脉冲压缩旁瓣抑制技术研究+文献综述

摘要脉冲压缩是现代雷达广泛应用的一种先进技术，它有效地解决了雷达距离分辨力与平均功率之间的矛盾，并广泛应用于现代雷达中,脉冲压缩带来的旁瓣抑制问题也成为一种广泛研究的问题。
本文首先从脉冲压缩技术出发，分析了脉冲压缩技术的原理与特点；针对线性调频信号和二相编码信号，分析了它们的频谱特性、模糊函数和脉冲压缩原理。接下来介绍了线性调频信号的幅度加权旁瓣抑制原理，并针对海明加权进行了仿真分析。最后对二相编码信号的脉压旁瓣抑制方法进行了研究，以巴克码为例，论文介绍了基于线性规划法与最小二乘法的旁瓣抑制滤波器和失配滤波器设计方法，给出了仿真结果，并对恒增益处理损失下旁瓣抑制滤波器设计进行了研究；以最小旁瓣电平码为列，讨论了基于线性规划法与最小二乘法的失配滤波器设计，给出了仿真结果和性能分析。
关键词脉冲压缩旁瓣抑制雷达数字信号处理线性调频二相编码7135
毕业论文外文摘要
Title   Research on Pulse Compression Sidelobe Suppression   Technology
Abstract
Pulse compression is a widespread advanced modern radar application technology, a technology that bridges the radar range resolution and the average power contradiction, and is widely used in modern radar. In addition to pulse compression, sidelobe compression is another important aspect of this technology.
First, from pulse compression technology, the pulse compression technology principle and characteristics are analyzed; for linear frequency modulation signal and binary phase-coded signals, the spectral characteristics, ambiguity function and pulse compression are analized. Next, the principle of amplitude weighting for linear frequency modulation signal sidelobe suppression is introduced, thus the Hamming weight methode is simulated and analized. Lastly, binary code sidelobe suppression methods are studied. For barker code, sidelobe suppression filter and mismatched filter bansed on linear programming and least squares are introduced, simulation results are presented. Meanwhile, sidelobe suppression filter design under constant gain loss is studied. For minimum sidelobe level codes, the mismatched filter design based on linear programming and least squares is studied, simulation results and analysis are presented.
Keywords pulse compression sidelobe suppression radar digital signal process linear frequency modulation binary phase coded
目   次
1绪论   1
1.1课题的研究背景   1
1.2课题的研究状况   2
1.3论文的内容安排   3
2 脉冲压缩技术   4
2.1 脉冲压缩概述   4
2.2 线性调频信号   8
2.3 二相编码信号   12
3 线性调频压缩信号的旁瓣抑制   18
3.1 线性调频信号频域幅度加权处理   19
3.2 海明加权   20
4 二相编码信号旁瓣抑制   25
4.1 巴克码的旁瓣抑制   25
4.2 最小旁瓣电平码的旁瓣抑制   41
结论   46
致谢   47
参考文献   48
1绪论
1.1课题的研究背景
雷达[1]是集中了现代电子科学技术各种成就的高科技系统。众所周知，雷达已成功地应用于地面（含车载），航载，机载方面。近年来，雷达应用已经向外层空间发展，出现了空间基（卫星载，航天飞机载，宇宙飞船载）雷达。目前正在酝酿建立比地面预警雷达，机载预警雷达和超视预警雷达更优越的星载预警监视雷达。鉴于雷达在军事中所起的重要作用，各国纷纷投入大量的人力物力，借助现代电子科技的不断进步来发展自己的雷达技术，使雷达技术和理论得到了迅猛的发展，同时也促进了其民用领域的应用。脉冲压缩旁瓣抑制技术研究+文献综述:http://www.youerw.com/tongxin/lunwen_4931.html