【摘要】：多波束測(cè)深系統(tǒng)以其較寬的海底探測(cè)覆蓋率、較高的數(shù)據(jù)采集效率和施測(cè)方便等優(yōu)點(diǎn),在海洋測(cè)繪中得以廣泛的應(yīng)用。近二三十年來,世界各國(guó)在多波束系統(tǒng)硬件和多波束數(shù)據(jù)處理軟件方面進(jìn)行了大量研究,并取得了非常豐富的成果。多波束系統(tǒng)除了能夠獲取高密度的水深數(shù)據(jù)外,其數(shù)據(jù)包中還包含大量回波強(qiáng)度信息。回波強(qiáng)度信息經(jīng)過處理后得到的反向散射曲線和海底聲納圖像是用于海底底質(zhì)分類的重要數(shù)據(jù)基礎(chǔ),國(guó)外針對(duì)此方向的研究已經(jīng)取得較為豐富的成果并形成了相應(yīng)的基于多波束數(shù)據(jù)進(jìn)行海底底質(zhì)分類的應(yīng)用軟件。本文首先系統(tǒng)介紹了多波束進(jìn)行海底底質(zhì)分類的原理;進(jìn)而結(jié)合海上試驗(yàn)內(nèi)容介紹EM3000型多波束系統(tǒng)進(jìn)行海底測(cè)量的作業(yè)過程,得到實(shí)測(cè)數(shù)據(jù)后,對(duì)多波束數(shù)據(jù)進(jìn)行提取,重點(diǎn)研究了多波束回波強(qiáng)度數(shù)據(jù)提取、融合、處理、以及在其基礎(chǔ)上的聲納圖像的生成;又通過對(duì)反向散射強(qiáng)度曲線和聲納圖像進(jìn)行特征參數(shù)提取,結(jié)合分類器得到海底底質(zhì)的分布情況;最后編制了多波束數(shù)據(jù)海底底質(zhì)分類軟件,實(shí)現(xiàn)了基于多波束回波強(qiáng)度數(shù)據(jù)海底底質(zhì)范圍自動(dòng)劃分。本文研究的主要成果有:1.針對(duì)多波束回波強(qiáng)度數(shù)據(jù)量大、格式多樣的問題,提出了回波強(qiáng)度數(shù)據(jù)像素化融合方法,實(shí)現(xiàn)了對(duì)零散的回波強(qiáng)度數(shù)據(jù)的整理,為回波強(qiáng)度數(shù)據(jù)的后處理提供了方便。2.編制了多波束回波強(qiáng)度數(shù)據(jù)處理研究軟件。
[Abstract]:The multi-beam bathymetric system has been widely used in ocean surveying and mapping because of its wide seabed detection coverage, high data acquisition efficiency and convenient measurement. In the past 20 or 30 years, many countries in the world have done a lot of research on the hardware and software of multi-beam system, and have made a great deal of achievements in the field of multi-beam system hardware and multi-beam data processing software. The multi-beam system not only can obtain high-density water depth data, but also contains a lot of echo intensity information. The backscattering curves and sea bottom sonar images obtained by processing the echo intensity information are the important data basis for bottom classification. Foreign research on this direction has achieved rich results and formed the corresponding application software for bottom classification based on multi-beam data. In this paper, firstly, the principle of multi-beam classification of seabed sediments is systematically introduced. Then the operational process of sea floor survey by EM3000 multi-beam system is introduced. After the measured data is obtained, the multi-beam data is extracted, and the multi-beam echo intensity data extraction, fusion and processing are mainly studied. And the generation of sonar image based on it; By extracting the characteristic parameters of the backscatter intensity curve and sonar image, and combining the classifier, the distribution of seabed sediment is obtained. Finally, the seabed sediment classification software based on multi-beam data is programmed to realize the automatic division of seabed sediment range based on multi-beam echo intensity data. The main results of this study are as follows: 1. In order to solve the problem of large amount of data and various formats of multi-beam echo intensity, a pixel fusion method of echo intensity data is proposed, which realizes the arrangement of scattered echo intensity data, which provides convenience for the post-processing of echo intensity data. 2. A multi-beam echo intensity data processing software is developed.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P715

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 李整林,王耀俊,馬力,高天賦;海底沉積物參數(shù)對(duì)淺海中低頻聲傳播的影響[J];聲學(xué)學(xué)報(bào);2000年03期

相關(guān)博士學(xué)位論文 前1條

1 劉晨晨;高分辨率成像聲納圖像識(shí)別技術(shù)研究[D];哈爾濱工程大學(xué);2006年

，

本文編號(hào)：2451476