ID 原文 译文
50047 仿真表明，与多重信号分类(multiple signal classification，MUSIC)方法相比，本文方法能够适应阵元间距的变化，在低信噪比(signal-to-noise ratio，SNR)时估计性能以及角度分辨力均较优， Simulation shows that with the multiple signal classification (multiple signal classification, MUSIC) methods, the method can adapt to the change of the array element spacing, in the low SNR (signal - to - noise the wire, SNR) has a better estimation performance and angular resolution,
50048 通过一步粗估计就可获得较高精度且具有实时性，均方根误差(root mean square error，RMSE)向克拉美-罗界(Cramer-Rao bound，CRB)的逼近程度也说明了新方法的优势，此外还可以采用细估计来提高估计精度。 one step by rough estimate can get higher accuracy and real-time, root mean square error (root mean square error, RMSE) to g in Latin America - ROM community (Cramer - Rao bound, the CRB) approximation degree also illustrates the advantage of the new method, in addition to fine estimation can be used to improve the estimation precision.
50049 为改善分布式压缩视频感知（distributed compressive video sensing，DCVS）系统的视频帧图像重构质量，以实时视频传输为应用场景，提出了一种基于双重稀疏模型的图像解码算法。 To improve distributed compressed video perception (distributed compressive video sensing, DCVS) system of the video frame image reconstruction quality, for real-time video transmission application scenario, this paper proposes a model based on double sparse image decoding algorithm.
50050 解码端由相邻的已重构关键帧产生边信息（side information，SI）; 根据双重稀疏模型思想，分离样本图像小波域下不同尺度的子带，分别使用K均值奇异值分解（K-means singular value decomposition，K-SVD）算法得到具有多尺度特性的冗余字典，结合梯度投影稀疏重建（gradient pursuit for sparse reconstruction，GPSR）算法，完成对非关键帧的重构。 Decoding comprised of adjacent has reconstructed key frames to produce edge information (side information, SI); According to the idea of dual sparse model, separation of samples under different scales of wavelet domain image subband, respectively using k-means singular value decomposition (K - means the singular value decomposition, K - SVD) algorithm with multi-scale features redundant dictionary, combined with the gradient projection sparse reconstruction (gradient pursuit for sparse reconstruction, GPSR) algorithm, and complete the refactoring of non-critical frame.
50051 仿真结果表明，在相同压缩率下，相比传统K-SVD字典训练方法，本文所提出的方法对应的视频帧图像重构峰值信噪比（peak signal to noise ratio，PSNR）可获得0. 5 The simulation results show that under the same compression rate, compared with the traditional K - SVD dictionary training methods, the presented method corresponding to the video frame image reconstruction of peak signal-to-noise ratio (peak signal to noise the wire, PSNR) 0. 5 can be obtained
50052 针对具有非对称通信需求的单中继协同放大转发-正交频分复用(amplify forward orthogonal frequency division multiplexing，AF-OFDM)双向中继系统，提出一种中继能效优化策略。 For the relay coordination amplification with asymmetric communication needs forward - orthogonal frequency division multiplexing (amplify forward orthogonal frequency division multiplexing, AF - OFDM) two-way relay system, put forward a kind of relay optimization strategy of energy efficiency.
50053 在AF-OFDM双向非对称中继通信系统中，子载波有两种工作模式:单向中继传输和双向中继传输。 In AF - OFDM two-way asymmetrical trunking communication system, the subcarrier has two work modes: one-way relay transmission and two-way relay transmission.
50054 以系统能效为优化目标，构建联合中继传输模式选择、功率分配和比特加载组合优化模型; Build system energy efficiency as the optimization target of joint relay transmission mode selection and power allocation and bit load combination optimization model;
50055 采用结构近似优化算法，首先固定子载波分配集合，优化单向中继传输和双向中继传输的功率分配，将原优化问题分解为两个子优化问题求解， The approximate optimization algorithm is adopted, the first set fixed subcarrier allocation, optimizing one-way relay transmission and two-way relay transmission power allocation, the original optimization problem is decomposed into two sub optimization problem solving,
50056 然后优化子载波分配集合，利用子载波配对形成的线性结构搜索双向中继传输的最佳子载波数，避免穷举搜索造成的大运算量。 and then optimize the subcarrier allocation collection, subcarrier pairing of linear structure search the best subcarrier number of two-way relay transmission avoid exhaustive search of large computational complexity.