torpedo noise 中文意思是什麼
torpedo noise
解釋
魚雷噪聲-
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。 -
( 4 ) applying measurement noise automatic weighting kalman filter to the guidance of line - guidance torpedo, we compromised target information and torpedo information, which in turn come from sonar of guidance station and inertial measurement units of torpedo
（ 4 ）將多傳感器量測噪聲自動加權卡爾曼濾波應用在線導魚雷制導中，融合來自製導站聲納測量到的目標信息和來自魚雷慣性測量組件的魚雷位置和姿態等信息進行了模擬研究。 -
Experimental investigation of noise reduction on torpedo model by using the gas bubble screen technique
魚雷氣幕屏蔽及模型降噪試驗研究 -
Specification for digital internal measure recoding equipment of torpedo - self noise
魚雷自噪聲數字式內測記錄設備規范 -
The convergences of these algorithms are proved in theory. their output signal - to - noise ( snr ) is derived and bigger than that of the traditional adaptive line enhancer ( ale ). simulation with the torpedo - radiated data indicates that the proposed algorithms are much better than the ale and the short - time correlation based adaptive line enhancer ( scbale ) in suppressing gaussian noise and enhancing spectrum feature
對該演算法的收斂性能進行了嚴格的證明，推導了該演算法輸出信噪比的計算公式，證明了該信噪比總是大於基於lms的自適應線譜增強器的輸出信噪比，定義了評價演算法性能的若干參數。 -
Simulation for torpedo radiated noise propagation properties
魚雷輻射噪聲傳播特性的模擬 -
If you add to this the effects of a sonar set mounted in the small nose of a torpedo rushing through the water at speeds up to 80 miles per hour with its consequence noise and vibration, plus hull borne vibrations from the power plant, it can be seen that only the most advanced electronic filtering gives any chance of success
如果再加魚雷在水中以每個小時高達80海里的速度前進時所產生的噪聲和震動對安裝在小小雷頂聲納的作用，加之動力裝置所產生的殼體振動，就不難看出，只有最先進的電子濾波才可能有成功的機會。 -
Specification for external measuring equipment of torpedo noise
魚雷外場噪聲測量設備規范 -
On the basis of summarization of the simulating technology of sonar signal, the paper brings forward the mathematics models of radiate noises of ships and torpedo, and simulates in computer ; tests the correctness of some pivotal methods through the simulation, on the basis of which, system scheme being brought out ; a parallel processor with twelve sharcs, combining with parallel processing theory and topographic configuration, is used to realize the algorithm of noise simulation on the basis of research on optimum distribution of algorithm and method of embedment in real time ; at last, gui, realized with vc + + language, is used to set parameters and control the whole parallel system flexibly and conveniently
本文在綜述聲納信號模擬技術的基礎上，首先提出艦船和魚雷輻射噪聲的模擬數學模型，並進行了計算機模擬實現；通過計算機模擬驗證了一些關鍵技術的正確性，並由此提出系統實時實現方案；構造了一個12個處理器的并行處理機? sharc陣列，結合併行處理理論和sharc陣列的拓撲結構研究了有關模擬演算法的最優分配及其嵌入整個聲納系統的方法，實時實現了噪聲模擬演算法。最後，使用vc + +語言編寫人機界面，靈活、方便地進行參數設置以及對整個并行處理系統進行控制。
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