ID 原文 译文
57398 利用移动通信系统进行低空小目标检测时，传统被动检测算法无法实现单接收通道下参考信号接收对比，提出一种基于干扰信号重构的直达波抑制算法，用于对低空小目标的检测. In order to solve the problem that the traditional passive detection algorithm cannot achieve the reference signal reception under a single receiving channel when using mobile communication systems to detect low-altitude small targets，a direct wave suppression algorithm based on interference signal recon- struction was proposed for the detection of low-altitude small targets.
57399 首先通过移动通信系统感知信道传输环境; Firstly，the mobile communication system is used to perceive the channel transmission environment.
57400 在此基础上，利用 OFDM 时频特性重新构建直达波信号及多径信号等干扰信号，最后通过扩展相消算法对单接收通道中的直达波干扰进行抑制. On this basis，the interference signals such as direct wave signal and multipath signal are reconstructed by using the time-frequency characteris- tics of orthogonal frequency division multiplexing. Finally，the direct wave interference in the single re- ceiving channel is suppressed by the extended cancellation algorithm.
57401 仿真结果表明，所提方法能在移动通信系统单接收通道情况下提高回波检测性能，提高低空小目标检测的准确性. The simulation results show that the proposed method can improve the echo detection performance and improve the accuracy of low-altitude small target detection in the case of single receiving channel of mobile communication system.
57402 对于多小区多簇且每个簇包含任意用户的下行非正交多址接入( NOMA) 系统，提出了一种最大公平的功率分配方案. A power allocation scheme to maximize fairness is proposed for multi-cell downlink non-orthog- onal multiple access ( NOMA) systems with multi-cluster multi-user.
57403 首先构建了最大公平的功率分配优化问题; Firstly，the power allocation optimi- zation problem for maximizing fairness is constructed.
57404 推导了单簇内以最大公平为准则的分配功率时，该簇内每个用户的速率与每个簇的总功率之间的关系，并基于该结论，将优化问题中用户间的功率分配转化为簇间功率分配; Then，the relationship between the total power of a signal cluster and the users’rate in the cluster is derived under the criterion of maximum fairness，and based on this conclusion，the power allocation among users in the optimization problem is transformed into that among clusters.
57405 最后给出了一种基于迭代的簇间功率分配算法，为每个簇平均分配功率并计算单簇内最大公平准则下用户的速率. Finally，an inter cluster power allocation algorithm based on iterative is presented.
57406 通过多次调整最大速率所在小区簇的功率和最小速率所在小区簇的功率，得到该系统中最大公平的功率分配. This algorithm calculates the user＇s rate under the maximum fairness criterion by assigning average power for each cluster，and obtains the optimal powers by adjusting the cluster power of the cell with the maxi- mum rate and the cluster power of the cell with the minimum rate.
57407 仿真结果显示，所提方案的公平性优于相同场景中已有的功率分配方案. Simulations show that the proposed scheme outperform the existing schemes in terms of fairness.