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The paper presents the possibilities of, and methods for, acquiring, analysing and processing optical signals in order to recognise, identify and counteract threats on the contemporary battleground. The main ways electronic warfare is waged in the optical band of the electromagnetic wave spectrum have been formulated, including the acquisition of optical emitter signatures, as well as ultraviolet (UV) and thermal (IR) signatures. The physical parameters and values describing the emission of laser radiation are discussed, including their importance in terms of creating optical signatures. Moreover, it has been shown that in the transformation of optical signals into signatures, only their spectral and temporal parameters can be applied. This was confirmed in experimental part of the paper, which includes our own measurements of spectral and temporal emission characteristics for three types of binocular laser rangefinders. It has been further shown that through simple registration and quick analysis involving comparison of emission time parameters in the case of UV signatures in “solar-blind” band, various events can be identified quickly and faultlessly. The same is true for IR signatures, where the amplitudes of the recorded signal for several wavelengths are compared. This was confirmed experimentally for UV signatures by registering and then analyzing signals from several events during military exercises at a training ground, namely Rocket Propelled Grenade (RPG) launches and explosions after hitting targets, trinitrotoluene (TNT) explosions, firing armour-piercing, fin-stabilised, discarding sabots (APFSDS) or high explosive (HE) projectiles. The final section describes a proposed model database of emitters, created as a result of analysing and transforming the recorded signals into optical signatures. 相似文献
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日本现代国土防空系统由预警与指挥控制系统及防空拦截武器系统两大部分组成,其中的预警与指挥控制系统由各种地面雷达、高速计算机及预警机组成。"巴其"系统的指挥控制则由数据处理设备、通信设备及显示设备等组成。而防空拦截武器系统主要包括歼击机、中远程防空导弹、各种近程防空导弹及防空高炮等。就日本现代国土防空系统的功能与特点、现状及发展趋势作一探讨与分析。 相似文献
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主要介绍了红外告警系统中数据处理器的构成、数据处理(空间匹配滤波、目标分割、鉴别与跟踪)算法以及硬件实现等内容。 相似文献
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战略巡航导弹的对抗方法 总被引:2,自引:0,他引:2
在伊拉克战争中,战略巡航导弹是美国远程空中打击力量的重要组成部分,对一些战略目标、通信目标进行了强有力的摧毁,使对方无还手之力。因此为提高我国防空系统的生存能力和我军的电子进攻能力,研究巡航导弹对抗方法具有十分重要的意义。重点介绍了所采用的一些先进技术,并提出了一些有效的对抗技术方法。 相似文献
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低轨单星对自由段弹道的估计是天基预警系统需解决的关键技术之一.建立了低轨预警卫星对自由段弹道的观测模型,针对极大似然估计批处理算法的大运算量问题,给出了一种多项式逼近算法,由观测数据的逼近多项式在一些特定采样点的值形成伪观测数据,以伪观测数据代替原观测数据进行弹道估计.仿真表明,精度与极大似然估计相当,运算量显著降低. 相似文献
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