本文選題：GPS變形監(jiān)測 + 小波分析��； 參考：《西南交通大學(xué)》2013年碩士論文

【摘要】：對變形體進(jìn)行監(jiān)測是為了有效監(jiān)視變形體的位移情況,并且通過不間斷的、長期的重復(fù)測量跟蹤監(jiān)測目標(biāo),保證工程的安全性和可靠性,意義重大。近年來,GPS技術(shù)的應(yīng)用得到迅猛發(fā)展,作為一種新的空間定位模式,在諸多領(lǐng)域,尤其是測量領(lǐng)域,取代傳統(tǒng)的電子測量方法和光學(xué)測量方法。GPS變形監(jiān)測的發(fā)展能夠帶來直接的經(jīng)濟(jì)效益,有效減輕測量工作的工作強(qiáng)度,極大提高工作效率。但前提是必須處理好GPS本身獲取的數(shù)據(jù)和變形監(jiān)測數(shù)據(jù)序列之間的關(guān)系,真正意義滿足形變目標(biāo)監(jiān)測的需要�；贕PS技術(shù)的變形監(jiān)測數(shù)據(jù)的處理與分析的具有較大的實(shí)際研究意義,特進(jìn)行了本課題的研究。 本文詳細(xì)介紹了GPS變形監(jiān)測數(shù)據(jù)處理技術(shù),并比較了監(jiān)測數(shù)據(jù)處理技術(shù)的優(yōu)劣優(yōu)缺點(diǎn),指出其中存在的問題。本文詳細(xì)分析了GPS技術(shù)在測量過程中產(chǎn)生誤差的原因和影響規(guī)律,同時給出了減少誤差的各種方法,在此基礎(chǔ)上,設(shè)計出GPS測量技術(shù)應(yīng)用于變形監(jiān)測的作業(yè)模式,給出分析結(jié)果。 作為一種高性能的信號分析方法,小波分析方法是小波理論的應(yīng)用示例,GPS變形監(jiān)測的數(shù)據(jù)處理當(dāng)中,本文詳細(xì)研究強(qiáng)噪聲背景下有用信號的提取,同時結(jié)合地殼變形監(jiān)測為例,從粗差的探測及數(shù)據(jù)去噪等對測實(shí)測數(shù)據(jù)進(jìn)行處理,取得了滿意效果,驗(yàn)證了變形監(jiān)測數(shù)據(jù)處理的可靠性與可行性。
[Abstract]:The purpose of monitoring deformable bodies is to monitor the displacement of deformable bodies effectively, and to ensure the safety and reliability of engineering by continuous and long-term repeated measurements to track the monitoring targets. In recent years, the application of GPS technology has been developed rapidly, as a new spatial positioning mode, in many fields, especially in the field of measurement, The development of GPS deformation monitoring instead of traditional electronic and optical measurement methods can bring direct economic benefits, effectively reduce the work intensity of the measurement work, and greatly improve the working efficiency. However, it is necessary to deal with the relationship between the data acquired by GPS and the deformation monitoring data sequence, and the real significance is to meet the needs of deformation target monitoring. The processing and analysis of deformation monitoring data based on GPS technology is of great practical significance. This paper introduces the GPS deformation monitoring data processing technology in detail, compares the merits and demerits of the GPS deformation monitoring data processing technology, and points out the existing problems. In this paper, the causes and influence rules of GPS errors in the measurement process are analyzed in detail. At the same time, various methods to reduce errors are given. On the basis of this, the operation mode of GPS measurement technology applied to deformation monitoring is designed. The analysis results are given. As a high performance signal analysis method, wavelet analysis method is an example of the application of wavelet theory in GPS deformation monitoring data processing. In this paper, the extraction of useful signals under strong noise background is studied in detail, and the crustal deformation monitoring is taken as an example. The processing of measured data from gross error detection and data denoising has achieved satisfactory results and verified the reliability and feasibility of deformation monitoring data processing.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P228.4;P227

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本文編號：2094543