一种小型化高密集电子设备集成结构设计方法

电子设备结构设计是设备研制过程的重要环节,对保证设备性能、可靠性起着至关重要的作用.本文以地面测试设备设计为例,对小型化、高密集集成结构设计方法进行介绍,详细说明了这一设计方法在地面测试设备中的具体应用及验证.工程实践表明:小型化、高密集集成结构设计方法能够高效、可靠地完成结构设计功能要求,具有较大的推广应用价值.     

舰载导弹红外射频导引头电磁兼容设计

采用分层与综合设计法对舰载战术导弹导引头的有源器件选型,印制板、接地、屏蔽、滤波和瞬态骚扰抑制等电磁兼容（EMC）设计进行了研究。分析了各层次传导和辐射的电磁兼容性,给出了设计策略及某导引头壳体电子设计与仿真结果。研究对改善整个导引头的电磁兼容性设计有一定的参考价值。     

某型导弹发射车部分电路的抗干扰分析

对某型导弹发射车上产生的干扰进行了简要分析 ,找出了产生干扰的几种主要原因 ,提出了抑制干扰的几种措施 ,指出了设计是提高抗干扰性能的关键。针对导弹发射车上产生干扰的特殊性 ,结合元器件的特性 ,从硬件与软件设计上提出了一些抗干扰的具体措施和建议。     

最大熵谱估计及其在电子战中的应用

介绍了最大熵谱估计的原理，与快速傅里叶变换相比，它有低的旁瓣和高的分辩力。同时讨论了在电子战方面的应用。     

Numerical simulation of RCS for carrier electronic warfare airplanes

This paper studies the radar cross section(RCS) of carrier electronic warfare airplanes.Under the typical naval operations section, the mathematical model of the radar wave’s pitch angle incidence range analysis is established. Based on the CATIA software, considering dynamic deflections of duck wing leading edge flaps, flaperons, horizontal tail, and rudder, as well as aircraft with air-to-air missile, anti-radiation missile, electronic jamming pod, and other weapons, the 3D models of carrier electronic warfare airplanes Model A and Model B with weapons were established. Based on the physical optics method and the equivalent electromagnetic flow method, by the use of the RCSAnsys software, the characteristics of carrier electronic warfare airplanes’ RCS under steady and dynamic flights were simulated under the UHF, X, and S radar bands. This paper researches the detection probability of aircraft by radars under the condition of electronic warfare, and completes the mathematical statistical analysis of the simulation results. The results show that: The Model A of carrier electronic warfare airplane is better than Model B on stealth performance and on discover probability by radar detection effectively.     

一种S频段具有RCS缩减特性的编码超表面

设计了一种覆盖S频段的电控1-bit编码单元，并对其进行了等效电路分析与参数优化，单元在0/1两种工作状态下相位相差180°；以此为基础完成了9×9超表面阵列设计，通过设置变容二极管两端的偏置电压，使各个超表面单元能够根据设计需求在0/1两种工作状态之间切换，从而实现反射电磁波能量干涉相消。仿真结果表明，编码超表面阵列在2 GHz~4 GHz内相对于同尺寸的金属板能够实现15 dB以上的RCS减缩。     

电子电位差计的干扰来源及抗干扰措施

介绍了电子电位差计干扰的来源、种类及应采取的抗干扰措施。     

电子设备机壳电磁屏蔽技术研究

文章阐述了谱域分析方法计算屏蔽效能的原理，针对电子设备机壳上的周期结构矩形孔阵，应用谱域法对其屏蔽性能进行了分析和计算。在此基础上利用谱域法和FDTD法对矩形孔周期结构导电板进行了比对分析和计算，并用试验方法进行了测试，计算结果与FDTD法计算结果基本一致，也与测试结果比较吻合。     

Absorption and vibrational spectra of methylamine and its ions using quantum chemical methods

We present vibrational spectra of methylamine and its ions using the MP2 method and absorption spectra using time dependent density functional method. On the basis of these calculations electronic transitions of methylamine were successfully determined. We also have derived electron affinity and ionization potential for methylamine. The ionization potential 8.98 eV from this work is in excellent agreement with the experimental value of 9.04 eV. We found that like neutral methylamine, its cation also displays strong σ → σ∗ electronic transitions in the vacuum UV region whereas its anion shows strong electronic transitions in both the vacuum and far UV regions. The detection of methylamine in astronomical objects may benefit greatly from the accurate new data on its far-UV and near-IR lines.     

实施统一编号 加强仪器管理

电子仪器管理的规范化是保证周期检定正常运行、量值传递准确可靠、为产品质量提供计量保证的重要方面。本文介绍了电子仪器从验收合格－建帐－使用一周检过程的管理。此方法实施六年来运行良好。