【作者】 温鑫；

【导师】 李一兵；

【作者基本信息】 哈尔滨工程大学 ， 通信与信息系统， 2007， 硕士

【摘要】 噪声干扰是电子对抗系统中使用非常广泛、对各种雷达的干扰非常有效的一种干扰手段。噪声干扰信号模拟器是电子战综合实验模拟系统的重要组成部分之一，它产生电子战综合实验模拟系统所需的各种干扰信号，检验测试雷达的抗噪声干扰的能力。本文首先介绍了雷达接收机的系统框图。然后介绍噪声、噪声调幅、噪声调频、噪声调相信号的统计特性及通过雷达接收机的系统后的统计特性、干扰功率、功率谱以及工程实现中相关参数的选取。接下介绍针对不同体制雷达一些有效的欺骗手段的原理及实现方法，在实际工程中主要采用的就是噪声加欺骗。最后分别从电路的设计，主要器件的选取，以及在FPGA中的具体设计几方面详细说明如何在工程中实现整个系统，其中主要介绍NiosⅡ嵌入式系统的具体设计方法及在工程中的应用。更多还原

【Abstract】 Noise Jamming is very effective and popular used in the electronic countermeasure (ECM) system. The noise jamming signal simulator is the main part of electronic warfare comprehensive experiment simulation system. The simulator generates the various jamming signals for the electronic warfare comprehensive experiment simulation system, and checks the anti-jamming ability of the tested radar.This essay introduced the system diagram of radar receiver. Then I introduced the statistical characteristics of the noise signal, noise amplitude-modulation signal, noise frequency-modulation signal and noise phase-modulation signal, and their statistical characteristics, jamming frequency, power spectrum after being received by radar receiver, as well as the selection of corresponding parameters in projects. Then, I introduced the principle and realization of several effective deceiving methods to radars of different patterns. The major method is noise jamming with deception jamming in operation. At last, I illustrated how to realize the function of system in the aspects of circuit design, main components selection and specific design in FPGA. The specific design method and the application in project of Nios II embedded system are introduced in details.更多还原