ID 原文 译文
40166 在紧标架为平移不变离散小波变换和轮廓波下，将快速迭代p阈值投影算法用于压缩感知磁共振成像。 When the tight frames are shift-invariant discrete wavelet transform and Contourlets, the projected fast iterative p-thresholding algorithm is used for compressed sensing magnetic resonance imaging.
40167 与光滑化的快速迭代软阈值算法、迭代软阈值投影算法和交替方向乘子法进行仿真对比分析的结果表明，快速迭代p阈值投影算法提高了磁共振成像的重建速度和重建质量。 Compared with the smoothed fast iterative soft thresholding algorithm, projected iterative soft thresholding algorithm and alternating direction multiplier method, simulation results show that the projected fast iterative p-thresholding algorithm promotes the reconstruction speed and the reconstruction quality of magnetic resonance imaging.
40168 分析了p值对算法性能的影响，给出了适合的p值选择方法，以获得较好的收敛速度、减小重构误差。 And the influence of the p value on the performance of the algorithm is analyzed, and a suitable p value selection method is given to obtain a better convergence speed and reduce the reconstruction error.
40169 以基于轻型无人机平台的空基定位系统实施干扰查找为应用背景，对多平台到达时差定位（Time difference of arrival， TDOA）实现机理进行了深入分析。 Under the application background of interference search in space-based positioning system based on light Unmanned aerial vehicle(UAV)-platform, the implementation mechanism of multi-platform time difference positioning(TDOA)is analyzed in detail.
40170 针对TDOA定位前无人机群快速抵达最佳定位区域，进而实现有效定位的问题，提出了一种基于接收信号强度（Received signal strength，RSS）定位辅助信息的TDOA定位方法，详细描述了定位流程和关键场景。 In order to solve the problem of UAV group arriving at the optimal positioning area quickly before TDOA location, and then realizing effective positioning, a TDOA positioning solution based on received signal strength(RSS)positioning auxiliary information is proposed, and the whole positioning process and key scenarios are described in detail.
40171 通过方法可行性论证和定位性能分析得出：该方法可在定位流程自动化实施顺利的前提下，使系统最长定位耗时控制在无人机的一个续航周期内。 Through the feasibility demonstration of the method and the analysis of the positioning performance, it is concluded that this method can make the maximum time of the whole positioning process controlled within a continuation cycle of the unmanned machine, under the premise of the smooth implementation of the automation of the positioning process.
40172 在基站和用户均采用多天线的混合波束成形架构、下行链路信道为理想毫米波信道的系统下，针对总频谱效率最大问题，提出了一种低复杂度的混合波束成形算法。 In a single-cell system where the base station and multiple users are multi-antenna hybrid beamforming architectures and the channel is an ideal millimeter-wave channel, aiming at the problem of maximum total spectral efficiency, a low-complexity hybrid beamforming algorithm is proposed.
40173 该方案采用分步的方式，首先进行基站端和用户端的模拟波束成形矩阵的分别求解，在得到模拟波束成形矩阵的基础上得到等效的基带信道，然后利用块对角化数字波束成形算法求解数字波束成形矩阵。 The program uses a step-by-step approach. First, the analog beamforming matrix of the base station and the mobile station is solved respectively. Baseband channel is obtained based on the analog beamforming matrix. Then the block diagonal digital beamforming algorithm is used to get the digital beamforming matrix.
40174 仿真结果表明，相比于其他方案，该方案在复杂度较低的同时，也提升了系统的总频谱效率。 Simulation results show that, compared with other schemes, this scheme also improves the overall spectrum efficiency of the system while reducing the complexity.
40175 多相码雷达信号特征相似，类间差距小，在低信噪比（Signal-to-noise ratio，SNR）下极易混淆。 The radar signals of polyphase codes are similar, which is easy to be confused under low signalto-noise ratio(SNR).