ID 原文 译文
46476 导出了基于高斯混合模型和 EM 算法估计的多分量线性调频信号参数的迭代计算式。 The iterative parameter estimation steps based on Gaussian mixture model and EMalgorithm to measurements were established.
46477 仿真结果表明，在 2 个及以上分量情况下，弱分量信噪比不低于−3 dB 时，可在窄带情况下精确地估计出目标的投影尺寸等参数。 The simulation results demonstrate that when SNR is greater than −3dB and the SFM components are equal or greater than 2，the method can estimate the target’s micro-motion parameters e.g. projection size accurately in narrow band condition.
46478 在双向多中继 OFDM 网络中，提出了一种高信噪比下的功率分配与子载波配对的联合算法， A joint optimization scheme for power allocation and sub-carrier pairing under high SNR in two-way multi-relay OFDM system was proposed.
46479 与传统的基于中继选择的算法不同，允许所有中继转发同一子载波对，从而提高系统的额外分集增益。 Unlike those schemes in which relays use subcarriers separately, all the relays wereallowed to forward signal on each subcarrier pair for providing much space diversity.
46480 该算法在系统总功率受限的条件下，首先应用柯西不等式优化分配了所有中继总功率为定值时各个中继的最优功率，简化原有的最优系统模型； With the constraint of total systempower, the proposed scheme firstly allocated each relay power with Cauchy inequality with the assuming that the totalrelay power was fixed.
46481 再应用二分法，通过最大化不同子载波对下的等效信道增益计算出源节点与中继节点的功率分配； Then the dichotomy was used to calculate the power allocation between the source node and therelay node by maximizing the equivalent channel gain for different subcarrier pairs.
46482 最后通过凸规划分配不同子载波对的功率，并应用匈牙利算法进行子载波配对，获得最大的系统容量。 Lastly, the power of different subcar-rier pairs was allocated by convex programming, and the subcarriers were paired by Hungarian algorithm to obtain themaximum system capacity.
46483 由于双向多中继网络中功率分配算法过于复杂，目前尚没有计算复杂度较低的最优功率分配方式， There was no optimal power allocation method with low complexity because of the complex-ity of the power allocation algorithm in two-way multi-relay networks.
46484 该算法大大降低了功率分配的复杂度，并通过仿真结果表明其性能优于最优单中继选择算法和基于中继选择的功率分配算法。 This algorithm greatly reduces the complexity ofpower allocation and simulation results show that the proposed scheme outperforms the relay selection scheme and therelays use subcarriers separately scheme.
46485 针对轮流转发系统中非信任中继窃听的问题，提出一种基于中继间干扰消除的安全传输方案。 A secure scheme based on inter-relay interference cancellation was proposed to solve untrusted relay eave-sdropping problem in successive relaying systems.