应用于引信遥控装定的火控信息交联装置

自差式多普勒无线电引信发射和接收装置是引信遥控装定的重要内容.在装置中引入单片机和FPGA技术,能快速、准确的装定已经出炮口300 ms以上的密集弹药,选择工作方式,可供选择的工作方式有近炸、碰炸、遥控炸、定时(距)炸.引信具备近目标发射电磁波功能,能有效抗有源干扰、海杂波干扰和信道干扰.FPGA的高度集成特性减小了编码和解码、调制与解调电路的体积,减小了引信工作电路.     

GJB/Z 135-2002《引信工程设计手册》主要技术内容分析(六)

第12章其他装置设计本章的主要技术内容包括装定装置、自毁装置、延期装置、防雨装置的具体设计。1.装定装置(1)功能。包括选择和调整时间引信(机械或电子)的作用方式,作用时间和技术参数等。(2)分类。包括机械装置和电子装定装置。(3)应用特点。包括机械装定装置、电子装定装置、遥控装定装置和炮口感应装置的具体应用。(4)基本要求。包括装定精度高、装定速度快、装定可靠性高、维护性好、操作简单等。(5)装定扳手。包括装定扳手的应用特点及外形图。(6)机械时间引信装定机构。包括设计指南、结构设计等。给出了装定帽式装定机构、装定扳…     

多选择引信炮口装定中的数据传输

多选择引信能有效地提高舰炮武器系统的作战效力,而装定技术是其中的关键技术．文中论述了多选择引信装定中的数据编码形式、数据传输方法以及传输中的差错控制等问题,并给出了实现饱口装定的数据传输的具体方案．     

磁耦合共振引信装定信息的双向传输技术

针对目前电磁感应装定方式有效传输距离近、传输效率低等问题,基于电磁耦合谐振理论,提出了一种三线圈磁耦合共振装定信息传输系统,实现装定器和引信之间信息的快速、高效传输。利用互感耦合模型,分析得出了整个系统的接收电压比率与线圈谐振频率、耦合系数之间的关系,并根据该特点分析了基于频率调制的信息传输技术。实验结果表明,磁耦合共振装定系统可实现稳定、可靠的信息传递,性能可以满足大多数引信的设计要求,这种新颖的装定系统信息传输的实现,可为新一代武器系统的信息交联设计提供一定的理论支持。     

地磁计转数定时修正引信的定距精度研究

提出了一种基于弹载地磁传感器计转数引信自主初速测量、根据实时测量速度修正弹丸作用时间的定距弹系统工作方法,并对影响该系统定距精度的各误差源进行了定量分析,计算得某30弹丸1000 m定距精度为4.32 m.结合试验,证明基于地磁计转数测速定时修正技术可以实现较高的引信定距精度、有效提高弹药对目标的精确打击能力.     

遥控引信技术反导应用

随着中口径舰炮发射率和系统射击精度的提高,以及弹药技术的发展,尤其是高技术引信的应用为提高中口径舰炮武器系统的反导效能提供了一条有效技术途径。针对水面舰艇防御反舰导弹的作战需求,基于中口径舰炮武器系统现有技术状态,提出了应用遥控引信技术提高系统反导效能的技术方案。通过仿真计算和对比分析,阐述了该方案的可行性和有效性,并进一步探讨了系统的相关技术指标和技术实现途径。     

电子时间引信时间精度分析及试验研究

介绍了影响电子时间引信定时精度的诸因素,包括时基振荡源精度、电源启动时间、复位延时、环境温度、电路参数的变化及装定器精度等。结合某型电子时间引信的生产定型试验,对该引信进行了定时精度的试验,并按照国军标的要求将试验数据分析处理,试验结果达到了预期目的。     

GJB/z135-2002《引信工程设计手册》主要技术内容分析(五)

