial noise signal, residual self-interference signal, transmit power of nodes, amplification factor of relay and other factors on the security performance.
44363 与传统的梯度下降法相比，所提联合优化算法在性能略好的前提下可降低时间复杂度 80%以上。 Compared with the traditional gradient descent algorithm, the proposed algorithm can reduce more than 80% of the computational load, while the algorithm has the slightly better performance.
44364 随着电力行业的飞速发展，电力系统中出现极具危害的混沌振荡可能性增大，维持电力系统稳定的重要性日益突出。 With the rapid development of the power industry, the possibility of chaotic oscillation increases in the power system, and the importance of maintaining the stability of the power system is prominent.
44365 通过建立含功率扰动项的四阶电力系统模型，对 Lyapunov 指数、分岔图和谱熵等进行分析，讨论了功率扰动项的加入对电力系统运动状态的影响 。 Through a fourth-order power system model with power perturbation term built, the Lyapunov exponent spectrum, bifurcation diagram and spectral entropy were analyzed, respectively. The influence of power disturbance terms on power system motion was discussed in detail.