摘要混沌信号由于具有非周期性、初值敏感性、类噪声性、可控性、连续宽频谱以及良好的自相关特性、图钉型模糊函数和低截获性能等特点，使其在雷达领域引起了高度重视。目前混沌调频信号和混沌调相信号已被应用于雷达测距、成像和抗干扰，均取得了良好的效果。本文主要研究的就是混沌调相信号在雷达近程探测系统中的应用。28433
　　本文首先研究了混沌信号的产生及其相关特性，对常见的混沌二相码性能进行了分析和比较，研究参数选择对混沌雷达的影响。
　　其次，本文对近程目标探测雷达知识进行了简要的介绍，对混沌二相编码在近程探测系统中的波形设计进行了仿真实验，并对实验结果进行分析，从而研究出提高近程目标探测雷达检测性能的最佳方案，做到对监控目标精确、有效的跟踪。
　　最后，对混沌调相近程探测系统分模块进行了仿真和分析，通过仿真结果证明出混沌信号在雷达中的适用性。
关键词  混沌信号  混沌二相码  近程目标探测  雷达
毕业论文设计说明书外文摘要
Title  The simulation and design of chaos encoding phase modulation near-range detect system
Abstract
Due to the sensitivity to aperiodicity,initial condition,noise-like character, controllability,continuous wideband spectrum, favorable autocorrelation performance,and low probability of intercept (LPI), chaotic signals draw much attention in radar domain. The widely studied chaotic frequency modulated (FM) signals and phase modulated(PM) signals have been applied and perform well in the resolution of distance, radar imaging and capability of ECCM.The following  discussed  in  the dissertation is the application in radar near-range detection system of chaotic phase modulated signals.
Firstly, the production and characteristics  of chaotic signals  are  analyzed,based on this,common  chaotic  binary-phased  code performance are analyzed and compared.then,the paper analyzes the effection to chaos radar under different selection of code.
Secondly, the paper simply introduces the knowledge of near-range target detection radar,proceed the simulation experiment of chaotic binary-phased code ’s waveform under near-range detection system and analyze the result.Then propose the best program to improve the performence of near-range target detection system,so the program can track the monitored target exactly and effectivly.
At last,chaotic phase modulation near-range detection system are simulated and analyzed according to different module.Then prove the applicability of chaotic signals in radar with the result of simulation.
Keywords  chaotic signals    chaotic  binary-phased  code    near-range target detection     radar
目   次
1  绪论    1
1.1  混沌雷达的研究背景    1
1.2  混沌雷达的国内外发展概况    1
2  混沌信号的相关概述    4
2.1  混沌信号的产生    4
2.2  混沌信号的特性    8
3  混沌二相码信号性能分析及参数选择的影响    11
3.1  混沌二相码信号    11
3.2  混沌序列的选取    12
3.3  常见混沌二相码性能比较    12
3.4  小结    20
4  近程目标探测雷达简介    22
4.1  近程目标探测雷达简介    22
4.2  近程目标探测雷达的系统框图    22
4.3  二相编码信号在近程目标探测雷达中的相关处理    23 混沌编码调相近程探测系统仿真与设计:http://www.youerw.com/tongxin/lunwen_23275.html