mask field 中文意思是什麼
mask field
解釋
屏蔽欄位-
Kicked in the head at reading, removed from the field under an oxygen mask, required to undergo surgery on his skull, shaved and scarred, with serious doubts raised about the likelihood that he would ever play again, cech nevertheless defeated medical expectation to return to the side within months and play, uncannily, as if rejuvenated by the experience
同雷丁的比賽中被踢中頭部，帶著氧氣罩從球場被移走，要在他的頭骨上進行手術，開了刀並留下了疤痕，讓人十分懷疑他能否再進行比賽了，然而並沒有像醫學估計的那樣，切赫在幾個月內就重返賽場了，似乎這次的經歷反而讓他更有活力了。 -
In chapter 4, we discuss the method of vos abstraction based on temporal segmentation in detail. first we put forward affine modal, which is a kind of 3 - d motion modal of rigid body, compensate global motion vector based on this modal, and get the changed detection mask ( cdm ). then we introduce the conception of optical flow field, compute the local
首先構建三維剛體運動的模型，提出一種計算模型的全局運動矢量的方法，並進行全局運動補償、變化檢測模板提取和連通域標記等步驟，然後引入光流場的概念，並介紹其計算原理和方法，用horn - schunck迭代法計算圖像中各點的局部運動矢量，並據此對變化檢測模板的結果進一步提取，獲得時域上分割的信息。 -
Introduced a new way for dispersion compensation in transmission using uniform fiber bragg gratings. at the last, the analysis of fiber grating production with a phase mask was carried out. based on diffraction and interference theories, we access the near - field optical intensity distributions produced by a periodic mask and draw the important conclusion that we must put the mask near the fiber as we can in the experiment
最後論文討論了光纖光柵的製作，分析了掩膜板后干涉光場的分佈，指出了掩膜板製作應該盡量實現零級抑制，且在系統調試中，光纖要盡量靠近掩膜板放置這一重要結論，在此基礎上利用現有實驗設備製作出了光纖光柵，研究了不同曝光條件對光柵製作的影響，並利用實驗分析了光柵的溫度穩定性。 -
On the basis of the third kind structure ( the modulator in simulative field ), the paper gave out a method to realize the software radio digital hardware modulator which can perform the function of ask, psk, dpsk, mask, qpsk, dqpsk, qam, oqpsk modulations, using the apparatus of dsp and cpld. the test showed that the modulator can meet the request of system design
並以第三種結構的數學模型（模擬域的正交調制模型）為基礎，以dsp和cpld器件為核心，進行了硬體電路設計，實現了基於軟擴頻系統的軟體無線電數字硬體調制平臺，實現了多種數字調制方式，其中包括ask ， psk ， dpsk ， mask ， qpsk ， dqpsk ， qam ， oqpsk調制方式。 -
Centering at soft x - ray multilayer uniformity technology, we introduce general situation of multilayer, design of multilayer structure, simulation calculation, ion - beam sputtering deposition and evaluation of samples. above all, we carry out study of improving uniformity of period thickness spatial distribution, and develop correction mask for controlling period thickness. as a result, we improve uniformity from 4. 5 % to 2. 0 %, the error of period thickness on ( 130nm field is controlled within 0. 18nm, and the reflectivity reach 35 % at center wavelength 17. 1nm
特別地，我們設計並應用膜厚擋板補償技術控制多層膜的膜厚分佈，將膜厚分佈非均勻性從4 . 5減小到2 ，周期厚度絕對差值控制在0 . 18nm以內，並且制備得實際多層膜樣品在中心波長17 . 1nm處實測反射率達到35 ，達到實用水平。
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