第10章引信爆炸序列设计本章的主要技术内容包括引信爆炸序列的功能、分类、应用特点、基本要求、常用的爆炸元件和引信爆炸序列设计等。(1)功能。包括引信爆炸序列的组成和用途。(2)分类。包括传爆序列、传火序列、隔爆爆炸序列、无隔爆爆炸序列和爆炸逻辑网络等类型及其示意图。(3)应用特点。包括各种引信常用的传爆序列以及爆炸逻辑网络的具体应用。给出瞬发引信和水压引信、火药延期引信、多装定引信、带自毁的小口径榴弹触发引信、带自毁的航空火箭弹引信、钟表引信、火药时间引信、导火索时间引信、以及无线电引信、压电引信、光引信…     

国外反水雷舰艇撷英

反水雷舰艇是反水雷作战的主要武器装备,它有扫雷舰艇和猎雷舰艇之分。扫雷舰艇一般装载或拖带有电磁、声频和接触扫雷具等,以扫爆相应引信的水雷。除此还拖带了截割扫雷具以割断锚雷雷索,使水雷浮起再用火炮将其击毁。猎雷舰艇则是先用探测距离远、分辨能力强的猎雷声纳发现并识别水雷,然后派蛙人或遥控深潜灭雷具投放炸药包炸毁水雷。猎雷与扫雷的最大区别是,猎雷与被扫水雷装什么引信无关,且不受水雷引信定次、定时的影响。但猎雷的速度因要逐个销毁水雷而比扫雷速度慢。因此一些国家还研制了兼顾猎、扫雷任务的反水雷舰艇,以达到较为理想的反水雷效果。     

我国引信技术发展刍议

从产品样本文献、会议文献以及科技报告和专利文献中,可窥见国外引信的一些技术创新点和发展趋势:(1)引信信息化与机电一体化;(2)引信灵巧化与多用途化;(3)引弹(战)一体化(包括远程压制弹药的弹道修正引信和制导弹药引信对制导信息的利用等);(4)装定实时化、数字化与高精度化;(5)改善安全性,体现人道主义设计。包括解决冗余保险和延长延期解除保险距离等;强调自毁、绝火、自失效与爆炸物处理特性,特别是针对大批量装备使用的子弹药;(6)电子保险与解除保险装置及微机电技术在引信保险与解除保险装置中的应用;(7)结构简化与低成本化。一、我国…     

Reviews

Douglas S. Derrer, We Are All the Target: A Handbook of Terrorism Avoidance and Hostage Survival. Annapolis, MD: US Naval Institute Press, 1992. Pp. x+135, notes, index. $14.95. ISBN 01–55750–150–5

Ian Knight, Zulu: Isandlwana and Rorke's Drift, 22–23 January 1879. London: Windrow & Greene, 1992. Pp.136, 150 illus., incl 8 colour plates, maps, biblio. £35. ISBN 1–872004–23–7

Ian Knight, By the Orders of the Great White Queen: Campaigning in Zululand through the Eyes of the British Soldiers, 1879. London: Greenhill Books and Novato: Presidio Press, 1992. Pp. 272, 17 illus., 1 map. £18.95. ISBN 1–85367–122–3

Manfried Rauchensteiner and Erwin A. Schmidl (eds.), Formen des Krieges: vom Mittelalter zum ‘Low‐intensity’ Conflict’. Graz : Verlag Styria, 1991. Pp.208. DM35. ISBN 3–22–12139–7

Harold J. Kearsley, Maritime Power and the Twenty‐First Century. Dartmouth: Dartmouth Publishing Company, Limited, 1992. Pp.xv + 203, 13 diagrams, index. £32.50. ISBN 1–85521–288–9     

Panjwai: a tale of two COINs in Afghanistan

The US Army has two approaches to counterinsurgency operations in Afghanistan. One is hard, or combat-focused, and the other is soft, or development-focused. This study examines two US Army task forces deployed to Panjwai District, Afghanistan from 2012 to 2013. CTF 4-9 and 1-38 offer a meaningful comparison because they pursued these contrasting approaches among the same population and against the same enemy at the same time and place. The study compares each unit’s approach and finds that neither approach was successful absent the other. The article concludes by recommending further research into combining the approaches at the operational level.     

