海洋聲學 的英文怎麼說
中文拼音 [hǎiyángshēngxué]
海洋聲學
英文
marine acoustics-
The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively, in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system, then found some models such as target echo signal, noise ( including background noise, target radiating noise, etc ), ocean reverberation. according to them, simulate the array signal ; ( 3 ) the system structure, every function blocks composing are studied and founded thoroughly. then, discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts, which connected with torpedo ' s control part
本文所作的主要工作及研究成果主要有以下幾個方面： （ 1 ）對自導工作過程中的信號與信息處理的基本理論與方法進行了較為全面的研究，為建立一個較為完備的自導模擬系統提供了理論基礎； （ 2 ）討論了自導系統工作過程中海洋通道對目標回波信號與目標輻射噪聲信號等的影響，建立回波信號的數學模型、環境場中的噪聲信號模型（包括海洋環境噪聲、目標輻射噪聲與魚雷背景噪聲等）與海洋混響模型，模擬產生了聲自導系統基陣接收到的回波信號與噪聲信號； （ 3 ）深入研究並建立了自導模擬系統的總體框架，給出各個具體功能模塊組成，討論了聲自導系統對信號的時域與空域處理，並結合模擬程序中陣列信號處理模塊，給出固定多通道波束形成的模擬實現過程； （ 4 ）根據系統的模擬模型與已建立的模擬流程圖編制了通用魚雷模擬器自導系統模擬軟體，通過網路與控制系統相連，組成完整的魚雷模擬器。Proclus, the commentator of " timaeus " mentions that marcellus, relying on ancient historians, stated in his aethiopiaka that in the outer ocean ( which meant all oceans, not just the atlantic ) there were seven small islands dedicated to persephone, and three large ones ; one of these, comprising 1, 000 stadia in length, was dedicated to poseidon
「提瑪亞斯」的評論員保格斯根據古代歷史學家，提及到馬爾凱盧斯，在他的《阿爾賽俄比亞》中聲稱是在外面的海洋（意思是所有的海洋，不僅是大西洋）有七個獻身於珀爾塞福涅的小島，還有三個較大的，其中一個的長度是由1000視距組成，是獻身於海神波塞冬。Xu bohou, li huafeng, duan fabing and li jianlong. the application of parameter - tuning stochastic resonance in signal processing, accepted by the fifth int. conf. on stochastic structural dynamics
李華鋒，鮑榮浩，徐博侯.應用隨機共振進行海洋噪聲背景下的信號檢測.浙江大學學報（工學版） ，收錄Acoustic positioning system has wide application in ocean scientific field. however, existing systems have disadvantages of bulkiness, perplexing operation, limited position range and low precision, resulting in their incompetence of satisfying many application needs
水聲定位系統在海洋科學領域應用廣泛，但原有系統大多或設備龐大、操作復雜，或定位范圍小、精度低，很難真正下滿足使用需求。U. s. biologists were counting on an underwater recording of humpback whale songs to lure two injured whales back down the sacramento river and toward the ocean
美國生物學家利用座頭鯨聲音的水下錄音，試圖引導兩只受傷鯨魚掉頭離開沙加緬度河回到海洋去。Amos acoustic meteorological oceanographic survey
海洋氣象聲學探測Overhead satellites, diving robotic probes, buoys, sonar mapping, floating and underwater observatories and tagged ocean animals ( whose tags email scientists every day with an update as to where they ' ve been and what they ' ve been doing ) allow scientists to see more of the oceans than ever before
太空中的衛星、潛水機器探測器、浮標、聲波定位儀、海面與海底實驗室，以及被做了標記的海洋動物（這種標記能讓科學家每天都得知這些動物到了那裡，正在做什麼）讓科學家比以前對海洋有更多的了解。Ray model is one of the conventional sound propagation models, which is simple, intuitionistic and suitable for all kinds of signals and can work in range - dependent environments. so ray model which is used in modeling the acoustic field is an important sound propagation model of ocean acoustic tomography
射線聲學簡單、直觀，適用於各種信號，並且可以計算介質參數隨距離變化情況下的聲場，因此，射線聲學模型也是海洋聲層析研究中重要的聲場建模方法。With this tech, we design a high - efficient & robust mfsk data transmission system. but in frequency diversity of mfsk system, it is very difficult to tell which diversity is the correct carrier frequency. now we use the temporary phase swift ( ips ) method to solve the difficulty
在2000年，美國海軍成功通過水聲鏈路並接入internet網路發送e mail ，這具有重要的戰略意義；從科學技術發展的角度來看是喜訊，但對我們這樣一個海洋大國來說，更現實的意義在於鞭策自己的科研工作。Corresponding aspects of underwater sound channel are summarized and a proper simulation model based upon ray - model is presented ; 5
對海洋聲通道的有關問題作了綜述，給出了一種適合模擬系統的基於射線聲學的海洋聲通道模型； 5He was the son of an engineer … had been a student of law but had succumbed to the madness of music. . had studied under rubinstein. . and now, at thirty - six, was adrift on the sea of sound with no harbor of security in sight
他是個工程師的兒子… …一個學法律的學生… …但「極其迷戀音樂」 ， …師事于魯賓斯坦… ? ，現在， 36歲了，還「在聲之海洋中漂泊，望不到一個安全的港口」 。分享友人