發(fā)布時(shí)間：2019-01-24 13:44

【摘要】：隨著數(shù)據(jù)存儲(chǔ)能力和處理速度的提高,三維激光掃描系統(tǒng)逐漸具備全波形采集和分析技術(shù)。為了從全波形數(shù)據(jù)中獲得脈沖時(shí)間、幅度、脈寬以及多回波分布等綜合信息,波形分解成為了全波形激光雷達(dá)數(shù)據(jù)處理的關(guān)鍵技術(shù)之一。針對(duì)LM算法在一定程度上依賴(lài)初值,而傳統(tǒng)激光雷達(dá)數(shù)據(jù)處理容易遺漏部分重疊的返回波,本文提出了一種改進(jìn)回波分量初值設(shè)定的算法來(lái)獲取回波脈沖的位置、寬度和強(qiáng)度。針對(duì)一套自主研發(fā)的全波形記錄激光雷達(dá)演示系統(tǒng)進(jìn)行了波形分解試驗(yàn),定性和定量分析結(jié)果驗(yàn)證了該方法的有效性、可靠性和準(zhǔn)確性。
[Abstract]:With the improvement of data storage capacity and processing speed, 3D laser scanning system gradually has full waveform acquisition and analysis technology. In order to obtain pulse time, amplitude, pulse width and multi-echo distribution from full waveform data, waveform decomposition has become one of the key technologies of full waveform lidar data processing. In view of the fact that the LM algorithm depends on the initial value to some extent, and the traditional laser radar data processing is easy to omit some overlapping return waves, this paper proposes an improved algorithm to set the initial value of the echo component to obtain the position, width and intensity of the echo pulse. The waveform decomposition test is carried out for a fully waveform recording lidar demonstration system developed by ourselves. The results of qualitative and quantitative analysis verify the validity, reliability and accuracy of this method.
【作者單位】： 武漢大學(xué)測(cè)繪遙感信息工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院武漢物理與數(shù)學(xué)研究所波譜與原子分子物理國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(41571370;41505027;41601360)~~
【分類(lèi)號(hào)】：P237
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本文編號(hào)：2414531