圓錐掃描式機(jī)載激光測(cè)深系統(tǒng)掃描軌跡建模與分析
[Abstract]:In this paper, the geometric modeling of the laser foot scanning trajectory of the conic scanning airborne laser sounding system on the sea surface is carried out, and the average measuring point density and coverage efficiency of the laser foot scanning trajectory in hydrological mode are analyzed emphatically. According to the geometric model, taking the CZMIL airborne laser sounding system as an example, it is calculated that the ratio of the minimum distance of the laser foot in the bi-directional scanning region is 99.78% in the single-route measurement mode, and the minimum distance of the laser foot is less than 1.6m in the two-way scanning region. The average number of laser footers in the grid with the size of 5m 脳 5m is 11.93. In addition, the side overlap degree of laser sounding system and the scanning track of two routes are analyzed. It is concluded that 31.3% side overlap degree can ensure no flight loophole, but the enhancement effect of laser foothold point density is not obvious. Finally, the non-uniformity of laser foot distribution is analyzed, and the effect of different parameters of laser sounding system on the measurement point density and measurement efficiency is discussed.
【作者單位】: 信息工程大學(xué);
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目(41201392)
【分類號(hào)】:P229
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