基于多普勒原理的微波测距系统的研究与设计

发布时间：2018-01-16 21:38

本文关键词：基于多普勒原理的微波测距系统的研究与设计　出处：《吉林大学》2017年硕士论文　论文类型：学位论文

【摘要】：距离,是指在空间上两点相隔的长度。测距是我们日常生活和工作中最基本的任务之一。从古时起,勤奋而智慧的人们便开始着手探究,至今为止我们便有了距离的测量单位"尺"、"寸"、"里"以及国际单位"千米"、"米"、"厘米"等等。同时由于技术与时代的局限性,在探索的过程中也引发了"以指测河","以锥刺地"等等不达目的的方法。随着科技和时代的进步,城市发展建设加快。在信息化,高速化,智能化的时代,距离测量已经成为一种不可或缺的技术之一,地形、工程测量都需要一定的测距手段。而现在人们已经掌握了针对于各种形势下的有效测距方法。主要有:超声测距传感器,激光测距传感器,雷达测距传感器,红外线测距传感器。本课题在物理原理的基础上推导测距公式并设计实验总体框架,论文前两章节介绍了现代测距技术、各类传感器、介绍了微波测距的背景并推导测距公式,第三章设计实验总体框架,并验证第二章推导出的测距公式,采用探头移动测量静态单一目标。验证了多普勒测距公式(?)的可行性。结合单片进行频率采集和显示,实现了多普勒微波测距方法,研制出新型的测距装置。其结构简明,易于操作;传感器灵敏度高,响应度高,感应范围广,不易受温度、噪声、天气、湿度的影响等特点。
[Abstract]:Distance is the length between two points in space. Ranging is the most basic part of our daily life and work Ren Wuzhi. Since ancient times, diligent and intelligent people have begun to explore. So far, we have the measurement units of distance "ruler", "inch", "li" and international unit "kilometer", "meter", "centimeter" and so on. At the same time, due to the limitations of technology and times. In the process of exploration, the methods of "pointing and measuring the river", "taper", etc. With the progress of science and technology and the times, urban development and construction are accelerated. In the age of information, high speed and intelligence. Distance measurement has become one of the indispensable techniques of terrain. Engineering measurement all need certain ranging means. But now people have mastered the effective ranging methods for various situations, mainly: ultrasonic ranging sensor, laser ranging sensor, radar ranging sensor. Infrared ranging sensor. Based on the physics principle, this topic deduces the ranging formula and designs the overall experimental frame. The first two chapters of the paper introduce the modern ranging technology and various sensors. The background of microwave ranging is introduced and the formula of ranging is deduced. In chapter 3, the experimental framework is designed, and the formula derived in chapter 2 is verified. The static single target is measured by moving probe. The formula of Doppler ranging is verified. Based on the frequency acquisition and display of single chip, the Doppler microwave ranging method is realized, and a new ranging device is developed, which is simple in structure and easy to operate. The sensor is sensitive, responsive and sensitive to temperature, noise, weather and humidity.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN953.2

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