本文選題：高溫目標(biāo)　切入點(diǎn)：輻射特征　出處：《中國(guó)科學(xué)院研究生院（上海技術(shù)物理研究所）》2014年碩士論文

【摘要】：目標(biāo)羽焰會(huì)產(chǎn)生極強(qiáng)的紅外輻射，是最為明顯的高溫目標(biāo)，尾焰在2.7μm和4.3μm波段附近有較強(qiáng)的紅外輻射。同時(shí)，地球上的高溫現(xiàn)象也是普遍存在的，如火山噴發(fā)、森林大火等。這些高溫現(xiàn)象的發(fā)生都會(huì)向外輻射大量的電磁波，引起熱異常。由于高溫目標(biāo)具有突發(fā)性、溫度高等特點(diǎn)，無(wú)法現(xiàn)場(chǎng)測(cè)量，而應(yīng)用遙感技術(shù)可以方便地實(shí)現(xiàn)大范圍監(jiān)測(cè)，，在各領(lǐng)域被廣泛應(yīng)用。若要在紅外波段有效探測(cè)導(dǎo)彈目標(biāo)，則需要提供大量紅外圖像進(jìn)行分析，但是目前以2.7μm和4.3μm為中心波長(zhǎng)的波段成像較少。為了解決這一問(wèn)題，對(duì)可能產(chǎn)生干擾的高溫目標(biāo)進(jìn)行波段轉(zhuǎn)換，進(jìn)行紅外成像的仿真是一種有效的途徑。 本文在深入研究高溫目標(biāo)遙感成像機(jī)理的基礎(chǔ)上，根據(jù)高溫目標(biāo)和周圍環(huán)境的差異特征對(duì)高溫目標(biāo)進(jìn)行識(shí)別與提取，對(duì)高溫目標(biāo)的輻亮度進(jìn)行仿真，通過(guò)統(tǒng)計(jì)分析方法建立波段間的關(guān)系。從高溫目標(biāo)遙感特征識(shí)別、高溫目標(biāo)數(shù)據(jù)仿真、高溫目標(biāo)波段轉(zhuǎn)換關(guān)系建模等方面詳細(xì)闡述高溫目標(biāo)波段轉(zhuǎn)換方法，并且針對(duì)冰島區(qū)域的火山圖像進(jìn)行轉(zhuǎn)換分析。本文的主要研究?jī)?nèi)容如下： （1）選擇合適的高溫目標(biāo)識(shí)別方法對(duì)高溫目標(biāo)進(jìn)行識(shí)別、提取。目前國(guó)內(nèi)外對(duì)高溫目標(biāo)的識(shí)別方法研究較多，但是針對(duì)不同環(huán)境、不同目標(biāo)的識(shí)別仍有差異，本研究中結(jié)合目標(biāo)環(huán)境采用合適的識(shí)別方法對(duì)高溫目標(biāo)進(jìn)行識(shí)別并提取。 （2）首次提出對(duì)不同波段的仿真數(shù)據(jù)進(jìn)行建立轉(zhuǎn)換關(guān)系。從遙感成像的機(jī)理出發(fā)，針對(duì)相同的目標(biāo)，相同的探測(cè)器，不同的波段成像差異為受大氣輻射傳輸?shù)挠绊懖煌�。采用輻射傳輸模型進(jìn)行不同波段的數(shù)據(jù)仿真，對(duì)數(shù)據(jù)進(jìn)行分析，建立波段轉(zhuǎn)換關(guān)系，提出仿真成像的新方法。 （3）對(duì)波段轉(zhuǎn)換模型進(jìn)行應(yīng)用并驗(yàn)證。建立波段轉(zhuǎn)換方法的目的是通過(guò)已知波段圖像轉(zhuǎn)換得到未知波段的圖像，這對(duì)轉(zhuǎn)換結(jié)果的驗(yàn)證造成了一定的困難。本文選取一已知波段作為目標(biāo)波段，利用波段轉(zhuǎn)換方法進(jìn)行轉(zhuǎn)換，轉(zhuǎn)換結(jié)果與原圖像值進(jìn)行對(duì)比，以此驗(yàn)證本文建立的波段轉(zhuǎn)換方法的可行性。
[Abstract]:The target of plume infrared radiation will produce a strong, high temperature is the most obvious target, the plume has stronger infrared radiation in the vicinity of 2.7 m and 4.3 m wavelength. At the same time, the phenomenon of high temperature of the earth is widespread, such as volcano eruption, forest fires. These high temperature phenomenon happens will radiate electromagnetic wave caused by large amount of heat anomaly. Due to the high temperature target is sudden, high temperature, no field measurement, and the application of remote sensing technology can easily realize large-scale monitoring, is widely used in various fields. To effectively detect the infrared missile target, you need to provide a large amount of infrared image analysis, but the 2.7 m and 4.3 m wavelength band imaging is less. In order to solve this problem, the spectral conversion of the high temperature target may interfere with the simulation of infrared imaging is an effective way.
Based on the study of high temperature target remote sensing imaging mechanism, based on the high temperature target recognition and extraction temperature difference of targets and environment characteristics of high-temperature target radiance simulation, analysis of the relationship between the statistical methods to establish the band. From the high temperature remote sensing target feature recognition, target data simulation on high temperature, high temperature target band switching relationship modeling detail conversion method of high temperature target band, and according to the analysis of Iceland regional image conversion volcano. The main contents of this paper are as follows:
(1) selection of high temperature target recognition method suitable for recognition of high-temperature target extraction. The research on the target recognition method of high temperature at home and abroad, but according to different environment, different target recognition are different, this study combines the target environment with appropriate identification methods for identifying and extracting of high temperature target.
(2) first proposed conversion relationship is established for the simulation data of different bands. Starting from the mechanism of remote sensing imaging, for the same goal, the same detector, imaging differences of different influence on atmospheric radiative transfer simulation. Using different data of different wavelength radiation transmission model, analysis of the data, set up the conversion the relationship between bands, we proposed a new method of imaging simulation.
(3) the band switching model and verify the application. A band conversion method is to obtain images of unknown bands by a known band image conversion, thus it is difficult to verify the conversion results. This paper selects a band known as the target band, conversion wave section conversion method, the conversion results were compared with the the original image in order to verify the feasibility of the conversion value, this method is the band.

【學(xué)位授予單位】：中國(guó)科學(xué)院研究生院（上海技術(shù)物理研究所）
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：P237

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 范玉珠;張為華;劉杰;;預(yù)警衛(wèi)星對(duì)導(dǎo)彈主動(dòng)段的探測(cè)功能仿真[J];航天控制;2009年03期

2 劉惠英;楊遼;張思玉;;MODIS數(shù)據(jù)及其在森林防火中的應(yīng)用[J];世界林業(yè)研究;2006年04期

3 何全軍;劉誠(chéng);;MODIS數(shù)據(jù)自適應(yīng)火點(diǎn)檢測(cè)的改進(jìn)算法[J];遙感學(xué)報(bào);2008年03期

本文編號(hào)：1716321