空間頻率域 的英文怎麼說

中文拼音 [kōngjiānbīnlǜyù]
空間頻率域 英文
spatial frequency domain
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 空間 : space; enclosure; room; blank; interspace
  • 頻率 : frequency; rate
  1. ( 5 ) method of bandwidth compression of holographic grating based on discrete spectrum and realization of a 1 / 8 bandwidth compression of holographic grating ( 6 ) holographic stereogram display that can be implemented using cgh and imaging process through capturing sequence parallax images based on result of computed basis fringe

    採用空間頻率域的子采樣，計算了一個8倍的條紋函數壓縮編碼結果，並給出了簡單易行的解碼方式。 6 、利用獲得的基本條紋函數合成了一個基於序列視差圖像的立體圖顯示，實現了三維數據未知的物體的三維全息顯示。
  2. At first some modification is made in conventional beam forming of frequency domain, namely to estimate doa by arrays outputs on compensated spacial frequency points of echoes. then the cwt is utilized to signal processing in space - frequency domain for estimation of doa, and the corresponding modification is also made. in the dissertation, the computer simulations of doa estimation for both narrow - band and wide - band echoes are given, so do the necessary comparison among several methods and crb

    首先在傳統的頻域波束形成演算法的基礎上，提出對寬帶信號的頻率補償，也即對寬帶回波信號的各空間頻率根據時間頻率的差異進行相應補償，然後對各陣元輸出求和來得到方位估計；其次將連續小波變換引入到空間?頻率處理中，從而完成對目標方位的估計，並進行了相應地補償。
  3. Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results

    基於空間一頻率域中交叉譜密度函數的傳輸理論，研究了多色矢量gsm光束通過abcd光學系統傳輸時偏振特性的變化規律，首次推出了矢量高斯一謝爾模刑fgsm ）光束通過近軸abcd光學系統交叉譜密度矩陣的傳輸公式，並對矢量gsm光束傳輸中偏振的變化、譜寬的影響和強度的分佈等進行了統一研究。
  4. Though there are many methods in the field of speckle filtering, it lacks deep study of methods selection with different images and in different atr missions

    本文對採用空間域常用的濾波演算法、時間頻率域相結合的濾波演算法濾除sar圖像噪聲的結果進行了比較。
  5. In section 4, by making use of the fourier transformation for spatial variables and starting from the nonparaxial propagating equation of ultrashort pulsed beam in temporal frequency domain, the nonparaxial solution basing on the paraxial propagating solution was derived, which come to exact solution by iterative of the paraxial integral solution

    在第四節里，通過採用空間變量的傅立葉變換和利用時間頻率域下的非傍軸傳輸方程，我們得出了超短脈沖光束傳輸的非傍軸的修正方法。
  6. Being local in space and frequency, and some even compactly supported, wavelets are used to simplify the wave equations in slowly varying nonhomogeneous medium, and transfer the problem of solving two - dimension wave equations into a series of one - dimension problems, after words, the method in 1 can be applied to solve it. as a result, the complexity of the problem and the difficulty in solving it are largely reduced

    利用小波變換在空間域和頻率域上具有局部性的特點，通過小波展開，把二維非均勻問題轉化為一系列一維非均勻問題，然後利用在（一）中得到的通用計算公式求解，大大降低了問題的復雜性和難度。
  7. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。
  8. In 3 - d ocdma system, the code sequence for each user is spreaded in time chip, wavelength and space. compared with 2 - d ocdma system, 3 - d system can accommodate more total users and simultaneous users

    三維ocdma系統中，每個用戶碼字序列的光脈沖同時在時間域、頻率域和空間域擴展，三維系統較之二維系統擁有更大的總用戶和同時激活用戶的容納能力，系統性能更好。
  9. The message to be transferred can be image or text file, and can be hided in the space domain or frequency domain of the image

    這些要傳輸的秘密信息可以是文字信息也可以是圖象信息，隱藏的位置可以是圖象的空間域或頻率域內。
  10. Like other transforms such as dct and wt, zh - transform can transform the image data from spatial domain to another frequency - like domain, and zh - transformed data can describe the shape from coarser to finer

