海圖深度 的英文怎麼說
中文拼音 [hǎitúshēndù]
海圖深度
英文
charted depth-
This paper also ana1yzes the sidescan mapping princip1e of the mu1ti - - beam bathymeter, and process the avai 1ab1e data with sidescan mapping method to achieve the sidescan imagery represented by the reverberation strength
本文還對多波束測深聲納側掃成像原理進行分析,利用現有的數據進行多波束側掃成像處理,形成表示海底反向散射信號強度的海圖。Applying the information extracted from numerous hydrographic data of field trials collected by h / hcs - 017, the first set of multi - beam swath bathymeter developed in china, a series of mosaic techniques have been carefully studied in this thesis, including digital terrain model building, statistical error analyzing, hydrographic data mosaicking as well as tides correction and projection of the earth coordinates. finally, standard digital sea - charts and three dimensional seafloor images are successfully developed that are consistent with hydrographic surveying principles
本文利用我國第一臺h hcs ? 017型條帶測深儀的測量數據進行拼圖技術的研究,主要研究的內容有:利用分帶原理對深度數據進行潮汐修正,得到瞬時海面的深度數據;對測深數據進行誤差分析處理,去除野值;將多波束數據進行坐標變換及投影轉換后構建數字地理模型,進而根據海道測量規范繪制標準海圖。Chart datum : the level to which soundings or tide heights are referenced
海圖基準面:測量水深或潮水高度的基礎高度。The software adopts eofs to describe the sound speed profile in the sea, and takes its bottom depth parameters from inputed digital chart. the software can process more complex 3 - dimension sound field
軟體中採用經驗正交函數來描述海洋中的聲速剖面,海底深度參數以數字海圖的形式輸入,可以處理較復雜的三維情況下的海洋環境聲場。In this paper, firstly, the main methods of irnaging underwater and underwatr optical imaging development history are being introduced. coilsboction, principle and working circumstance of swg - l are noted. the optical properties of sea water are described, the effect to underwater imaging is analyzed. there are two parameters in evalvating tmderwater driaging quality : underwater contrast and optical tranfe fimction. underwater light source shoud be pay more attention. estimate and measurement of underwater light value are given at the sea depth where the system working
然後對水的光學特性及其對水下成像的影響進行了理論分析,介紹了水下圖象質量評價的兩個參數即水中對比度和光學傳遞函數;對預期拍攝深度的海中照度進行了理論估算與實際測量;討論了水下目標輔助照明時應注意的問題。分享友人