【作者】 王刚；

【导师】 明德烈； 龚俊斌；

【作者基本信息】 华中科技大学 ， 模式识别与智能系统， 2011， 硕士

【摘要】 近年来,随着国际形势的风云变幻,各种恐怖主义、宗教极端主义和民族分裂主义三种势力日趋活跃,暴力活动层出不穷。面对日益严重的安全威胁,各国政府相继投入了大量的人力、物力、财力于反恐斗争中。基于有效打击敌人、切实保护自我的指导原则,一种俗称“拐弯枪”学名是“间接瞄准射击武器系统”的新型枪械在这样的大背景下应运而生,并已在多个国家得到大力研究与发展。借助该种武器系统加装的辅助非常规瞄具,战斗人员可在完全隐蔽的情况下,对肉眼无法直视的目标进行间接瞄准射击,这有效提高了射击者把握战机的能力,也很好的达到了保护自己、杀伤敌人的目的。间接瞄准射击图像稳定系统作为该特种武器装备的重要组成部分,直接决定了其在实战中的可操作性与稳定、实用性。为此本文对该稳像系统进行了充分的研究,并根据各项技战术指标提出了相应的设计方案。应用该方案,本文在某数字图像处理开发板上完成了系统各个子模块的设计与实现,其中为保证系统的设计灵活、可扩充裁剪、升级方便的特性,本文采用了可编程片上系统(SOPC)技术,即由单芯片完成整个系统的主要逻辑功能。系统的主要控制芯片为Altera公司生产的EP2C35F484C8型低成本、高性能FPGA,负责完成整个系统的初始化设置工作,控制数据流在子模块之间的传输并有序协调各个外挂IP核的任务流程,同时为保证系统的实时性要求,本文对耗时的子模块以硬件电路的形式实现,并在对算法优化的过程中,使用了定制指令、C2H等硬件加速技术。对于系统中的辅助控制子模块,本文主要是使用NIOS II软核处理器以软件的形式完成模块功能,将来在控制任务繁重、数据流要求更高速传输的情况下,可使用移植uCOSII、uCLinux等成熟稳定、高效率、低成本的嵌入式操作系统或者是利用双NIOS II软核实现并行处理等方式来进一步升级完善系统。经板级测试,该间接瞄准射击武器稳像系统能够有效完成各个规划子模块的功能,整体设计满足枪械在实战中的严格性能要求。具有集成度高与使用灵活的特点,外加成本低廉,升级方便,因此有较高的工程实用价值。更多还原

【Abstract】 In recent years, with the changeable international situation, all kinds of terrorism, religious extremism and national separatism etc.have become increasingly active and made endless violence emerge. Facing the increasingly serious security threats, goverments have spent a great deal of human, material and financial resources in the war against terror. Based on the principle of protect themselves against the enemy effectively, a new firearms common says“bend gun”, whose scientific name is“indirect aimed shot weapon systems”came into being in such big context, and has got a rapid research and devepment in several countries.By this weapon system of auxiliary unconventional aiming devices, the shooter which is not exposed situations or the naked eye can not look straight into the target could shot with indirect aimed so as to maximize shelter selves and kill enemies.Indirect aimed shot weapon system as an important part of the special equipment directly decided the maneuverability and practicability in actual combat. This paper studies the system sufficiently and proposed the corresponding realization scheme of modules according to various tactics index.With the application of the scheme, the paper completed all system design and implementation of the sub module in a digital image processing development board. This paper adopts the system on programmable chip technique, by which single chip complete the whole system’s logical functions with the characteristics of flexible, extendable cutting and upgrade conveniently. The main control chip of the system whose type is EP2C35F484C8 with low cost and high performance is mianly responsible for the system initialization, the transmission of data flow between modules and coordinate plugin IP core orderly, to ensure the real-time of the system, this paper adopts custom IP core in the time-consuming sub module with hardware circuit, and uses the hardware acceleration technology such as custom instructions, C2H etc. in the optimizing of the algorithm.For the auxiliary sub module of the control system,this paper complete the functions mainly by NIOS II softcore processor in software.when the task is arduous and data flow requires more high-speed transmission,we can transplant the uCOSII or uClinux etc which is mature,stability,high efficiency and low cost of embedded operating system or use double softcore processors to realize the parallel-treatment way so as to improve the system further.After the board level test, this system can complete the several sub modules effectively. On the whole, this design can satisfy the demand of the strict performance requirements in actual combat.With the high level of integration, flexible characteristics, high cost performance and upgrade conveniently, therefore it has a high engineering practical value.更多还原