sonar equation 中文意思是什麼
sonar equation
解釋
聲吶方程-
Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the euler ' s theorem and the coordinate transform is introduced. the dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. so it offers theory foundation for analyzing the dynamic characteristic and designing robust control
由於獵雷艇作為動基座的存在和聲納基陣的框架結構特點，提出了以艇體坐標系為運動坐標系，運用變形的歐拉定理和坐標變換建立聲納基陣相對自身坐標系的旋轉運動方程的建模思想；將所建立的矢量形式的動力學模型展開整理，獲得了狀態矩陣形式的獵雷聲納基陣動力學方程，為系統動力學模型的實用化奠定了基礎。 -
An innovative and novel concept of communication sonar equation ( cse ) is introduced in the dissertation. according to the communication sonar equation ( cse ), all solutions for improving the working range of underwater communication system are fully discussed. considering the restrictions in practical application, some methods are confirmed, others are discarded
本文從概念上創新性地提出了通信聲吶方程，並根據通信聲吶方程全面剖析了增加水聲通信系統作用距離的各種可能途徑，然後結合實際應用的要求確定了本研究具體可採用的措施並加以實現。 -
At the basis of designing underwater geomorphological measurement system concrete plan, this dissertation makes study and analysis on its measuring depth of water sonar system and dynamic global position system. this dissertation simply and thoroughly introduces the state of underwater acoustic transducer and array. it covers the basic situation, the study benefits, the classification and role, analyses the performance index, designs the performance parameter relating to themselves performance synthesis and sonar equation
論文在制定水下地貌測量系統技術方案的基礎上，論述了該系統中的水深測量聲納系統和動態定位系統（ dgps ） ，分析了水聲換能器及基陣的性能指標，確定了換能器及基陣的主要性能參數。 -
The propagation characteristics of underwater acoustic channels and their influences on long - range information transmission are studied thoroughly. based on the sonar equation, the optimal frequency band is abtained. from the calculation about transmission loss, the source level is forecasted. based on the random time varying channel theory, the fading characteristics of long - range underwater acoustic channels are analyzed
系統、深入地研究了水聲通道特性及其對水聲遠程信息傳輸系統的影響；從聲納方程出發，確定了系統的最佳工作頻段；在聲傳播損失計算的基礎上，給出了聲源級的預報；基於時變通道理論，描述了遠程水聲通道的衰落特性。
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