signal analysis 中文意思是什麼
signal analysis
解釋
信號分析-
A lot of domains are involved with, such as theory of electromagnetism, electrotechnics, electronics, measurement of electromagnetism. signal analysis, mechanics, cybernation, biomedicine, materials, technics, ect. the study of emc is very fargoing and the problem of emc is very complex
它涉及的基礎知識面非常寬廣，直接應用和涉及的知識有電磁場理論、電工原理、電子技術、電磁測量、信號分析、機械結構、自動控制、生物醫學、材料及工藝等等。 -
The eeg signal analysis based on wavelet transform
基於小波變換的腦電信號分析 -
Therefore wavelet analysis is called a microscope of signal analysis and a milestone of fourier analysis. as a new embranchment of mathematics
因此，小波變換被譽為分析信號的顯微鏡，傅里葉分析發展史上的一個新的里程碑。 -
In this research, four experiments had been designed to study the patterns and characteristics of semg signal by linear and nonlinear signal analysis methods during the short period of recovery, ischemic forearm exercise, sustained and intervallic maximal voluntary contraction of biceps brachii in twenty - eight human subjects
為探索肌肉疲勞過程中影響semg信號變化的生理因素，本研究採用線性和非線性混沌動力學兩個方面的分析方法，觀察在各種控制條件下的肌肉疲勞或恢復過程中semg信號的變化規律。 -
The fractal theory application to fault diagnosis is tried in order to overcome the defec t of wavelet transform to nonlinear signal analysis and complicated machine diagnosis, including the concept, function and application about fractal dimension and the process of applying it to analyze the libration signal of rolling bearing and engine burning
針對小波變換分析復雜非線性機械繫統時表現出的力不從心，又嘗試探討了分形理論在故障診斷領域中的應用，討論了分形維數的概念、物理意義和應用，並通過滾動軸承和發動機燃燒振動信號的分析例示探討和展示了應用分形方法進行故障診斷的方法和過程。 -
The hardware mainly consists of three parts : signal pre - amplifying and conditioning circuit is used to amplifying the microseismic signals which have detected, signal processing and target identifying circuit based on singlechip is used to convert the analog signals which have been amplified to digital signals and go through signal analysis, processing to identify the moving target, the sending and receiving setting is used to send the identifying result to the decision - making and he can take relevant action according to the result
硬體主要由三部分組成：信號調理電路對檢測到的微弱地震動信號進行放大；基於單片機的信號分析與目標識別電路將放大后的模擬信號進行a d轉換，進一步將得出的數字信號分析、處理，實現目標識別；識別結果發射與接收裝置將識別結果發射給決策者，由其根據接收結果採取相應的措施。 -
Wavelet analysis because of its good retractility has become an advantaged tool in signal analysis field. we provide a new valid way for studying the echolocation calls of bat by using this tool
而小波分析則突破了傳統的傅立葉分析方法，利用其在時域和頻域上同時具有的良好的局部性，成為信號分析的一個有利的工具。 -
The remote diagnosis center is based upon the implementation of remote signal analysis system. general methods of signal processing are discussed. they are accomplished by java, jsp programming language in j2ee environment, which can keep the balance of system and utilize resources sufficiently expert - diagnosis system is an important part in the remote diagnosis center
對于遠程診斷中心，主要研究了遠程信號分析系統的設計與實現，討論了信號分析處理常用的一些方法，並將這些方法用java 、 jsp編程語言在j2ee環境下實現，使得系統負荷平衡，更靈活、充分地利用資源。 -
Because there are defaults in the classic methods of acoustic signal analysis, a new method based on the wavelet analysis is brought forward in the paper
針對傳統的聲信號分析方法在信號特徵提取方面存在的缺陷，本文提出了一種基於小波變換的聲振動信號的特徵提取方法。 -
Adopting the latest research result on dynamic signal discrete spectrum analysis and the idea of virtual instrument, a dynamic signal analysis virtual instrument software system is developed, which is based on windows and has good performance
並採用動態信號離散頻譜分析領域最新研究成果，基於虛擬儀器設計思想，研製一套方法新、功能全、實時性好、精度高的基於windows的通用動態信號分析虛擬儀器軟體系統。 -
The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research
調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。 -
Therefore wavelet analysis is called a microscope of signal analysis and a milestone of fourier analysis
因此，小波變換被譽為分析信號的顯微鏡，傅立葉分析發展史上的一個新的里程碑。 -
In this time, as a result of major development in computer technologies and fast fourier transform wider application, many frequency analyzer based on digital signal processing theory and multi - function signal analysis software occurred. which greatly strengthened analysis function to engineer vibration signal ' s time field and frequency field