    類似於dct和wt等變換， zh變換可以把圖像數據從空間域變換到另一個類似於頻率域的域，使變換后的數據從粗到精地描述了視頻對象地形狀。
  11. By simulating mathematically on frequency and on space, we can find the average speed of space field and the average speed of frequency field that is weighted by amplitude, and analyse their relation, and analyse the meaning of space speed variance x and frequency speed variance v. in the fourth part, how to ensure the height of cloud is introduced, and basing on the theory of wind field continuity, the height updating quality controlling is introduced. in the fifth part, the system of cloud wind is introduced, we tracked cloud - motion of consecutive satellite images with one - minute interval by the 1 - d fourier analysis technique and the two - dim fourier analysis technique and the fft analysis technique, and dispose them with quality controlling. in the sixth part, we summarized our research and put up with shortages of this article

    模擬模塊內各點的速度線性變化時，得到空間域平均速度以及頻率域以振幅為權重的平均速度，分析了空間域平均速度和頻率域以振幅為權重的平均速度的關系，並揭示空間域的平均速度的標準差_ x和頻率域的振幅為權重的平均速度的標準差_ v的意義，以及它們之間的關系；第四章介紹了雲跡風系統的高度指定以及風矢高度的劃分，並根據風場連續性原理，介紹了高度調整法的質量控制；第五章介紹導風系統的流程，選擇了三個時刻的ir雲圖，分別用一維傅立葉相位法、二維傅立葉相位法和快速傅立葉演算法計算一個風場個例，並對所得風場進行質量控制，並給出風場圖；第六章進行研究總結，指出不足和有待于進一步研究之處。
  12. Synthetic aperture radiometer applies the interferometric principle to sample in the spatial frequency domain and retrieves the image by fourier or other numerical transformation

    綜合孔徑輻射計利用孔徑綜合原理在空間頻率域中采樣，通過傅立葉變換或其他數學變換獲取反演亮溫圖像。
  13. Euler ' s equation in wavenumber domain has been derived based on its spatial expression and tested by gravity and magnetic anomalies of sphere model respectively

    摘要基於空間域中的歐拉方程，推導出頻率域中的歐拉方程。
  14. Increasing image is mainly introduced into two aspects which are space domain and time domain

    其中，圖像增強主要是從空間域和頻率域兩個方面進行了闡述。
  15. Experiments show that the frequency method as gabor wavelets is better than the method which extract texture feature in space

    實驗表明在頻率域提取紋理特徵gabor小波的方法優于在空間域利用共生矩陣提取紋理特徵的方法。
  16. The paper first presents the configuration, the principle, the applications, new development in the wdm system and the solutions to relevant problems of awg then the paper introduces the theory basis of spatial frequency analysis of awg : fundamental fourier optics

    論文首先介紹了awg的結構原理，在wdm系統中的應用、新發展及其相應問題的解決措施。然後介紹了awg的空間頻率域分析方法的理論基礎：傅里葉光學的基本理論。
  17. The basic concepts of second - order coherence theory in describing wavefields are introduced. these concepts are the cross - spectral density function and spectral degree of coherence in the space - frequency domain, and the mutual coherence function and the complex degree of coherence in the space - time domain

    介紹了二階相關理論中描述光場相干性質的基本概念，包括空間-時間域中的互相關函數、復相干度和空間-頻率域中的交叉譜密度函數、光譜相干度。
  18. Computer simulation results show that the beamspace wsf algorithm retains the super performance of its element space counterpart when applied to the beam outputs of some practical acoustic - receiving array. 3. an improved form of classical time domain broadband beamforming is proposed by combining digital delay lines and fir filters

    提出了對經典時域寬帶波束形成器的改進方法，採用數字延遲線和fir數字濾波器結合的方式實現時域波束形成，以消除波束畸變並實時實現結構特殊的空間頻率響應。
  19. Using the feature : there exists distinct edge contour between the characters and the background in color image, we give a color image text extraction algorithm - tea ( text extraction algorithm ), which makes the use of cedo to process edge detection of color image, then, adopts morphologic dilation technology to form region image, and combines the area - growth algorithm to mark the candidate text blocks, finally, determinates the correct text block by analyzing the density of text block and the space frequency feature

    利用彩色圖像文本區域與背景之間存在明顯邊緣輪廓的特點，本文給出了彩色圖像文本提取演算法? tea （ textextractionalgorithm ） 。該演算法首先利用cedo進行彩色圖像邊緣檢測，然後採用形態學膨脹技術生成區域圖像，並結合區域生長演算法標記候選文本塊，最後通過分析文本塊密度和空間頻率特性來判定真正的文本塊，從而較好地完成了彩色圖像的文本提取。
  20. Spatial frequency domain

    空間頻率域
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