ID |
原文 |
译文 |
19825 |
针对基于非正交多址接入(NOMA)技术的中继通信系统,在兼顾系统性能与计算复杂度的基础上,该文提出一种结合统计信道信息(S-CSI)和瞬时信道信息(I-CSI)的混合功率分配策略(H-PAS)来有效实现上述折中。 |
A novel scheme termed Hybrid Power Allocation Strategy (H-PAS), which is integrated with Statistical Channel State Information (S-CSI) and Instantaneous Channel State Information (I-CSI), is proposed for Non-Orthogonal Multiple Access (NOMA) based on cooperative relaying systems to achieve a better performance-complexity tradeoff. |
19826 |
仿真结果表明,NOMA方案在H-PAS策略下,一方面比单纯利用S-CSI时的传统正交多址接入技术具有更高的频谱效率; |
Simulation results demonstrate that, with the proposed H-PAS, on the one hand, NOMA shows distinct advantage on the sum-rate compared with conventional orthogonal multiple access techniques in which only the knowledge of S-CSI is available; |
19827 |
另一方面在和速率差别不大的情况下,又比单纯利用I-CSI时的NOMA方案具有更低的信令开销和计算复杂度。 |
On the other hand, NOMA reduces the signaling overhead and computational complexity at the expense of marginal sum rate degradation when compared with the cases in which only the knowledge of I-CSI is available for it. |
19828 |
针对常规最大类间方差法在多阈值图像分割中存在的运算量大、计算时间长、分割精度较低等问题,该文提出一种基于改进的自适应差分演化(JADE)算法的2维Otsu多阈值分割法。 |
The multi-threshold image segmentation of the classical 2D maximal between-cluster variance method has deficiencies such as large computation, long calculation time, low segmentation precision and so on. Amulti-threshold segmentation of 2D Otsu based on improved Adaptive Differential Evolution (JADE) algorithm is proposed. |
19829 |
首先,为增强初始化种群的质量、提升控制参数的适应性,将混沌映射机制融入到JADE算法中; |
Firstly, in order to enhance the quality of the initialized population and improve the adaptabilityof the control parameters, the chaotic mapping mechanism is integrated into the JADE algorithm. |
19830 |
进而,通过该改进算法求解2维 Otsu 多阈值图像的最佳分割阈值; |
Furthermore, the optimal segmentation threshold of 2D Otsu multi-threshold image is solved by improvedJADE algorithm. |
19831 |
最终,将该算法与差分进化(DE), JADE,改进正弦参数自适应的差分进化(LSHADE-cnEpSin)以及增强的适应性微分变换差分进化(EFADE) 4种算法的2维Otsu多阈值图像分割进行比较。 |
Finally, the algorithm is compared with multi-threshold image segmentation method of 2DOtsu based on Differential Evolution (DE), JADE, Improved Differential Evolution with Adaptive Sinusoidal Parameters (LSHADE-cnEpSin) and Enhanced Adaptive Differential Transformation Differential Evolution(EFADE) algorithm. |
19832 |
实验结果表明,与其它4种算法相比,基于改进JADE算法的2维Otsu多阈值图像分割在分割速度以及精度上均有较明显的改善。 |
The experimental results show that compared with the other four algorithms, the multi-threshold image segmentation of 2D Otsu based on the improved JADE algorithm has a significant improvement in terms of segmentation speed and accuracy. |
19833 |
针对如何提高纸币识别率的问题,该文提出一种改进深度卷积神经网络(DCNN)的纸币识别算法。 |
In order to improve the recognition rate of banknotes, the improved banknote recognition algorithm based on Deep Convolutional Neural Network(DCNN) is proposed. |
19834 |
该算法首先通过融合迁移学习、带泄露整流(Leaky ReLU)函数、批量归一化(BN)和多层次残差单元构造深度卷积层,对输入的不同尺寸纸币进行稳定而快速的特征提取与学习; |
Firstly, the algorithm constructs a deepconvolution layer by integrating transfer learning, Leaky-Rectified Liner Unit (Leaky ReLU) function, BatchNormalization(BN) and multi-level residual unit that perform stable and fast feature extraction and learning oninput different size banknotes. |