MATLAB消息驱动的跳频抗干扰技术研究

菜单

摘要无线通讯中，各类噪声和干扰信号都会影响通信质量，来自外部的故意干扰和系统内部自身的干扰都应该作为系统设计的考虑因素，而目前绝大部分通信系统都缺乏相应的设计。传统抗干扰手段的缺陷和不足已经不容忽视，也使电子通讯和信息网络发展受到严重限制，更先进的抗干扰技术应运而生。消息驱动的跳频抗干扰技术就是在经典跳频系统的基础上改进而来。本文从经典跳频系统入手，从系统构成、数学模型、仿真建模等方面阐述其原理，并对其系统实现进行仿真和误码率分析。在此基础上进一步介绍消息驱动跳频的组成原理、理论性能，并对一些核心问题作重点研究。根据发射端和接收端的设计原理进行MATLAB仿真，从而对基于消息驱动的跳频抗干扰技术有更深的理解。43214

关键词: 跳频; 消息驱动; 抗干扰; 仿真

毕业论文设计说明书外文摘要

Title Research on Anti-Jamming Technology Based on Message-Driven Frequency Hopping

Abstract

The wireless communication is susceptible to all kinds of noise and interference signals. The vast majority of existing communication systems did not take the impact of external interference and intentional interference from internal systems into account. The traditional means of anti-jamming has clearly revealed its flaws and shortcomings, and has become one of constraints of the development of communication system and information network. As the result, more advanced anti-jamming technology emerged. Message-driven frequency hopping technology is based on the classical frequency hopping system. In this paper, we chose the composition of the conventional frequency hopping system from the start, and then introduced its mathematical model and simulation model to expound the principles of the conventional frequency hopping system. And then we simulated to implement the system and calculated BER when White Noise was added. We further introduced the composition and theoretical performance of message-driven frequency hopping and focused on some key problems. We did system simulation based on the principle of transmitter design and receiver design. Thus we can have a deeper understanding of the anti-jamming technology based on message-driven frequency hopping.

Keywords: frequency hopping; message-driven; anti-jamming; simulation

1 绪论 1

1.1 研究背景 1

1.2 研究现状 2

1.3 论文结构 3

2 经典跳频通信系统 4

2.1 系统组成 4

2.2 数学模型 5

2.3 仿真模型 7

2.4 性能分析 9

3 消息驱动跳频通信系统10

3.1 组成原理10

3.2 发射机设计10

3.3 接收机设计12

3.4 性能分析13

3.5 核心问题的重点研究14

4 系统仿真16

4.1 经典跳频仿真16

4.2 消息驱动跳频仿真20

4.3 对比分析23

总结24

致谢25

参考文献26

1 绪论

1.1 研究背景

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