ID 原文 译文
57718 8% . 8% .
57719 针对物联网智能终端的低功耗需求，提出了一种基于内存控制器扩展的低功耗混合内存系统. In order to satisfy the low power requirements of IoT devices，a low power hybrid main memory system composed of dynamic random access memory and phase change memory is proposed.
57720 使用动态随机存储器和相变存储器构成混合内存结构，通过在内存控制器中添加迁移控制模块对混合内存进行管理. The hybrid main memory is managed by the hybrid memory control modules which are added to the memory control- ler.
57721 设计了一种改进的双队列算法，筛选出相变存储器中写请求较多的内存页面，并通过地址映射模块和迁移控制模块将写请求较多的页面从相变存储器迁移到动态随机存储器中，规避相变存储器写操作的缺陷，从而实现对低功耗混合内存系统的性能优化. An improved dual queue algorithm is proposed to filter out memory pages with more write requests from phase change memory. Because of the poor write performance of phase change memory，the page migration module migrates the selected pages from phase change memory to dynamic random access mem- ory. And then the updated page address is recorded in the address mapping table for subsequent memory access.
57722 仿真结果表明，与动态随机存储器构成的内存系统相比，混合内存系统的功耗延时积平均降低了 43.9% ，在面向边缘计算的应用场景中具有一定的可行性. Experimental results show that compared with the traditional main memory composed entirely of dynamic random access memory，the hybrid main memory reduces the power-delay product by 43. 9% on average.
57723 在传输线系统电磁脉冲( EMP) 响应的精确计算中，通常必须将端接负载的频变效应考虑在内，为此提出了一种端接频变负载传输线系统电磁脉冲响应的数值算法. In the calculation of transmission line systems response to electromagnetic pulse ( EMP) ，thefrequency-dependent effect of terminated loads should be considered. A numerical algorithm for a transmission line system terminated with frequency-dependent loads exposed to EMP is proposed.
57724 首先，应用矢量网络分析仪或阻抗分析仪测试或计算得到端接频变负载电路的幅频特性和相频特性; Firstly，theamplitude-frequency characteristics and phase-frequency characteristics of frequency-dependent loads arecaptured by vector network analyzer.
57725 然后，应用矢量匹配( VF) 法对幅频特性和相频特性进行拟合，得到一系列极点、留数和常数项; Then the measured data are expressed by a series of rational formulas based on residuals and poles derived by vector fitting ( VF) method.
57726 最后，结合拟合得到的数据，应用时域有限差分( FDTD) 法建立端接频变负载传输线系统的数值模型，并应用到分段线性递归卷积技术以提高卷积计算效率. Lastly discrete equations for thesystem are derived based on finite-difference time-domain ( FDTD) method. In the proposed algorithm，piecewise linear recursive convolution technique is employed to simplify the computation of convolutionformulas.
57727 所提算法具有较高的计算效率和精度，可应用于多种端接频变负载传输线系统电磁脉冲响应计算. The simulated results show a well consistency with the theory. Compared the other algorithm，this method increases the efficiency and accuracy，and has a broad application prospect in frequency-dependent systems.