optical transform 中文意思是什麼
optical transform
解釋
光學變換-
In the present dissertation, friction - induced noises emitted by a flat specimen rubbing against another flat specimen or a ball specimen under reciprocating sliding are studied. the detailed observation of the scars is conducted by means of a scanning electrical microscope ( sem ), laser scanning microscope ( lsm ), optical microscope and profilometer. the dynamic state variables are analyzed in detail using the discrete wavelet transform
使用電子掃描顯微鏡（ sem ） 、激光掃描顯微鏡（ lsm ） 、光學顯微鏡和表面輪廓測量儀等設備對摩擦噪聲發生的區域進行了詳細的觀察和分析，運用小波變換技術對摩擦噪聲狀態下的動力學變量進行了深層次的研究，應用matlab simulink語言對摩擦系統進行了振動動力學模擬，系統地研究了摩擦噪聲的形成機理。 -
Either the boron nitride ( bn ) thin films with different cubic phase content were deposited on n - type si ( 111 ) and fused silica substrates by radio frequency ( rf ) sputtering using two - stage deposition process. the films were characterized by fourier transform infrared ( ftir ) spectroscopy. the transmittance te ( ) and reflectance re ( ) were obtained as a function of incident photo wavelengths and the thickness of films was measured by alpha - step. the absorption coefficient was calculated from te ( ) and re ( ). the optical band gap ( eg ) of the films was determined by effective medium form of formula containing eg
本文還研究了立方相含量與光學帶隙的關系，在n型si （ 111 ）片和熔融石英片上沉積出不同體積分數的立方氮化硼薄膜，薄膜的成分由傅立葉紅外吸收譜標識；用紫外-可見分光光度計測量了沉積在石英片上的bn薄膜的透射光譜te （ ）和反射光譜re （ ） ，薄膜的厚度用臺階儀測得。 -
The double - optical path measurements of fourier transform infrared spectrometer
傅立葉變換型紅外光譜儀中的雙光路技術 -
Various factors affecting the refractive index and the deposition rate of the deposited films are studied to optimize growth conditions of the films. the microstructures and optical properties of the films are characterized by a prism coupler, a fourier transform infrared spectroscopy ( ftir ) and an atom force microscopy ( afm )
研究了薄膜折射率和淀積速率與工藝參數之間的關系，通過棱鏡耦合儀、傅立葉變換紅外光譜、原子力顯微鏡、掃描電子顯微鏡等測試手段，分析了薄膜的結構和光學特性。 -
The actively mode - locked erbium doped fiber laser is very attractive among those potential sources which can generate broadband tunable near transform - limited pulse with high repetition rate and has been used as the ideal optical transmitter and all optical clock source in the future long - distance communication systems
對于高速光纖通信系統而言，能輸出高重復頻率的、近極限超短脈沖的主動鎖模光纖激光器被認為是未來遠程無中繼光纖通信系統的理想光源。但其難點是工作穩定性問題。 -
The new algorithm starts from an initial estimate which is based on the hough transform, and a rectangular window is centered using the current line approximation, and a new line estimation is generated by making a total least squares fit through the pixels contained within the window. this is repeated until convergence is reached. lastly, we have suggested a new technique which may recover the motion and structure parameters of a moving object by using of 21 optical flow lines based on the optical flow fields of the feature line this thesis is the project supported by aeronautical foundation science ( no. 99f53065 ) and research center of measuring and testing technologies, and control engineering in nanchang institute of aeronautical technology ( no. 2001 - 15 )
演算法的思路是：首先，在小區域內運用霍夫變換確定直線的初始值；其次，以直線的初始值所對應的直線為中心線，建立一個矩形框；最後，利用矩形框內所包含的邊緣點數據不斷地迭代直至收斂，從而達到進一步修正直線的坐標參數；本文基於特徵直線的光流場，即線流場，建立了一種利用21條光流線確定空間三維物體旋轉運動參數、平移運動參數以及對應的空間直線坐標的線性演算法。 -
Plasma characteristics of a rf ion source are investigated by emission spectroscopy. the spatiotemporal spectral line intensities of the first three atomic lines in hydrogen bahner series ( = 656. 28, 486. 13, 434. 05nm ) of rf ion source plasma, are measured with calibrated optical multichannel analyzer ( oma ). some plasma parameters, including electron temperature, hydrogen atom density and hydrogen ion density, are calculated and analyzed using partial local thermodynamic equilibrium ( plte ) theory and abel transform
實驗採用絕對定標后的光學多道分析系統（ oma ）測定了離子源等離子體不同時間和空間位置的氫原子巴耳末譜線系中前三條譜線（ = 656 . 28 ， 486 . 13 ， 434 . 05nm ）的強度，並採用plte的理論和abel變換方法，計算出了高頻離子源等離子體的電子溫度、氫原子濃度、氫離子濃度等參數在放電的不同階段和徑向分佈情況，並進行了簡要分析。 -
Based on the theoretical expression of the average intensity in the fourier transforming and imaging optical system with variable aperture, an algorithm is developed to change the intensity data versus the aperture radius into the bessel - fourier - transform - and - the - inversion of a function of the height - height correlation function. three samples of gaussian correlation are used for the experimental demonstration
