impulse approximation 中文意思是什麼
impulse approximation
解釋
沖稽似- impulse : n. 1. 沖動；【物理學】沖量；推進力；脈沖，【醫學】沖動，搏動。2. 鼓舞，刺激；一時高興，興奮。vt. 推動。
- 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。 -
It has important theoretical meaning for reflecting the research of the interaction potential of nuclear force has important theoretical meanings in the framework of glauber theory and distorted wave impulse approximation ( dwia ), being spin - independent, inelastic scattering three low exciting states ( j * = 2 ~ ( + ), 4
本工作的目的是藉助反質子-核散射來探索反核子-核子相互作用勢的最佳形式及相應的勢參數，對反映核力的相互作用勢的研究具有十分重要的理論意義。
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