相合變換 的英文怎麼說
中文拼音 [xiānggěbiànhuàn]
相合變換
英文
congruent transformation-
Standard practice for quantitative measurement and reporting of hypoeutectoid carbon and low - alloy steel phase transformations
亞共析碳鋼和低合金鋼相位變換的定量測量和報告的標準規程Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion
文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。And the photorefractive edge - enhancement joint transform correlator can provide higher 1 correlation peak and narrower correl ation width with the presence of electric - fields
應用於光折變邊緣增強聯合變換相關器時，通過外加電場，可使聯合變換相關器的相關識別性能進一步改善。Hybrid photoelectric joint transform correlator
光電混合聯合變換相關器Fingerprint identification using a real - time high efficiency joint transform correlator
實時高效聯合變換相關器作指紋識別Rotation - invariant target detection by using a modified fringe - adjusted circular harmonic joint transform correlator
修正條紋調節的圓諧聯合變換相關器作旋轉不變的目標檢測In the paper, we describe the whole configuration of the joint transform correlator ; introduce the correlative theories of joint fourier transform in detail ; in order to achieve better correlation result, the nonlinear processing of joint transform power spectrum ( jtps ) is put forward, the effect of jtps laplace sharpening and binary processing to the correlation image is given ; the method of the best binary threshold is determined ; we analyse the correlation image, present the way that removes liquid crystal diffraction spot, direct current spot and image noise, and binarize the correlation image finally
本論文主要對提出的聯合變換相關的整體結構進行了描述；詳細介紹了聯合傅里葉變換的相關理論；為了得到更好的相關結果，本文提出對聯合功率譜進行非線性處理的方法，給出了聯合變換功率譜的拉普拉斯銳化和譜的二值化處理對相關峰圖像的影響及二值化最佳閾值的確定方法；對相關峰圖像信息進行了分析；提出了消除液晶衍射光斑、直流光斑和圖像噪聲的方法；最後對相關峰圖像進行了二值化處理。A novel parallel - serial type cttfc ( combined two - transistor forward converter ) with coupled inductor is present in this paper, and the performance of three parallel - serial type cttfcs is studied and compared. the performance of cttfc with coupled inductor is similar to the other two cttfcs while coupling coefficient is less than one and the converter working ccm ( continuous current mode ), and input - to - output voltage gain increase one times while coupling coefficient is one
本文提出了一種耦合電感並?串型雙管正激組合變換器，並對三種並?串型組合變換器的特性作了比較：耦合系數小於1且耦合線圈電流連續時，三種並?串型組合變換器特性相類似：耦合系數為1時，組合變換器輸入輸出電壓增益增大一倍。Three parallel - parallel type cttfcs is studied and compared in this paper. the performance of the cttfc with coupled inductor is similar to that with sharing freewheeling diode while coupling coefficient is one, and similar to that with sharing output capcitor while coupling coefficient is less than one and the converter working ccm
揭示了耦合電感並?並型雙管正激組合變換器與其餘兩種並?並型組合變換器的關系：耦合系數為1時，具有與共用續流管組合變換器相類似的特性；耦合系數小於1且耦合線圈電流連續時，具有與共用輸出濾波容組合變換器相一致的特性。Analysis of ambiguity - function of lfmcw radar, including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal. 3. this dissertation advances new theories of lfmcw radar signal detection and estimation, including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform
包括基於多項相位變換的lfmcw雷達速度和加速度估計方法;基於修正多項相位變換的多目標lfmcw雷達速度和加速度估計方法;基於一般高斯噪聲環境下的lfmcw雷達速度和加速度聯合估計方法;另外提出了基於頻域增采樣內插方法以提高lfmcw雷達測距精度。The proposed jtc greatly reduces the intensity and width of the strong dc component, sharpens the correlation peak, eliminates cross - correlations among each input target, and the conjugate cross - correlation between the reference and input targets at the same time. in order to calculate the discriminant probability of the objects, a simple but self - explainable statistic function was presented to show where the true object and false object occurred in the unknown input image sequence
