ID	原文	译文
57628	引入单窃听节点对第 2 跳传输进行窃听，并结合主动和被动窃听方式提出了最优中继选择和次优中继选择方式，推导了 2 种中继选择方式下次网络安全中断概率闭合式.	Then，a single eavesdropping node is introduced to eavesdrop the second hop transmission，and the optimal relay selection and the sub optimal relay selection are proposed in combination with the active and passive eavesdropping modes respectively，and the closed-form secrecy outage probability expressions of secondary network under two relay selection modes is deduced.
57629	数值计算和仿真结果表明，主接收节点和中继数目、中继和窃听节点位置设置、能量采集比例、能量转换效率以及信道容量和安全容量阈值都会对次网络安全中断性能产生显著影响.	It is shown in simulations that the secrecy outage performance of secondary network is significantly affected by the number of primary receiver nodes and relays，the location of relays and the eavesdropping node，the ratio of energy harvesting，the efficien- cy of energy conversion，and the thresholds of channel capacity and secrecy capacity.
57630	最优中继选择方式下的次网络安全中断性能明显优于次优中继选择方式.	The secrecy outage performance of the secondary network under the optimal relay selection scheme is obviously better than that of the suboptimal relay selection scheme.
57631	功率信标信号功率或干扰约束的增大使得次网络安全中断概率降低，并趋于饱和.	The secrecy outage probability of secondary network is re- duced and tends to be saturated by increasing interference constraint or power beacon signals’power.
57632	针对时间反演多址系统中信道的相关性会导致多用户干扰的问题，为了消除用户间干扰，降低计算复杂度，提出基于最小均方误差的 3 条对角线矩阵分解的低复杂度近似算法.	Aiming at solving the problem of multi-user interference caused by channel correlation in time reversal division multiple access system，eliminating inter-use interference and reducing computational complexity，a low complexity approximation algorithm of matrix decomposition of tridiagonal matrices based on minimum mean square error is proposed.
57633	首先提取检测矩阵( Gram-N) 中包含主对角线的 3 条对角线矩阵;然后将 3 对角线矩阵分成 2 个 2 对角线矩阵;	Firstly，the tridiagonal matrix that include the main di- agonal line in the detection matrix( Gram-N) is extracted，and the tridiagonal matrix into two double diag- onal lines matrices is divided.
57634	再利用 2 对角线矩阵求逆规律，分别求出这 2 个 2 对角线矩阵的逆，由此得出 3 对角线矩阵的逆;	Then，by using the inverse rule of double diagonal lines matrix，the inverse of these two double diagonal lines matrices is obtained，the inverse of the tridiagonal lines matrix is ap- plied in the algorithm.
57635	最后，根据诺依曼级数近似，用3 对角线矩阵这个稀疏矩阵的逆来逼近 Gram-N 的逆.	Finally，according to the Neumann series approximation，the goal of approximating Gram-N’s inverse is realized by using the inverse of tridiagonal matrix. Simulations show that the pro- posed algorithm has obvious performance advantages in terms of bit error rate，spectral efficiency，and complexity.
57636	仿真结果表明，该算法在误码率和频谱效率方面具有明显的性能优势，并且具有较低的复杂度，在复杂度较低时可获得近乎最优的性能增益.	The algorithm can obtain a near-optimal performance gain when the complexity is low.
57637	针对目前卫星移动通信系统中卫星组网能力欠缺等问题，在非地面网络基础上提出了一种基于虚拟卫星小区组网的多普勒频移估计和补偿算法.	Aiming at problems such as lack of satellite networking capabilities in current satellite mobile communication systems，a Doppler frequency shift estimation and compensation algorithm based on virtual satellite cell networking is proposed on the basis of non-terrestrial networks.