FPGA无人机地面测控系统中和差比相角度跟踪电路的设计与实现

摘要本文主要研究无人机地面测控系统中和差比相角度跟踪电路的实现。单脉冲角度测量法是一种常用的测量方法，通过测量一个目标回波脉冲就能获得目标的所有角度信息。本文介绍了比相单脉冲测角法测量目标无人机方位维角度的方法，并将测角结果送至伺服控制系统，实现系统对无人机的角度跟踪功能。本文根据上述无人机地面测控系统角度跟踪的需要，开展和差通道中频信号采样、下变频、角度估计和角度跟踪等功能的软硬件方案设计与实现，完成了电路各功能模块的测试和联调测试，测试结果表明，所完成的 FPGA 程序模块实现的比相单脉冲角度估计功能正确，该模块可以根据 PC 端输入的控制命令，实现角度误差查询、当前伺服系统角度查询和伺服系统控制等功能。78387

毕业论文关键词单脉冲测角 FPGA 编程伺服系统角度跟踪雷达

毕业设计说明书外文摘要

Title The Design and Implementation of Phase Comparsion Monopulse

Angle Tracking Circuits for the UAV Ground Control System

Abstract This paper mainly studies the design and implementation of phase comparsion monopulse angle tracking circuits for the UAV Ground Control System。Monopulse angle measurement is designed to realize the angle measurement,which only one pulse of target echo is required to get all dimensions of target angle。 This paper introduces a method of measuring the phase comparison monopulse angle measurement, and the result is sent to the servo control system to realize the function of tracking system of UAV。In this paper, according to the needs of the UAV Ground Control System,the functions is designed and implemented including the Sum-Differential Channel intermediate frequency signal sampling,down-converting, angle estimation and angle tracking。 And the test of each function module of the circuit is also completed。 The test results show that the FPGA program modules achieve the phase comparison monopulse angle estimation function correctly。In the module,the angle error inquiry , the current servo system angle inquiry and the servo system control are realized according to the control command of the PC。

Keywords monopulse angle measurement FPGA programming servo system Angle tracking

1 绪论 1

1。1 本课题的研究背景和意义 1

1。2 国内外研究动态 1

1。3 本文研究内容 2

2 角度跟踪系统的相关原理 3

2。1 单脉冲测角技术的原理 3

2。2 多速率信号处理基础 5

3 和差比相角度跟踪系统的设计 8

3。1 系统组成与工作流程 8

3。2 硬件实现平台和 FPGA 实现框图 8

3。3 FPGA 各模块程序设计 11

4 和差比相角度跟踪系统的调试与测试 FPGA无人机地面测控系统中和差比相角度跟踪电路的设计与实现:http://www.youerw.com/tongxin/lunwen_90324.html