點光柵法 的英文怎麼說
中文拼音 [diǎnguāngzhàfǎ]
點光柵法
英文
polka-dot method-
The algorithm has many advantages, such as simple discriminative rule, minimum error, incremental operation, etc
將中點演算法運用於三次樣條曲線的光柵顯示,實現了誤差最小及迭代增量計算的要求。With the widely use of raster display, pixel - level algorithm becomes a research hotspot of basic algorithms of computer graphics now
隨著光柵顯示器的廣泛使用,逐點演算法成為當前圖形學基礎演算法中的一個研究熱點。With the widely use of raster display, pixel - level algorithm becomes a research hotspot of fundamental algorithms of computer graphics now
隨著光柵顯示器的廣泛使用,逐點演算法已成為目前圖形學基礎演算法中的一個研究熱點。In the part of software design, the initialization of ethernet controller and the process in which ethernet packets are received and sent are studied thoroughly. after analyzing the embedded tcp / ip protocols, the interface card software which can control the whole card, receive and send ethernet packets is completed. lastly, the concept of windows network application based on winsock is presented
在介面卡軟體設計中,重點研究了以太網控制器的初始化和以太網數據包的收發過程,詳細分析了嵌入式tcp / ip協議的實現方法,並編寫了光柵傳感器介面卡軟體,完成了介面卡的整體控制和網路數據的收發。The main parts are as follows : 1 ) at the base of the fabrication methods, the photosensitivity of optical fiber and the uv laser sources are introduced simply, the diffraction characteristics of phase mask are analyzed to get the distribution of refractive index in fiber grating, referent the paper [ 4 ] ( delivered )
全文概括如下: 1 )從常用的製作方法出發,簡單介紹了光纖光敏性和成柵光源,重點分析掩模板的衍射場,從而獲得理想情況下光纖光柵的折射率分佈函數,參考已投論文[ 4 ] 。2 ) the coupled - mode equation analyzing the characteristics of fiber grating is deduced step by step. two methods - the transfer matrix metod and the runge - kuttar method are compared, which are often used to solve the coupled - mode equation
2 )詳細推導用於分析光纖光柵特性的耦合模方程,重點對兩種解耦合模方程的方法進行比較:龍格-庫塔法和傳輸矩陣法。The author first summarizes the basic principle of the fiber laser and several methods to generate ultra - short pulses in the fiber laser, then discusses the q - switched fiber laser and mode - locked fiber laser theoretically and experimentally in detail, meanwhile introduces the research on ultra - short pulses semiconductor laser with a fiber grating external cavity
本文綜述了光纖激光器的基本原理和幾種在光纖激光器中產生短脈沖的方法,重點在理論和實驗兩方面研究了光纖調q激光器和鎖模光纖激光器。同時對光纖光柵外腔半導體短脈沖激光器的特性進行了實驗研究。The hybrid method can simulate accurately both the imaging and polarization - dependent diffraction characteristics of a concave grating. to meet the growing need for flattened passband in a practical wdmsystem, three design methods, namely, the tapered output waveguide structure with air - slots, the three - focal - point method and the analytical method of spatial phase modulation, are introduced to achieve a passband - flattened diffraction grating device
針對實際光通信應用中對通帶帶寬的需求,本文提出了「結合空氣槽的漸變輸出波導結構方法」 、 「三焦點方法」及「顯式公式空間相位調製法」三種使平面集成型衍射光柵波分復用器件獲得平頂型頻譜響應的優化設計方法。Compare the results of the couple - mode theory, muti - films theory and the transfer matrix method, improve calculation of the delay and dispersion spectrum, 2
比較分析了光纖光柵主流演算法的優缺點和各自的應用特點,並對時延、色散譜的計算方法進行改進。In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given
從光路、光學元件的自行設計到理論分析計算,初步建立了一臺實驗系統;採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量,並模擬了相關參數對展寬比的影響,對實驗具有指導意義;評價了再生放大器和多通放大器的優缺點,對放大過程中通常忽略的放大自發輻射現象( ase )進行了分析,並提出了相應的解決方法;針對放大過程中出現的增益窄化和增益飽和現象,對輸入種子脈沖提出了一種新的分段頻率調制函數,實現了對增益窄化效應和增益飽和效應的共同抑制;提出了系統的材料(包括放大介質和光路中的普通介質)正是融合高階色散的來源。Base on the analysis of the grating linear displacement measurement theory, the measure errors especially the subdivision error of the grating scale, this paper focuses on the theory of switch and merge of dual grating scales ’ signals, builds the design criteria of high speed high precision displacement measurement by using dual grating sales, designs the switch picking reference with high precision and fast switch and merge method, analyses the errors brought in by switch and merge of the duals grating scales