线性核时频信号表示及其仿真

根据ｃｈｉｒｐ信号在模糊域的特点,本文提出了线性核时频表示方法。这种方法在提高分辨率、消除交叉项以及抑制噪声等方面都具有较高的性能。理论分析和实验结果都证实了这种方法的有效性     

Forecasting a Hurricane: Israeli and American Estimations of the Khomeini Revolution

The surprising ‘Arab Spring’ raises the question as to what would enable national intelligence to provide high quality warnings prior to the eruption of popular revolutions. This article uses new sources of evidence to trace and explain Israel's success in comparison to US failure at correctly estimating the course of the Iranian Revolution in 1977–79. In explaining this variance, the article shows that it was mainly the result of the intimate acquaintance of Israel's representatives in Iran with the local language, history and culture, as well as the ability to communicate with locals – tools which the Americans completely lacked.     

关于教师继续教育培训模式的思考

继续教育作为终身教育的重要组成部分和基本形式,对教师的发展成长意义重大。继续教育工作开展十多年来,取得了一定的成绩,但还存在不少问题,如学习动机较为被动,管理认识不到位,教学内容陈旧空泛,教学方法呆板机械等。随着课程改革的不断深入,继续教育必须采取相应的改进措施,树立以人为本,服务至上的观点,教学内容的前瞻性与实用性并重,教学人员进行整合,教学方法灵活多样,评价考核规范科学等,以此激活受训教师内在的学习动机,更大程度地提高继续教育培训的实际效果。     

用DirectShow实现网络视频

目前市场上的网络监控技术一般用昂贵的硬件设备来支撑,投资较大。在深入研究微软的DirectX9.0的基础上,提出如何用DirectShow软件技术和普通的数字摄像头来实现网络视频的监控和实现技术,内容涉及通信协议、视频的编码与解码技术、视频的编码格式和COM组件编程技术等,最终的实验结果令人满意,且费用低廉,技术可靠,为在高速局域网内构建视频监控系统提供有效的技术支持。     

Interpreting the Ribchester Helmet

In 1796 a 13-year-old boy playing on wasteland behind his father’s house in Ribchester, Lancashire discovered an assemblage of over 30 Roman artefacts, including a decorated brass helmet. Although partially corroded the Ribchester helmet is a fine example of a first-century AD cavalry sports helmet. This article considers how the interpretation of the helmet has evolved since its discovery. The multi-faceted iconography of the helmet with its mural crown diadem is that of an elite soldier and is paralleled in other examples of cavalry sports helmets of the Ribchester type. The long-neglected imagery on the helmet bowl is reinterpreted and seen not as a haphazard collection of randomly placed combatants but as a highly structured, symmetrical composition specifically designed to be viewed from different directions.     

Putin – the masked nemesis of the strategy of ambiguity

Recent events demonstrate the complex and adaptive approach employed by Russia to reassert influence in Europe. The changing face of Russia’s strategy commenced in 2007 when it launched a crippling cyber-attack against Estonia. This was followed by a large Russian conventional attack against Georgia in 2008, occupying two large areas of the nation. 2014 witnessed the Russian annexation of Crimea where in just a week, Russia seized control of Crimea “without firing a shot.” The annexation of Crimea was rapidly followed by a Russian inspired and led subversive war in eastern Ukraine. The common thread among these diverse Russian operations is its use of ambiguity to confound and confuse decision makers in the West.     

Desert insurgency: lessons from the third Tuareg rebellion

This article provides an in-depth examination and analysis of the 2006–2009 Tuareg rebellion in Mali and Niger. It identifies the underlying reasons behind the rebellion, explores contrasting counter-insurgency (COIN) strategies employed by the two governments, and presents some lessons learned. While both COIN approaches ultimately produced similar peace settlements, the article argues that the Malian strategy of reconciliation combined with the selective use of force was far more effective than the Nigerien iron fist approach at limiting the size and scope of the insurgency and producing a more sustainable peace. It concludes by looking at the role of external actors, particularly the United States, and how the failure to internationalize the conflict was actually more beneficial to the local COIN effort, as well as to the longer strategic interests of the United States in the region.