ID 原文 译文
38656 针对空地协同场景设计并开展了仿真实验。 The field synergy scene was designed and carried out simulation experiments.
38657 结果表明,空地多智能体协同算法可以将位置误差降低40%;而在使用锚定同质点以后,误识别率由49%降低至4%。 The results show that the space more intelligent TiXie algorithm with position error can be reduced by 40%;But after using anchor with particle, false recognition rate reduced to 49% from 4%.
38658 实验验证该算法具有良好的定位精度、实用性和有效性。 Experiments verify that the algorithm has good localization accuracy, practicability and effectiveness.
38659 由于星地混合协作网络(hybrid satellite-terrestrial cooperative network,HSTCN)能显著提升卫星通信的服务质量,近年来受到了国内外学者的广泛关注,分析了基于中继选择的星地协作传输系统的性能。 Due to star to mixed collaborative network (hybrid satellite - terrestrial cooperative network, HSTCN) can significantly improve the quality of service of satellite communications, received wide attention of scholars both at home and abroad in recent years, analyzed the star to cooperative transmission system based on relay selection performance.
38660 首先,在卫星和地面用户之间存在直达链路,并且所有中继节点在采用门限判断译码转发协议辅助卫星通信的情况下,得到用户端经过最大比合并后的输出信噪比(signal-to-noise ratio,SNR)表达式。 First of all, the satellite and the ground that there was a direct link between the user and all in the threshold judgment decoding forwarding protocols used auxiliary relay nodes under the condition of satellite communication, get client after the biggest than the combined output SNR (signal - to - noise thewire, SNR) expression.
38661 其次,针对卫星信道服从阴影莱斯分布,而地面信道服从Nakagami-m分布,推导出随机选择和最佳选择两种中继选择策略下系统的中断概率闭合表达式。 Secondly, in view of the shadow rice distributed satellite channel, and channel Nakagami - m distributed on the ground, random selection is deduced and the best choice for the interrupt probability of system under two kinds of relay selection strategy closed expression.
38662 接着,进一步得到高信噪比条件下中断概率的近似表达式,为分析各种参数对系统性能的影响提供了更加便捷的方法。 Then, further under the condition of high SNR interrupt the approximate expression of probability, to analyze the influence of various parameters on the performance of the system provides a more convenient method.
38663 最后,计算机仿真不仅验证了理论推导的正确性,而且定量分析了协作传输带来的好处,从而为HSTCN技术的实际应用提供理论依据。 Finally, computer simulation not only verify the validity of the theoretical derivation, and the quantitative analysis of the benefits of cooperative transmission, so as to provide theoretical basis for practical application of HSTCN technology.
38664 针对外辐射源雷达中,传统基于压缩感知(compressed sensing,CS)的超分辨波达方向(direction of arriving,DOA)估计方法在阵列天线存在幅相误差时测角精度差和目标分辨性能低的问题,提出一种基于总体最小二乘(total least squares,TLS)-CS的超分辨DOA估计方法。 In view of the outside source of radar, based on the traditional compression perception (compressed sensing, CS) super resolution of DOA (direction of arriving, DOA) estimation method in antenna array amplitude-phase error Angle measuring accuracy and target the problem of lower resolution performance, put forward a kind of based on total least squares (total further squares, TLS) - CS super resolution DOA estimation method.
38665 首先,通过奇异值分解方法求解TLS信号模型来修正阵列天线的幅相误差;然后利用贪婪迭代追踪算法进行CS稀疏重构得到目标的方位信息。 First of all, through the singular value decomposition method for solving the TLS signal model to adjust the amplitude and phase errors of the antenna array;Greed iterative tracking algorithm is then used for CS sparse reconstruction target azimuth information.