在分析光柵線性位移測量原理、光柵尺的測量誤差尤其是細分誤差的基礎上,本文重點研究雙光柵尺切換與合成的原理,建立了基於雙光柵尺高速高精度位移測量的設計準則,根據設計準則設計了切換基準拾取方法以及快速切換與合成方法,分析了雙光柵計數值切換合成的誤差。In this paper, measurement principle and development state of optical grating technology are briefly introduced. the advantages and disadvantages of several classical moire fringe division methods are analyzed and compared with each other
本文簡要介紹了光柵檢測裝置在國內外的發展動態及光柵測長的基本原理,對比分析了一些傳統的莫爾條紋細分方法的優、缺點及適用范圍。In the first place, start with theoretic model of distributed fbg strain - sensing network, sensing principle of fiber bragg grating is analyzed and sensing model created. on the basis of analyzing advantages and disadvantages of several familiar multiplexing and demodulation techniques, a mixture multiplexing method that combines optical frequency domain reflectometry ( ofdr ) and wavelength division multiplexing ( wdm ) is proposed to address fbg sensing array. at the same time, tunable narrow - band light source, which is composed of wide - band light source and tunable optical filter, is adopted to demodulate multiplex signals
首先,論文從分散式光纖光柵應變傳感網路的理論模型入手,分析了光纖布拉格光柵的傳感機理,建立光纖光柵應變傳感模型;在分析比較了常見幾種復用技術和信號解調技術的優缺點基礎上,提出應用光頻域反射復用技術和波分復用技術相結合的混合復用方法來解決光纖光柵應變傳感網路的尋址問題,採用由寬帶光源和可調諧光濾波器組成的可調諧窄帶光源來解調復用信號,通過理論分析和實驗研究證實了系統方案的可行性。According to the problem that grating scale hardly achieves high resolution when in high speed and the characteristic of high speed high precision system, this paper presents a cross dimension displacement measuring method based on dual grating scales dual measuring, the counting values of dual grating scales switch and merge
針對高速高精度定位系統的運動特性及光柵尺測量高速位移時難以實現高分辨力的問題,本文提出了適合高速且實現系統末端點高分辨力位移測量的新方法基於雙光柵尺雙重計數、切換與合成的跨尺度位移測量方法。The complex situation of flight requests that the graphics display of cockpit must be dynamic, real - time and legible. but in the raster graphic display system, scale lines and character will be distorted seriously owe to the limited screen resolution in the case of deflection, which affect the display quality. the thesis based on the research of the last graduate student improves the graphics creating arithmetic more and puts forward more effective arithmetic on scale lines and character for high display quality
由於飛行狀態復雜,要求座艙內畫面顯示動態、實時、清晰。而硬體系統採用的是光柵圖形顯示,字元和刻度線的旋轉受屏幕解析度的限制存在著鋸齒走樣現象,影響顯示效果。本文在上一屆研究生研究的基礎上,在圖形生成演算法上加以進一步改進,重點在刻度線、字元的反走樣處理上,研究出了更合理的演算法,提高了圖形顯示質量。Dispersion compensation can be used to obtain the outstanding improvement of the system performance. the dispersion compensators made by fiber gratings are low loss, compact, polarization insensitive, and relatively simple and feasible to fabricate
光纖光柵類型的色散補償器件以其諸多優點成為目前光通信系統中應用最廣泛的色散補償方法。This paper proposes a new algorithm for curvature calculation at discrete points, considering both total revolving and partial twisting of the fbg sensors in order to enhance the curve - fitting accuracy
該文提出了一種在光纖光柵傳感器基材整體旋轉或扭轉情況下得到離散點曲率的演算法,從而提高重建精度。An auto - detecting method of the gauge with pointer that is based on digital image processing technique, high precision grating technique and step motor control technique is presented. there are advantages of high precision, high efficiency and auto - detecting for apply digital image processing technique to detect precision of the gauge with pointer ; moreover, it ’ s helpful to improve system ’ s resolution when high precision grating technique is applied to measure micro displacement ; also it makes system more automatic to control step motor in computer via step motor control card
本文研究的指針式儀表的自動檢定方法是基於數字圖像處理技術、精密光柵測量技術以及步進電機控制技術的,將數字圖像處理技術用於指針式儀表的檢定,具有精度高、效率高、易於實現自動測量等優點;另外,將精密光柵測量技術用來測微位移,有利於提高系統的解析度;還有,通過步進電機控制卡來實現在計算機上對步進電機的控制,提高了系統的自動化程度。Chapter three studies the current package technology of fbg and the virtue / defect, applying case of them
本文的第三章研究了光纖布拉格光柵傳感器的常用封裝方法和它們各自的優缺點與適用場合。In this article, a new unwrapping method is presented, which can get the real phase of the image and overcome the influence of the noises. 4. after the measurement system solves the difference of phase through ftp and makes the data multiply with the calibration matrix, the real height of the object surface can be got
因此本文對ftp法的解相問題做了改進,提出了一種逐點增長解相方法,可以快速得到變形光柵相對參考光柵的實際相位差,有效地消除相位圖象中噪聲的影響,並用實驗對所提出的解相方法進行了驗證。分享友人