| ID |
原文 |
译文 |
| 13234 |
数据扩展层将ー维电磁信号数据扩展到二维，有效降低了模型的训练难度，深度残差层是基于残差块的深度神经网络，有效解决了深层网络的收敛难、调优难等问题。 |
The data expanson layer extends the electromagnetc sgnal data from one d to two dimensons, effectively reducing the tranng dffculty of the model.The deep res layer is a deep neural network based on resdual blocks, effectively solving the problems of the difficulties of deep network convergence and difficulty in tuning. |
| 13235 |
在明文和密文完全未知的情况下，仅仅通过采集到的电磁泄漏信号，利用该模型对密钥的最后两位进行了恢复实验，实验结果表明准确率达到了 91. 8%。 |
The experimental results show that the final two bits of the key can be obtained only through the collected electromagnetc leakage sgnals, and the accuracy rate is 91. 8%. |
| 13236 |
在同等条件下，该模型的准确度比支持向量机(support vector machine, SYM)模型提升了近8%。 |
Under the same conditions, the accuracy of the mode l is nearly 8% higher than that of the support vector machine (SYM) model. |
| 13237 |
采用数值仿真和理论分析相结合的方法研究了频率对PIN(positivbintrinsic+negative)限幅器微波脉冲热损毁效应的影响。 |
The influence of the frequency on the thermal burnout effect of a positive- intrinsic-negative (PIN) diode limiter is studied with numercal simulaton and theoretcal analysis. |
| 13238 |
研究发现，在相同脉冲宽度情况下，PIN限幅器微波脉冲热损毁功率阈值随频率的升高而降低，由于在一定功率下虽然频率与微波脉冲能量无关，但是在相同脉冲宽度情况下，PIN管阻抗周期性增大的次数随着频率的升高而增多，使得PIN管平均阻抗增大，实际吸收能量增多，该规律对全面评估PIN限幅器的微波脉冲防护能力具有重要的意义。 |
The study shows that the microwave pulse thermal burnout power threshold of a PIN diode limiter decreases with the increase of the frequency under the same microwave pulse width. This is due to the fact that although the frequency is relevant to the mcrowave pulse energy under the same power, the number of the periodic increases of the PIN diode impedance rises with the increase of the frequency under the same pulse width. Thus, the average impedance and the actual absorbed energy of the PIN diode increase, too. This phenomenon is significant for the comprehensve evaluaton of the protective capability of a PIN diode limiter to microwave pulses. |
| 13239 |
分别采用ー种"多层快速多极子+多导体传输线理论”混合方法和实验方法，研究了多点接地技术对降低载荷舱内电缆电磁辐射的作用。 |
Utllizing a hybrid algorithm of “multllevel fast multipole algorithm(MLFMA) plus muti- conductor transmission line theory (MTL)" and its measurement method respective, we study the suppression of the eectromagnetic radiations of the cab es in the payoad modue by using the multi-point grounding. |
| 13240 |
首先，利用多导体传输线(muti-conductor transmission line, MTL)方法快速求解电缆区域泄漏电流。 |
MTL is employed to quickly calculate the leakage currents in the region of the cable, which could be used as the excited currents. |
| 13241 |
其次，将泄漏电流作为激励源，分谐振与非谐振两种状态，利用多层快速多极子方法准确、有效地对不同接地点数情况下载荷舱内电缆的电磁辐射进行仿真。 |
Then MLFMA is used to accurately and efficient simulate the radiations of the cables in the payload module corresponding to di fferent grounding points in resonant and non-resonant respectively. |
| 13242 |
实验结果和仿真结果证明了该混合方法的计算精度和高效性。 |
The measured results and the simulated results verify the accuracy and the high efficiency of the hybrid algorithm. |
| 13243 |
最终得出结论，通过多点接地方式可以明显降低载荷舱内电缆非谐振状态下的电磁辐射，大大改善舱内复杂电磁环境，为航天电磁兼容工程设计提供理论指导。 |
In conclusion, the radiations of the cables in non-resonant in the payload module can be reduced distinctively by using the mutli-point grounding, in order to opitimize the complex electromagnetic environment in the payload module. The research can provde theoretical guidance for the engineerng design on the aerospace electromagnetic compatibility. |