ID 原文 译文
21705 现有的射频能量源移动供电方案中,能量源可以无限制地沿任何方向行进到网络区域内的任一位置来给节点供电。 In the existing charging schemes using the mobile RF Energy Transmitter (ET), ET can move to any location alongany moving direction in the monitoring area for energy provision.
21706 然而在现实场景中,能量源通常只能沿着既有道路行进。 However, in the practical scenario, ET canonly move along the existing roads.
21707 考虑能量源行进路径约束下的供电总时延最小化问题,分别提出全程移动供电方案和部分位置停留供电方案,并提出高效算法来确定这两个方案的最佳行进路径和供电时间。 For the first time, the charging time minimization issue is considered under the moving trajectory constraint. The Mobile Charging (MC) scheme where ET transmits RF energy while moving and the Static Charging (SC) scheme where ET transmits RF energy while unmoving are proposed, whose the moving trajectory and energy provision time are optimized by the proposed efficient algorithms.
21708 仿真结果表明,两种方案的供电总时延均显著优于转折点供电基准方案。 Simulation results reveal that the total charging delay of proposed schemes is smaller than the baseline scheme of transmitting energy at turning points.
21709 相比于部分位置停留供电方案,全程移动供电方案的计算复杂度较低,但供电总时延更长一些。 The MC scheme has lower computational complexity but has a slightly larger charging delay as compared to the SC scheme.
21710 传统逆合成孔径雷达(ISAR)成像算法忽略了目标回波的高阶转动相位的影响,导致方位向聚焦效果较差,且无法直接从目标图像中获取目标尺寸信息。 Traditional Inverse SAR (ISAR) imaging algorithms neglect the impact of high-order rotational phase in the signal, which may make ISAR images of a target defocused. Further, the size of a target can not be obtained from ISAR image directly.
21711 该文提出一种转动补偿和方位定标方法。 In this study, an effective method to achieve the rotation compensation and cross-range scaling for ISAR imaging is proposed.
21712 该方法采用回波的全部方位信息,通过构造局部平均多普勒趋势(LADT)信号获取目标回波的多普勒变化趋势。 Firstly, all the signals of the target are used to form the Local Average Doppler Trend (LADT) signal.
21713 进一步利用随机采样一致(RANSAC)算法估计多普勒调频率及目标有效转动速度,实现高精度转动补偿与方位定标。 Subsequently, RANdom SAmple Consensus (RANSAC) algorithm is performed to estimate the Doppler rate and effective rotational velocity. Finally, high-precision rotation compensation and cross-range scaling can be accomplished.
21714 仿真与实测数据实验验证了该方法的有效性。 Simulation and real data experiments validate the effectiveness of the proposed method.