MATLAB脉间二相编码脉冲串信号分析仿真
关键词 脉间二相编码脉冲串信号 模糊函数 伪随机序列 随机序列
毕业设计说明书（论文）外文摘要
Title Inter-pulse Bi-phase-coded Pulse Train Signal Analysis
Abstract
Inter-pulse bi-phase-coded pulse train is an important form of radar signal. The shape of its ambiguity function is thumbtack-typed. It has good properties of distance measurement and velocity measurement. In this paper, the inter-pulse bi-phase-coded pulse train based on pseudo-random and random signals are introduced. The coding type includes barker codes, M codes, chaotic codes and random codes. The characteristics of expressions, the characteristics of ambiguity functions, the cut of ambiguity function, the doppler sensitivity and the method of matching processing are studied. MATLAB is used to simulate the ambiguity function. Based on the and cut of their ambiguity functions, different doppler values of their ambiguity functions and the comparison with the pulse train signal at the same parameters, the signal properties are studied.
Keywords Inter-pulse bi-phase-coded pulse train signal Ambiguity function Pseudo-random sequence Random sequence
目 录
1 绪论 1
1．1 研究的背景与意义 1
1．2 国内外研究现状 1
1．3 本论文主要工作及内容安排 2
2 脉间二相编码脉冲串信号基本特性 3
2．1 信号时域特性 3
2．2 信号频域特性 4
2．3 均匀脉冲串信号分析 5
3 伪随机脉间二相编码脉冲串信号性能分析 8
3．1 基于巴克序列的脉间二相编码脉冲串信号 9
3.1.1 编码基本特性 9
3.1.2 模糊函数推导与绘制 9
3.1.3 模糊函数切割 11
3.1.4 性能分析与对比 13
3.1.5 多普勒敏感性分析 14
3．2 基于M序列的脉间二相编码脉冲串信号 15
3.2.1 编码基本特性 15
3.2.2 模糊函数推导与绘制 16
3.2.3 模糊函数切割 17
3.2.4 性能分析与对比 19
3.2.5 多普勒敏感性分析 20
3．3 基于混沌序列的脉间二相编码脉冲串信号 21
3.3.1 编码基本特性 21
3.3.2 模糊函数推导与绘制 22
3.3.3 模糊函数切割 24
3.3.4 性能分析与对比 25
3.3.5 多普勒敏感性分析 25