中文摘要随着经济水平的提升，水污染日益严重，对于水污染的防治迫在眉睫。而本文就着重致力于拓展毫米波辐射特性检测在水面植被污染监测与预警方面应用的研究。首先，本文对当今水污染现状和毫米波特性进行了阐述。随后，本文对被动辐射原理和典型辐射计做了介绍，并引入了数据传输思想。接下来通过对反射率和水面亮温的分析，建立了基于相干法和非相干法的三层介质模型并进行相关验证。本文主要采用3mm波段毫米辐射计(8mm为辅助)于校内和太湖进行实验，验证了三层介质模型的正确性并证明了毫米波辐射特性检测在水污染检测的突出优点，并在此基础上建立了监测预警机制的框架。最后指出了尚存在的不足，并对该技术的发展前景做了展望。78455

毕业论文关键词  水面植被      3mm毫米波     相干法       三层介质模型      监测预警   

外文摘要 Title      Design and Analysis of Millimeter Wave Radiation Monitoring to Water Pollution in Taihu Lake       

Abstract In recent days, with the development of the economy level, the water pollution is becoming more and more serious。 It's just right time to prevent and govern the water pollution, and this paper is mainly devoted to expanding the research of millimeter wave radiation characteristic testing on the surface of the water pollution monitoring and early warning 。

First of all, the present status of water pollution and characteristics of millimeter wave are expounded。 Secondly, the principle of passive radiation and typical radiometer is presented and some opinion about data transmission is introduced。 Next, through the analysis of the reflectance and water-surface bright temperature, a three layer medium model based on coherent and noncoherent method is proposed and the related tests to prove it are put into effect。

Experiments in this paper mainly use the 3 mm band millimeter radiometer in campus and taihu lake。 These experiments verify the correction of the three layer medium model and prove that the millimeter wave radiation characteristic testing has prominent advantages in water pollution。 Based on these principles, the framework of monitoring and early warning mechanism is established。

Finally the shortages remaining are pointed out, and the development prospect of this technology are discussed。

Keywords   surface vegetation            3 mm millimeter wave 

Coherent method        Three layer medium model        Monitoring and early warning

目 录

1  绪论 1

1。1  引言 1

1。2  毫米波探测的特点 1

1。3  选题意义及本文安排 2

2  毫米波的被动辐射与数据传输原理 4

2。1  被动辐射原理 4

2。1。1  基尔霍夫辐射定律 4

2。1。2  普朗克辐射定律 4

2。1。3  其他辐射定律 5

2。1。4  非黑体辐射的三种温度 6

2。2  典型辐射计介绍 8

2。2。1  狄克式微波辐射计 8

2。2。2  辐射计的定标方法 10