在此基礎上，論文提出了基於位相編碼振幅調制的畸變不變多目標識別聯合變換相關技術，即通過改變隨機位相模板的調制因子的大小來改善相關輸出的性能，一步消除了共軛相關項、輸入待識別圖像之間的互相關項，並大大降低了零級相關峰的能量和寬度。And the steady - state coupling response time rdecreases from 0. 8s to 0. 3s. but there are almost no changes in 2peak with fields applied. ( 2 ) using the characters of two - beam coupling in sbn : 61 : cr crystals under applied fields, applications in image edge - enhancement and photorefractive edge - enhancement joint transform correlator are investigated
（ 2 ）研究了外加直流電場作用下sbn 61 cr晶體的二波耦合特性在光學圖像邊緣增強以及光折變邊緣增強聯合變換相關器等方面的應用，討論了外電場對光折變邊緣增強及光折變聯合變換相關識別效果的影響。The joint transform correlator ( jtc ) is paid more attention by researchers than the matched filtering correlator ( mfc ) with its advantages, such as high spatial bandwidth product, without integrated filtering and real - time operation etc. photorefractive crystals have some advantages, such as fast response, high spatial resolution and large storage capacity etc. we can exert both advantages by combining the photorefractive crystal with the jtc
與匹配濾波相關器相比，聯合變換相關器具有諸多優點，如空間帶寬積高、無需濾波綜合、易於實時操作等，所以近年來更加引起人們的研究興趣。光折變晶體具有響應速度快、空間解析度高、存儲容量大等優點。將光折變晶體與聯合變換相關器相結合構成光折變聯合變換相關器，就可以充分發揮二者的優勢。In order to break through the choke point of the traditional design of a telephoto lens, how to eliminate aberrance by means of hybrid refraction - diffraction was studied from the view of the phase polynomial of diffractive surface and phase transformation polynomial of general lens
摘要為了突破長焦物鏡傳統設計中的局限性，從衍射面的相位多項式出發，結合一般透鏡的相位變換式，對折衍混合消像差理論進行了探討。( 5 ) we present a photorefractive two - beam coupling jtc, in which a knsbn : cu crystal is used to a square - law converter by the nonlinear energy transfer property of the photorefractive two - beam coupling
（ 5 ）利用knsbn ： cu晶體作為平方律轉換器件，實現實時的功率譜轉換，從而實現聯合變換相關識別。This paper analyzed the modulation and filter technique on joint power spectrum ( jps ), which reduced the intensity and width of the strong dc component existing in the classical joint transform correlator, improved the recognition ability greatly
針對聯合變換相關器，分析了對聯合功率譜的調制和濾波技術，縮小了峰值半寬度、削弱了零級自相關的能量，改善了經典聯合變換相關器識別性能。Firstly, the analysis and comparison is made between two basic types of optical correlator : the vander lugt mfc and the jtc. and the concept of the general optical correlator is proposed
首先比較研究了兩種基本的光學相關識別理論： vanderlugt匹配濾波相關識別和聯合變換相關識別，並提出了一般化光學相關識別的概念。( 2 ) taking the nonlinear energy transfer property of the photorefractive two - beam coupling in the sbn : 61 crystal doped with 1000ppm cr and the knsbn crystal doped with 0. 07wt % ce, edge - enhancement preprocessing can be achieved, which will results in the larger normalized intensity and narrower width of the correlation peaks. and the discrimination of the jtc is greatly improved
（ 2 ）利用sbn ： 61 ： cr晶體（ 1000ppm ）和knsbn ： ce晶體（ 0 . 07wt ）的二波耦合能量非線性轉移特性，對聯合變換相關器的輸入圖像進行邊緣增強預處理，提高了相關峰的歸一化強度，減小了相關峰的半寬度，從而大大提高了相關器的識別能力。To give a general method on how to find the similitude transformation matrix - matrix synthetic division
摘要給出了求相似變換矩陣的一種一般方法矩陣的綜合除法。Weintroduced them into song correlation, presenting pof based on song decomposi - tion ( pbs ) and song decomposition based fringe - adjusted joint transform corre - lation ( sbfjtc ), and their optoelectronic hybrid implementation setups. in pbs andsbfjtc, the sub - linear correlations in the definition of song correlation are sub - stituted by pof and fringe - adjusted joint transform correlation respectively. simula - tion results show that introduced pof and faf perfectly smooth away the extraneous
我們把這兩種方法應用到song相關器中，提出了基於song分解的純位相濾波器（ pofbasedonsongdecomposition ，簡稱pbs ）和條紋調節聯合變換相關器（ songdecompositionbasedfringe - adjustedjointtransformcorrelation ，簡稱sbfjtc ） ，以及它們的光電混合制備系統。分享友人