This paper comprises two parts : radar clutter simulation and adaptive moving target indication . in the former part , we analyse the generation mechanism of single - channel radar correlated clutter and illuminate the simulated modeling way of rayleigh , log - norm , wei bull , k - distributed clutter with special power spetrum . all these models are used into the practical simulation of ground clutter , cloud - rain clutter and chaff jammer according to their features 在雷达杂波仿真部分分析杂波的产生尤其是单通道相关雷达杂波产生的机理，具体阐明了在指定杂波功率谱情况下，幅度服从瑞利分布、对数正态分布、韦伯分布和k -分布的杂波的建模与仿真方法，并根据不同分布的特点，将其应用到地杂波、气象杂波和箔条干扰的仿真中。
Combining the above signal model and the conventional lcmv method at element level we present a lcmv method at subarray level . in all kinds of jammer scenarios , the method can suppress jammers well , but the disadvantage is that the sll ( sidelobe level ) of adaptive patterns is much higher 将上述提出的信号模型与常规线性约束最小方差( lcmv )方法相结合得到子阵级lcmv方法,在各种干扰情况下该方法都可以实现对干扰的很好抑制,但其局限性是自适应方向图的旁瓣电平较高。
With the development of science and tecbnology , the electronic warfare has gotten to a new stage , electronic jammers , anti - radialized missiles , superlow altitude attacks have turned into great threats confronted with radar nowadays . former single - based radar not only had difficulty in finishing expected tasks , but also the survival of itself had been a pressing problem , people have to probe into multifarious countermeasures in order to improve the viability and effective work - capacity 随着科技的发展，雷达电子战发展到一个新的阶段，电子干扰、反辐射导弹、低空突防和隐身武器已成为当今雷达面临的四大威胁。传统的有源雷达不仅很难完成预定的任务，而且自身的生存也成了紧迫问题，人们不得不积极探讨各种对策，以提高雷达的生存和有效工作能力。
Based on the analysis and study of the primary principle and countermeasure process of the underwater acoustic countermeasure equipments , the mathematical models of the typical underwater acoustic countermeasure equipments such as the wide - band noise jammer target radiation noise simulator echo simulator and the gas bubble are presented 在详细分析、研究水声对抗器材有关基本概念、基本工作原理及对抗过程的基础上，归纳、总结了噪声干扰器、目标辐射噪声模拟器、主动回波模拟器及气幕弹等当前典型水声对抗器材的数学模型。
On the basis of introducing the principle of the tf / ar radar , this paper analyzes the conditions of effectively jamming the tf / ar radar in typical tactical act of hedgehopping , which include the disposition and quantity of electron reconnaissance / jammer , calculates the capability request of equipments in the method of sensor / hand - emplaced jammer , and concludes that it is difficult to jam tf / ar radar at the present time 摘要在介绍地形跟随回避雷达工作原理的基础上，通过设定典型超低空突防飞机的战术行动，分析了对雷达实施有效干扰所必须具备的条件，包括侦察干扰机的部署、数量要求等；并计算了在传感器摆放（投掷）式干扰机模式下对装备的性能要求，得出了在目前技术条件下，对地形跟随回避雷达实施干扰在技术和战术上都是困难的。