在理論分析和實驗測量中，我們採用了變孔徑的傅立葉變換和成像系統，由所得到的像面光強的解析式，建立了將平均光強隨孔徑的數值變化關系轉化為正逆傅立葉變換對，從而恢復出表面的高度?高度相關函數。 -
From the point of spatial frequency domain the paper applies the spatial frequency transformation to analyze the awg transmission characteristics and probes into the function of fourier transform, the characteristics of coherent system and its application in optical information process domain
論文應用傅立葉光學的空間頻域變換，從空間頻域的角度分析了awg的傳輸特性，探討了awg的傅立葉變換功能及其相干系統特性，以及它在光信息處理領域中的應用。 -
Awg possesses an essential function of coherence system - " composing frequency and generating image ". therefore as far as spatial frequency field is concerned, awg is an optical integration of coherent system : two slab waveguides similar to two fourier lenses of one dimension and twice fourier transform of optical signals are realized. here the arrayed waveguide region is frequency spectrum region
Awg具有相干系統的「分頻成譜、合頻成像」這一本質功能，因此若從空間頻域的角度來看， awg就是一個相干系統的光學集成：兩個平板波導類似兩個一維傅里葉透鏡，實現光信號的兩次傅里葉變換；而陣列波導區即為頻譜區。 -
Polarizers, one of the most important optical modulators, are widely used in modem laser action technique, optical information processing, image - forming system, etc. the function of polarizers is to transform non - polarized light into polarized one, which is the preparation for further modulation
光學調制器件中的重要器件?偏光器，在激光應用技術、光信息處理，以及成像系統中有著廣泛的應用。偏光器件的作用是將非線偏振光變為線偏振光，為光信息的進一步調製做準備。 -
The usual way to solve this problem is to transform the original signal into " 0 ", " 1 " equally - distributing circuitry code type which is fit for the optical channel, and then transmit
解決該問題常用的方法是通過通道編碼將原始信號變換為「 0 」和「 1 」均勻分佈的適合光線通道傳輸的線路碼型，再送入光路進行傳輸。 -
A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted
Thz （ 10 ~ （ 12 ） hz ）時域光譜技術是20世紀90年代發展起來的一種新型的光譜測量技術，它使用頻率介於遠紅外和微波之間的相干電磁輻射脈沖作為探測源，利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形，通過傅立葉變換得到測量信號振幅和相位的光譜分佈，進而獲得材料在thz波段的復介電常數，即色散及吸收等信息。 -
Fourier transform computer - generated holography and optical reconstruction
傅里葉計算全息術及光學再現 -
Realization of optical wavelet transform with 4 ? optical processing system and loading filters with computer programming, the sensor has the advantages of optical information processing 2 - d, high - speed, parallel, large volume and flexible computer control
該傳感器用4 ?光學處理系統實現光學小波變換濾波，以計算機編程加載濾波器，因此兼有光學信息處理的二維、高速、并行和大容量的優點，以及計算機控制靈活的優點。 -
With development of high - speed missile imaging detection aero - optical effects, certain accomplishments on theoretical analysis have been obtained. the laboratory test system needs to be built to vertify the correctness and validity of theory. at the same time, to study the transient influence of high - speed flow on image transmission, an aero - optical effect experiment of wind tunnel is needed furtherly on the foundation of the transform of wind tunnel, in order to use the researching accomplishment of aero - optical effects in the aero - optical distortion image adjustment evaluation
隨著高速導彈成像探測氣動光學效應機理研究工作的深入開展，在理論分析上取得了一定的成果，需要搭建實驗室試驗系統來驗證理論的正確性和有效性，同時為了較真實地研究高速流場對圖像傳輸的瞬態影響效應，需要在風洞改造的基礎上進一步進行氣動光學效應風洞試驗，期望將獲得的氣動光學效應研究工作成果用於氣動光學畸變圖像校正效果的評估。 -
However, the correlation signal obtained by the classical joint transform correlator ( jtc ) is associated with large correlation sidelobes, large correlation bandwidth, and low optical efficiency
但經典的聯合變換相關存在大的相關旁瓣、很大的相關帶寬和低的光效率等。 -
The fundamental theory for digital lensless fourier transform holography and its applications in 3 - d object reconstruction and optical metrology are presented in this dissertation. ( 1 ) analytical foundation for numerical reconstruction of digital lensless fourier transform holography, namely discrete fourier transform theory, is presented. the basic principle and mathematical model for recording and numerical reconstruction of digital lensless fourier transform hologram is elaborated
主要內容包括： （ 1 ）討論了數字無透鏡傅里葉變換全息術數值重建的數學基礎? ?離散傅里葉變換的基本理論，分析了數字無透鏡傅里葉變換全息圖記錄與再現的基本原理，建立了數字無透鏡傅里葉變換全息圖記錄與再現的數學模型。 -
As analyzing the optical spatial filter and frequency domain filter with wavelet transform, the space variable processing > matched filtering and imagery system are the examples. all of these confirm the feasibility of wavelet transform applied in optical information processing
用小波變換處理光學信息，主要的是應用小波的多分辨特性，小波變換的定義是一相關運算，很容易在光學系統中實現，這是光學小波變換的理論依據。 -
Optical image encryption using anamorphic fractional fourier transform
採用變形分數傅立葉變換的光學圖像加密
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