time domain processing 中文意思是什麼

time domain processing 解釋
時間域處理
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • domain : n 1 領土，版圖；領地。2 管區，勢力圈；（特定動物等的）生長圈；（學問、活動等的）領域，范圍；【物...
  1. 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。
  2. This paper describes briefly the gist of the data - processing and interpretation system for time domain " mise - a - la masse " method and deals in detail with its field application in two metallic ore districts within sichuan province

    摘要簡要介紹時間域充電法資料處理及解釋系統的基本內容，並詳細介紹了在四川省境內的2個金屬礦區的野外應用結果。
  3. Abstract : this paper describes briefly the gist of the data - processing and interpretation system for time domain “ mise - a - la masse ” method and deals in detail with its field application in two metallic ore districts within sichuan province

    文摘:簡要介紹時間域充電法資料處理及解釋系統的基本內容，並詳細介紹了在四川省境內的2個金屬礦區的野外應用結果。
  4. Time - domain measurements and processing of ultra - wideband scattering signal

    超寬帶散射信號的時域測量及處理
  5. For slow targets whose doppler frequencies fall into clutter doppler band, the performance of frequency domain one - dimension filtering is seriously degraded. in an airborne radar, there is interdependence between the clutter doppler frequency and spatial position. space - time adaptive processing ( stap ) utilizes this interdependence to suppress clutter and get perfect main - lobe and side - lobe clutter suppression

    空時自適應處理利用機載雷達地雜波多普勒頻率與地雜波空間位置的耦合性，根據目標和雜波在空間-多普勒頻域二維空間分佈上的差別對雜波進行抑制。
  6. The data processing system further includes a convoluted inverse transforming means for inversely transforming the discrete function in a second - variable - domain back to the time domain at a second sampling frequency for converting t he input data to a set corresponding data sampled at the second sampling frequency

    此資料處理系統也包含一個旋積的逆轉換裝置，用來對以第二個變數為定義領域的離散函數，逆轉換回以第二個取樣頻率為頻率及以時間為定義領域的函數，也就是將資料轉換成以第二個取樣頻率所取樣的資料。
  7. 5, using the method of virtual value. kurtosis, time domain averaging and so on to pick up equipment fault information, and processing data by the method of svm theory

    5 、利用有效值、峭度、時域平均分析等方法提取設備故障信息，並利用支持向量機（ svm ）理論進行機器學習演算法研究。
  8. Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain

    通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。
  9. We first introduce the basic methods of speech processing in time domain. emphatically, we describe linear prediction and tonality detection of speech signal. moreover, we discuss the g. 726 speech waveform coding standard in details

    本文首先介紹了語音波形時域分析處理的基本方法，對語音波形線性預測和音調檢測技術作了重點描述，著重研究了g . 726語音波形編碼演算法，並在此基礎上，對該演算法進行了某些探討改進，並用vc + +編程，在pc機平臺上予以實現。
  10. With the progress of digital signal processing technique, pulse compression processing system are developed from analogue or digital - analogue system to all digital ones. digital pulse compression processing can be divided into pulse compression processing in time domain and pulse compression processing in frequency domain

    隨著數字信號處理技術的進步，脈壓處理系統也從模擬式、數模結合式發展到全數字式，數字式脈壓處理又分為時域脈壓處理和頻域脈壓處理。
  11. Kalman filtering just can fetch up the default, which can give the optimum estimation of signal under the condition of the minimum mean - square. and this method works in the time domain, the processing speed is fast, which make it be used in the real time signal processing

    當信號含有噪聲時， kalman濾波可以在最小均方誤差條件下給出信號的最佳估計，而且是在時域中採用第推方式進行，因此速度快，便於實時處理。
  12. Having capacities of processing signal in frequency or time domain is one of very important characteristics of fiber, the optical fiber delay lines is a typical model

