ray approximation 中文意思是什麼
ray approximation
解釋
射線近似法- ray : n 雷〈姓氏，男子名， Raymond 的昵稱〉。n 1 光線，射線，熱線；〈詩〉光輝，閃爍，曙光，一線光明。2 ...
- approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
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The thesis analyzes the transmitting characteristic of the uwa channel, derives the propagation losses, eigenrays and channel impulse responses of uwa channel by use of the kraken normal wave mode and the ray trace algorithm based on velocity - depth curvilinear profile approximation. based on the analysis, a scheme of auto - replying lduwarc system by means of spread spectrum technique has been designed
論文首先分析了遠程聲遙控通道傳輸特性，分別利用kraken簡正波和射線跟蹤模型對深海和淺海水聲通道的傳輸特性進行分析，對通道的多徑結構、衰落和環境噪聲進行了計算，並在此基礎上設計了基於擴頻技術的自主應答式遠程聲遙控系統方案。 -
For the coupling between the laser diode and the tapered single - mode fiber, the overlap integral is used to compute the coupling efficiency on the basis that the laser diode outputting mode field and the fiber eigenmode field is approximated to basic - mode gauss field. and based on the same approximation, the coupling efficiency between the semi - tapered fiber and the laser diode is calculated by using the ray - traced method. the parameters are analyzed for the effect on the coupling efficiency and give the theory foundation to optimize the design of the tapered fiber coupling system
首先通過對半導體激光器輸出模式場和光纖本徵模式場的高斯基模近似，利用交疊積分計算了錐形單模光纖與激光器的耦合效率問題；其次依據以上近似，利用光線跡蹤法計算了半錐形多模光纖與激光器的耦合效率問題，給出各個參數對耦合效率的影響和作用，為優化設計錐形光纖耦合系統提供了理論依據。 -
Experimental results show that our local surface reconstruction and ray - tracing method is fast, with high approximation accuracy and high rendering quality, and is also adaptive to models with different sampling densities
實驗結果表明，文中演算法速度快、逼近程度好、繪制質量高，能夠自適應不同采樣密度的模型。
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