ID 原文 译文
46866 首先，分析了哈达玛变换的特性，从率失真理论的角度入手，以 SATD 为失真测量尺度，建立了一种新的拉格朗日因子计算方法。 The characteristic of Hadamard transform was first analyzed, andfollowing the new Lagrange multiplier calculation approach based on the distortion measurement of SATD was con-structed according to the rate-distortion theory.
46867 其次，结合离散余弦变换原理，推导出所提方法中涉及的参数获取途径。 Then combing the principle of discrete cosine transform, the related pa-rameters were obtained by the formula derivation.
46868 实验结果表明，所提算法可以更准确地进行帧内预测模式判决，在同等码率的情况下可以有效地提高重构视频质量。 Experimental results show that the proposed method supports moreaccurately intra prediction mode decision, and the reconstruction video quality is improved in average while keeping thesame bit-rate.
46869 提出了高速场景下基于到达角（DoA, direction of arrival）的大规模多输入多输出（MIMO，multiple inputmultiple output）波束成形设计。 A direction of arrival based (DoA-based) beamforming of massive MIMO was proposed for high-speed rail-way scenarios.
46870 同时，为了保证高铁在运行过程中获得最佳的系统容量，提出一种迭代的最优多波束选择方法。 In order to guarantee that the optimal system capacity can be obtained during traveling, an iterative mul-ti-beams scheme was proposed.
46871 该方法能实时跟踪高铁不同的移动车厢终端（MCT, mobile carriage terminal）， It aimed to design different beams for different mobile carriage terminals (MCT) respec-tively.
46872 自适应选择不同波束所需的发射天线数和自适应调节波束总数目， The proposal adaptively selected the number of antennas for each beam, and adaptively designed the number ofbeams according to system capacity.
46873 且不需要信道状态信息（CSI, channel state information），从而降低系统复杂度和节省开销。 Moreover, the scheme didn’t need channel state information (CSI) that can reducesystem implementation complexity and cost.
46874 数值结果表明，与传统方法相比所提方法能有效适应高速移动场景，提高系统容量。 Numerical results indicate that the proposed scheme is suitable forhigh-speed scenarios, the system performance can be improved more efficiently compared to conventional methods.
46875 为解决当前车联网中匿名认证的效率问题，利用椭圆曲线上的双线性对的性质，提出一种批量匿名认证方案。 To solve the problem of efficiency of anonymous authentication in vehicular ad hoc network, a batch ano-nymous authentication scheme was proposed by using bilinear pairing on elliptic curves.