    光纖有一個很重要的應用即能進行頻域和時域的信號處理，其中最典型的應用是將光纖作為延遲線。
  13. The signals are transformed into digital signals and sent to a computer. digital signal processing includes amplifying the sound signals, low - pass filtering, wavelet transform for de - noise and analyzing power spectra using matlab software. for different species of pests the acoustic characteristics are different in time domain and frequency domain

    害蟲聲信號採集系統由日本產teac ；四通道錄音機（數字記錄儀）記錄害蟲爬行聲信號，數字示波器將聲信號轉變為數字信號送計算機存儲，由matlab軟體對數據文件進行信號處理，包括信號的再現、放大、濾波、小波去噪、功率譜分析等工作。
  14. Space - time processing technique combines time domain signal processing and spatial signal processing. it can utilize fully the space - time channel characteristic, repair limits of the time domain signal processing and spatial signal processing, and enhance the system capability, overlay area and transmission rate

    空時處理技術聯合時域和空域信號處理技術，充分利用無線通道的空時結構特徵，彌補了時域信號處理和空域信號處理二者的局限，能夠提高無線通信系統的容量、覆蓋范圍和傳輸速率。
  15. Mechanical vibration and shock - signal processing - time domain windows for fourier transform analysis

    機械振動和沖擊.信號處理.傅里葉變換分析用時域窗
  16. This dissertation employed a step - by - step azimuth processing way which can make full use of the storage trait of the echoed data, to implement range curve compensation directly in the time domain, without

    在距離壓縮之後，每次取一個陣長的數據子矩陣進行距離彎曲校正和方位向壓縮，這樣逐個孔徑地依次完成成像處理，得到目標的sar圖像。
  17. Due to the unsteadiness of the vibration signal, conventional methods of gear fault diagnosis based on steady signal processing, which consist of time domain and frequency domain analysis method, are not as effective to local defect as to dispersed defect of gear

    傳統的齒輪故障診斷方法（包括頻域分析方法和時域分析方法）對于齒輪的分佈故障有很好的診斷效果。但當齒輪產生局部故障時，失效的輪齒間斷地進入嚙合，產生沖擊振動，使得齒輪振動信號包含了非平穩或時變成分。
  18. The signal character of missile - borne strip sar makes in favor of correcting the linearity range walk in time domain. based on the character this paper discusses the theory and processing flow of the linearity range - doppler algorithm, and make simulation to analyzing it

    彈載條帶式sar的信號特點使得有利於直接在時域對回波信號的線性距離走動項進行校正，針對這一特點本文討論了線性range - doppler演算法的原理及流程，並對此演算法進行了模擬分析。
  19. Beginning with the equivalence principal, two types of near - field to far - field ( nfff ) transformation s are discussed systematically, i. e. frequency - domain nfff ( fd - nfff ) and time - domain nfff ( td - nfff ). in td - nfff transformation, the concurrent - processing approach is used, where the contributions to far - field from the tangential electric current and magnetic current on the equivalence surface are calculated " on - the - fly " in step with the fdtd simulation. as a result, it is not necessary to store the tangential current components for every equivalence surface at every time step, and therefore reduce considerably computer storage required for the td - nfff transformation

    在理論部分，本文從電磁場的等效原理出發，系統、詳盡地論述了頻域和時域近遠場變換的基本思想，在時域近遠場變換中採用實時的變換方法，即每進行一個時間步的迭代，就計算一次等效面上該時間步的切向電流和切向磁流對遠場各方向的貢獻，這樣就使時域近遠場變換不需要儲存等效面上每一個時間步的切向電流和切向磁流，大大減小由於近遠場變換而增加的計算機內存需要量。
  20. Wavelet analysis is a newly developed theory, which overcomes the disadvantages of traditional fourier analysis. it has good localized features in both the time domain and the frequency domain and has important application value in the fields of signal processing, image processing, speech analysis and so on

    小波分析是一門新興理論，它克服了傳統fourier分析的不足，在時域和頻域都具有良好的局部化特性，在信號處理、圖像處理、語音分析等領域有重要的應用價值。
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