ID 原文 译文
17795 该算法主要包括两部分，一部分为子信道内用户功率分配因子的求解，主要利用差分优化的方法，迭代求解。 The scheme contains mainly two parts. One is the power allocationbetween the users at the same sub-channel, where Difference of Convex (DC) functions -programming isexploited to solve the problem.
17796 另一部分为子信道间的功率分配，主要利用凹凸程序法将原有的非凸问题简化为可解的凸问题，最后利用拉格朗日求解法得出功率最优解。 Another is the power allocation between the sub-channels, in whichConCave–Convex Procedure (CCCP) method and Lagrangian multiplier method are combined to solve theproblem.
17797 仿真结果表明该算法有良好的迭代性，且新算法表明利用NOMA技术得到的系统能效较利用正交技术得到的系统能效提高了至少44%以上。 The simulation results show that the fast convergence property, and demonstrate that the EE obtained by the proposed algorithms based on NOMA is at least 44% higher than that obtained by the conventional orthogonal multiple access scheme.
17798 数字控制在电力电子领域的优势使得数字脉冲宽度调制的使用日益增加，然而其分辨率不足一直是制约开关电源领域中数字控制技术发展的主要因素之一。 The advantages of digital control in the field of power electronics lead to an increasing use of DigitalPulse Width Modulation (DPWM). However, the insufficient resolution of DPWM is one of the main factorsthat constrain the development of digital control technology in the field of switch mode power supplies.
17799 针对高分辨率数字脉冲宽度调制的应用需求，该文提出一种基于高速进位链结构的高分辨率数字脉冲宽度调制电路。 For theapplication requirements of high-resolution DPWM, this paper proposes a high-resolution DPWM circuit basedon high-speed carry chain structure.
17800 该电路采用计数器、比较器、固定相移锁相环单元及高速进位链的混合结构，有效地提高了分辨率，并在Altera的Cyclone IV低成本现场可编程门阵列器件上实现。 The circuit comprises of counters, comparators, fixed phase shift PLL unitsand high-speed carry chains, which can effectively increase resolution. The circuit is also implemented onAltera’s Cyclone IV low-cost Field-Programmable Gate Array (FPGA) devices.
17801 实验结果显示，当输入参考时钟工作频率为70 MHz时，该结构的分辨率可达到56 ps。 The experimental results show that the resolution of the structure can reach 56 ps with 70 MHz input reference clock.
17802 此外，该电路还具有较宽的开关频率调节范围及较好的线性度等优点。 In addition, the circuitalso has wide switching frequency adjustment range and good linearity.
17803 公钥加密等值测试(PKEET)可以实现云环境下不同公钥加密数据之间的密文等值比较，即不对密文解密的情况下测试两个密文对应的明文是否一致。 Public Key Encryption with Equality Test (PKEET) is an important method to achieve the equality test of cipher texts which are generated by the different public key aiming to the same plaintext in cloud environment.
17804 但是，密文等值测试加密不提供关键字密文搜索功能。 In other words, it can tests the plaintext corresponding to the two cipher text’s equivalence without decrypting the cipher text, but does not supply the searchable function.