ID 原文 译文
12864 最后使用softmax分类器对训练模 型进行微调,获得面向通信辐射源细微特征识别的深度学习网络。 Finally, the training mode l is fine-tuned by softmax classifier to obtain a deep learning network for the fine feature recognition of communication radiation sources.
12865 通过计算机的仿真得到了超过80%的识别率,进ー步验证了该方法的有效性. The recognition rate of more than 80% is obtained by computer simulation, which further vaiidates the effectiveness of the method.
12866 激光照射旋转毛玻璃产生的贋热光是鬼成像中最常用的光源.文章从理论和实验上研究了贋 热光的相干时间对鬼成像的质量和成像效率的影响。 The pseudic-thermal light produced by using a rotating ground glass illuminated by a laser beam is the most common light source in ghost imagmg. In this paper, the effects o; coherent time o; pseudic-thermal light on the quality and imaging efficiency o; ghost imaging are studied theoretcally and experimentally.
12867 理论上,首先指出贋热光场的相干性是由毛玻璃的转动引起的,并基于旋转毛玻璃的时空随机特性,推导了贋热光鬼成像的二阶关联函数,得到了关联重构图像的解析表示。 Theoretically, first of all, it is pointed out that the coherence of pseudc-thermal light field is caused by the rotation of ground glass, and based on the space-time stochastic propertes of rotatng ground glass, the second-order correlation function of ghost imaging with pseudc-thermal light is derived, and the analyiica! expression;or the reconstructed correlated image is obtained.
12868 结果表明,在满足探测器的曝光时间远小于贋热光相干时间的条件下,鬼图像的表达式中不包含转速,毛玻璃转速对关联重构图像没有影响。 The results show that, under the condtion that the exposure t me of the detector s much less than that of the coherence time of pseudo-thermal light,the rotatng speed of ground glass is not included n the expresson;or the ghost image and has no effect on the reconstructed correlated image.
12869 其次,分析了鬼成像中涉及的几个时间尺度,探讨了提高成像质量和效率的途径。 Secondly, several time scales involved in ghost imaging are analyzed and the way to improve the imaging efficiency is investigated.
12870 经分析,探测器的曝光时间要远小于贋热光源的相干时间,采样间隔要尽可能大于相干时间,这保障了在鬼成像中能探测到有效的光场强度涨落,从而能保证成像质量,又提高成像效率。 Through analysis, it shows that the exposure time should be far less than the coherence time of pseudo-thermal and the sampling interval should be greater than the coherent time as much as possible, which ensuresthat the intensity fluctuation of light field can be detected effectively inghost imaging, thus it ensures the imaging quality and improves the imaging efficiency.
12871 实验上,分别进行了不同毛玻璃转速和不同采样帧率下的鬼成像的对比,结果表明,毛玻璃转速对关联重构图像没有明显的影响,同一相干时间内的多次采样对鬼成像的质量没有明显提升,从而验证了理论的正确性。 Experimentally, ghost imagmg results are compared at different rotating speeds of ground glass and different sampling frame rates respectvely. The results show that the rotating speed of ground glass has no significant effect on reconstructed correlated image, and the quality of ghost imaging is not significantly improved by multple sampiing in the same coherent time, thus the validity of the theory is verified.
12872 该研究为鬼成像质量和成像效率的提高提供了新的思路。 The study provides a new way to improve the quality and efficiency of ghost imaging.
12873 针对传统单频连续波电磁辐射敏感度试验方法无法满足用频装备多辐射源共同作用下复杂电磁环境适应性评估的技术需求,本着有限目标的原则,对用频装备在带内双频窄谱电磁辐射作用下的阻塞干扰效应预测问题进行了研究。 According to facts that the traditional single frequency continuous wave electromagnetic radiation susceptibility test methods cannot satisfy the requrements of the multi-frequency complex electromagnetic environment adaptabiiity evaluaion for the electronic equ i pment, following the principle of i i mit- ed target, the blocking interference effects prediction problems for the electronic equpment under the condition of the dual-frequency narrow spectrum in-band electromagnetic radiation is researched.