ID 原文 译文
13144 研究结果初步表明了抛物方程方法预测电离层传播的有效性及其强大的功能. The study preliminarily shows the validity of the powerful numercal techniques of parabolic equaton methods for assessing one- spherc propagation.
13145 电磁旁路攻击是旁路攻击中的ー种有效方法,为了克服传统的电磁旁路攻击必须近距离获取电磁信息的局限性,针对没有电磁防护的密码设备提出一种基于相关性分析的远场攻击方法。 Electromagnets side channel attack is an effective method in side channel attack. In order to overcome the limitations of traditional electromagnets side channel attacks that must be acquired at close distance, a far field attack method based on correlation analysis is proposed for cryptographic devices without electromagnets protection.
13146 使用微控制器运行高级加密标准算法,使用天线在远场探测电磁信号,先对采集的电磁信号均值和滤波以减少噪声的影响,再使用相关性分析方法进行旁路攻击,在天线距离微控制器10 m处成功破解出完整的密钥。 The microcontroller running the advanced encrypton standard(AES) and the antenna detecting the signal in the far field were used in our experi ment. Before perform the side channel attack, we take the average value and filter the collected signal to reduce the influence of noise. Successfully we crack all 16-byte keys at 10 m.
13147 同时也对远场电磁旁路攻击中的频率和样本量做了深入研究,带有密钥信息的电磁旁路主要集中在一段频率范围内,而且随着样本量的增加密钥信息越明显,以此为基础结合密码芯片产生密钥信息泄露的机理,提出了改进的电磁旁路攻击方法。 As the same time, the frequency and sample size of the far feld electromagnetc sFde channel attack are deeply studed. In fact, the electromagnetc sde channel wth key informaton mainly concentrates in a frequency range, and the the key informaton is more obvous with the increase of sample size. Based on this, an improved electromagnetic side channel attack method is proposed combFnng wth the mechansm of key Fnformaton leakage generated by cryptographc chips.
13148 利用GPs电离层层析技术探测电离层已经有了数十年的发展,特别在电离层暴时有着独特的优势。 The use of GPS ionospheric tomography to detect the onosphere has been developed for decades, particularly during the period of ionospheric storms.
13149 文章基于ー种多分辨率层析算法,并结合美国东西部地区部分GPS地面数据对2015年3月16日一 17日出现的电离层暴进行重构。 In this paper, a multi-resolution tomographic algorthm based on GPS data is proposed to reconstruct the onosphere over the eastern and western USA on March 16 17, 2015.
13150 首先,借助独立的测高仪数据验证多分辨率层析技术对电子密度反演的精度结果,同时也证实了电离层暴时多分辨率层析算法的适用性。 First, the accuracy of invers ions us ing the muli i-resoluton tomographc algorithm is analyzed by comparing with independent onosonde data. It is confirmed the feasibility of the muti-resoluton tomographc algorthm during the magnetc storm period.
13151 其次,通过对美国东部地区2015年3月17日磁扰动最强烈时段的电离层重构,检验由磁暴引起的大尺度电离层行扰(large-scale travel i ing ionospheric disturbance, LSTID)的存在,并利用总电子含量(total electron content, TEC)数据分析此次电离层行扰的水平特征。 Secondly, the occurrence of a large scale traveling ionospheric dsturbance (LSTID) caused by the ionospheric storm is verified from the reconstructed Fonospherc Fmages Fn the eastern USA on March 17 , 2015.The horzontal characterstc of ths LSTIDFs also dscussed wth Fnverted TEC estimates.
13152 同时,通过与非相干散射雷达(ncoherent scatter radar , I SR )观测值的对比,借助反演得到的电 子密度剖面信息讨论电离层行扰在垂向上的特征。 Finally , the vertcal feature of the LSTIDFs studied by comparing the i nverted electron density profile and the incoherent scatter radar (ISR) scan.
13153 结果表明:此次LSTID的波长为1200 km左右,周期为 50〜60 min,以350〜400 m/s的波速向西南方向传播,并且电离层行扰(travelling ionospheric disturbance, TID)的垂向电子密度具有较可靠的精度。 The results show that the wavelength of LSTID is about 1 200 km, the period is 50 60 min, and it propagates to the southwest direction at a wave speed of 350 400 m/s, and the accuracy of the vertcal electron density of the TID Fs reliable.