在這一時期，由於計算機的快速發展以及快速傅立葉變換的普遍應用，各種基於數字信號處理原理的頻率分析儀以及多功能信號分析軟體出現，從而大大加強了對工程振動信號的時域及頻域分析功能。 -
Based on the advanced embedded computer and network technology along with the embedded operational system such as windowsce, the instruments can gather many functions such as transmitting and measurement, compensatory computation, signal analysis and processing into one instrument. in this paper a portable instrument for vibration measurement with embedded computer system was discussed. based on windowsce real - time operation system the software of this instrument was designed and developed with evc computer language
本文基於目前流行的便攜式儀器的核心技術? ? windowsce ，設計開發了應用於現場設備振動測量分析的的便攜式測振儀表，針對現場特點和實際要求，對于測振儀的硬體系統進行了規劃設計，並重點對于儀器軟體進行開發，在windowsce平臺下，利用evc語言開發研製了儀器的應用軟體，實現了包括信號採集、分析、顯示、數據存儲和通信功能的軟體系統；並對該軟體進行了計算機模擬調試。 -
So the research on condition monitoring and fault diagnosis for key parts of operation devices is promising and full of potential. based on dynamics and the theory of signal analysis, the paper discusses the structural characteristic and condition monitoring of slew bearing with mechanical measurement and experiment technology according to vibration
但作為港口裝卸的特種設備，港口起重機在這方面的發展較為緩慢，因此對裝卸設備的關鍵零部件進行狀態監測與故障診斷的研究具有廣闊的前景和巨大的潛力。 -
In the field of application of fault diagnosis with mese, using short signal analysis technology can get characteristics vector of faults. then fuzzy reasoning and neural networks are used to construct fault diagnosis system. the fault diagnosis system analyses the characteristic vector by self - learning
在故障診斷領域的應用研究方面，將的簡訊號最大熵譜分析與模糊推理、神經網路技術相結合，採用模糊神經網路對最大熵譜分析得到的特徵向量進行自學習的模糊推理，能夠準備識別故障類型。 -
The thesis devote to desams ( double - channel electro - hydraulic servo adaptive motor simulator - rig ) condition monitoring and accessing in theory and application. based on short signal analysis theory, the thesis explores the representative vibration faults of complex and non - linear equipment by both theoretical and experimental methods systematically
本文基於簡訊號分析技術，針對電液伺服道路模擬試驗臺運行狀態監測和狀態評價，對簡訊號的最大熵譜分析技術在自復雜非線性系統的實時在線故障診斷領域的應用進行了系統的理論和實驗研究。 -
Semg signal is the sum of bioelectrical activities that recorded from the skin of working muscle by surface electrodes. the change in semg signal could reflect motor units activation patters and the status of muscle fatigue in some certain degree. because it was non - invasive and local sensitive, the technique of semg signal analysis had become very important method in examining and evaluating human muscle function
Semg信號是從肌肉表面引導和記錄到的肌肉活動時神經肌肉系統生物電變化的一維時間序列信號，由於其檢測具有非損傷性和良好的局部性以及semg信號的變化在一定的程度上能夠反映運動單位的活動模式和肌肉疲勞的狀態，因此應用semg信號分析技術檢測和評價肌肉疲勞以及進一步探討其生理機制具有重要的理論意義和實用價值。 -
In order to find the detecting signal characteristics of all kinds of flaws for ect and ac - mfl, itestablished the signal analysis method based on rectangular flaw, which was validated throughthe experimental research on ect and the emulational research on ac - mfl for different shapeand dimension flaws. the method was explained that a flaw with an arbitrary shape can berepresented as a set of flaws with the simplest rectangular shape. as the synthetic application of these researches, the problem of defect detection of bolt wasresearched
為實現螺紋區域中的缺陷檢測，提出了提取局部極大值的缺陷識別方法;並根據位置的不同將缺陷分為螺桿結合部缺陷、螺紋區域缺陷以及螺紋尾部缺陷三類，對每類缺陷的信號特點進行了分析，給出了缺陷檢測的判據，並通過實驗驗證了識別方法的可靠性;最後對螺栓頭桿結合部的缺陷檢測進行了實驗研究，並根據信號特點建立了相應的缺陷檢測方法。 -
Aimed to realize the problem of quenched rail qualification forcast through quantitative analysis of quenched rail surface hardness by eddy current, and combined the eddy current theory with the computer image processing and signal analysis, the hardness testing model is established in this paper
針對渦流無損檢測淬火鋼軌踏面硬度的定量分析來實現淬火鋼軌質量保證預報問題，將電渦流理論與現代計算機圖象處理和信號分析相結合，完成硬度測試模型建立。
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