sonar signal processing 中文意思是什麼
sonar signal processing
解釋
聲吶信號處理-
In applications of array processing such as radar, sonar, and wireless communications, the array observed signal is best modeled as a distributed, rather than a discrete source
在雷達、聲納、無線通信等陣列處理應用環境中，由於存在豐富的多徑散射，陣列觀測信號更適合採用分佈源模型來描述。 -
Modern sonar systems generally use hydrophone arrays and advanced signal processing techniques to improve their detection and localization abilities, whereas beamforming plays an important role. as it is known, the conventional beamforming approach provides limited array gains and low interference suppression abilities, and cannot resolve multi - targets distributed within a small spatial region
但是，傳統的波束形成方式所提供的陣增益有限，對干擾的抑制能力不強，且不能分辨空間小角域內的多個目標，影響了聲吶系統整體性能的發揮。 -
High - resolution multi - source direction finding is always a hot research area in array signal processing. the breakthrough of this technique is greatly meaningful in many research fields such as sonar, radar, communication, biomedical engineering, geology and so on
陣列處理的高分辨技術一直是國內外十分關注的研究熱點，其中高分辨多目標定向技術是國內外集中力量研究的重點，該項技術的突破對聲納、雷達、地質勘探、生物醫學工程及水中兵器均有重要意義。 -
Firstly, introduce the design of sonar display, trace - to - trace correlation and gray scale display, develop a new method of gray scale based on signal noise ratio. and next, discuss array signal processing and image processing in order to improve the display. finally, develop a software of sonar display simulator based on object oriented programming, with which the sonar display console is simulated and the performance of sonar signal is tested
本文工作圍繞如何提高聲納顯示效果，介紹了聲納顯示屏幕的設計方案，論述了「跡跡相關」技術、灰度顯示技術在聲納顯示中的應用，提出了基於信噪比的灰度級別劃分方法；結合陣列信號處理、圖象處理技術，本文引入了子帶峰值能量檢測演算法、圖象邊緣檢測演算法，進一步提高了聲納檢測性能；基於面向對象的程序設計方法，設計了聲納顯示平臺軟體，為模擬聲納顯示、檢驗聲納信號顯示性能提供了模擬環境。 -
The function of sonar display console is to present the result of signal and information processing on the screen and to supply the information about the watched field to the operator
聲納顯示技術，其功能是將信號處理的結果正確地顯示在屏幕上，為操作人員提供觀測場的信息。 -
This thesis discusses on the post - processing of sonar signal which includes the search and location of the target, the pattern recognition and the neural networks classification, and also carries out a process of the sea test data with the post - process - programs to verify the validity of the pattern recognition with bp neural network, which helps to develop the sonar image processing and the image processing of other fields
本文在完成課題中的顯示控制任務同時，對聲納信號後置處理，包括目標的搜索定位以及模式識別和神經元網路識別等內容，進行了論述，並利用後置圖像處理程序對正樣機海試數據進行處理，驗證了bp神經元網路下模式識別方法在水聲圖像處理方面的有效性，有助於聲納圖像處理以及其他領域圖像處理的發展。 -
On the base of hardware approach, to discuss all the theory involve in active detecting sonar system, including the selection of signal waveform, digital signal sampling, digital signal processing
以硬體為基礎，對所涉及到的理論都作論述，包括探測聲納的信號波形選擇，數字信號采樣、處理原理與方法。 -
Embedded realization includes not only the embedment of special digital signal processing software in universal parallel processing system, but although the embedment of such parallel system in the whole sonar system
本文嘗試了嵌入式實現的方法，不僅包括在通用并行處理系統中嵌入專用的數字信號處理軟體包；而且包括將此并行處理系統嵌入到整個聲納系統中。 -
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。 -
The sonar display console plays an important role in displaying the result of signal and information processing suitable for the operators
因此聲納顯示技術是關繫到聲納信號處理系統的結果能否準確無誤的展現給操作人員的關鍵所在。 -
2. to dissert how to realize detecting sonar system on hardware. include hardware realization approach of analog signal pretreatment, digital signal processing, transmitter, receiving converter and system power supply
論述如何在硬體上實現探測聲納系統，包括模擬信號預處理機，數字信號處理機的實現，發射機，接收轉換以及系統的電源設計都給出了具體的硬體實現方案。 -
The thesis involves all - aspect of the signal processing of interferometric synthetic aperture sonar, especially in the challenging problems such as phase - preserved sas imaging algorithm, image registration, interferogram denoising filtering and two - dimensional phase unwrapping. in allusion to difficulties and emphases, some new methods are proposed. the study is important to prompt the development of interferometric synthetic aperture sonar in china
本論文對干涉合成孔徑聲納信號處理過程進行了全面的論述，對其中的關鍵技術如保相的二維成像演算法、復圖像配準、干涉圖降噪濾波和二維相位展開作了重點分析，並提出了一些新的方法，論文對推動我國干涉合成孔徑聲納信號處理技術的研究具有重要的意義。 -
Oceanic reverberation, the fiercest interference to the active sonar, should be suppressed by the sonar signal processing. this is an important problem that has not been solved successfully
克服混響干擾一直是主動聲納信號處理理論和實踐的一個重要課題，至今還沒有得到完滿解決。 -
Second discusses adaptive filter ' s application in measuring frequency of cw sonar pulse signal and in towed linear array sonar signal processing. simulation is made about adaptive filter ' s application. simulation result shows that adaptive filter is very powerful tool for underwater acoustic signal processing
接下來本文討論了自適應濾波器在cw聲納脈沖信號測頻和拖曳線列陣聲納信號處理中的應用，並進行了模擬研究，模擬結果表明自適應濾波器是處理水聲信號的十分有效的工具。 -
The key point of the research is that, although the detection performance of sonar signal processing subsystem has been optimized, there is still a space of improvement which can be achieved by the means of display and post - processing
本文的設計思想是在聲納信號處理系統的基礎上，通過聲納顯示技術和亮度調制信號的檢測技術，進一步提高信噪比，改善聲納檢測性能。
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