行业专家们在仔细研究三星的供应链,以确定匆忙上市是否导致了技术问题或偷工减料。
Industry experts are scrutinizing Samsung's supply chain to see whether the rush to market caused technical problems or led to corners being cut.
理论分析和计算机仿真都表明,星敏感器的测量精度和焦距,下行信号光的束散角将影响激光链路成功建立概率。
Theory analysis and computer simulation show that the precision and focus of star tracker, the divergence angle of down beam influence the probability of laser link setting up.
在卫星星座内的时间同步中,为满足时间同步信号的传输要求,需要对星间链路进行分析和设计。
It is necessary to analyze and design the intersatellite link (ISL) for satisfying the requirement of time synchronization signal transmitting in satellite constellation time synchronization.
实际星地光通信系统的发射光束为高斯型的情况下,跟瞄误差和大气闪烁是星地激光链路中的主要信道噪声源。
The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link.
对于移动卫星网络,合理的星地链路切换方案需要在保证最小切换时延的同时,能够最优地使用网络资源。
In mobile satellite networks, for the aim of shortening handover delay while using network resource efficiently, a proper handover scheme should be given.
基于孔径接收的对数振幅时间相关函数,结合星地激光下行链路的实际情况,推导了适用于星地下行孔径接收的闪烁频谱表达式。
Based on the temporal covariance of logarithmic amplitude, analytical expression was obtained for aperture receiving power spectrum of atmospheric scintillation of satellite-to-ground downlink.
通过对现有的卫星移动通信系统星间链路的分析发现,不但卫星移动通信系统星间链路的指向具有周期性变化的特性,而且星间链路的相对距离也在周期性变化。
Through the analysis of today's mobile satellite communication systems, it is found that not only the direction, but also the relative distance of the ISL are periodical.
研究了空间信息网络的拓扑结构和路由特点,对网络的星间链路长度和覆盖性能进行了分析。
In this paper, it studied the topology architecture and routing characteristics of the spaceinformation network, then the length of ISL(inter satellite link) and performance of coverage areanalyzed.
本发明提高了大时延高误码率的卫星网络上的链路带宽估计的准确性。
The invention promotes estimation accuracy for link bandwidth of large time delay high error code rate satellite network.
本发明公开了一种星型聚(甲基)丙烯酸长链酯聚合物及其制备方法。
The invention discloses a star poly-(methyl)acrylate long-chain ester polymer and a preparation method thereof.
将聚醚作为一段链段,可以做成如嵌段共聚物、梳状聚合物、星型聚合物等不同的功能性材料。
Using the polyether as the building block, many kinds of functional materials have been prepared, such as block copolymers, comb-polymers and star copolymers.
文中阐述了具有星间链路的卫星网络在空间通信中的重要地位及其路由算法应当具有通用、简洁和可靠等特点。
Satellite network with inter-satellite links has many particular advantages and it receives more and more recognition in both commercial and military fields.
本文提出一种基于星上处理的卫星AT M网络的动态带宽分配方案,它通过对流量的估计动态申请带宽,卫星作为控制中心根据链路利用情况来分配带宽。
In this paper a novel dynamic bandwidth allocation method is proposed for satellite ATM based on onboard processing, which can allocate the bandwidth dynamically by using traffic estimation.
本文提出一种基于星上处理的卫星AT M网络的动态带宽分配方案,它通过对流量的估计动态申请带宽,卫星作为控制中心根据链路利用情况来分配带宽。
In this paper a novel dynamic bandwidth allocation method is proposed for satellite ATM based on onboard processing, which can allocate the bandwidth dynamically by using traffic estimation.
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