phase retrieval 中文意思是什麼
phase retrieval
解釋
相位復原-
The design of dgwfs and the quadratically distorted diffraction gratings is introduced firstly in chapter 1. secondly, based on the prevenient algorithms, the phase retrieval for the novel dgwcs is discussed by comparison, also more analysis is made by examples in chapter 2
第二章在總結、研究和改進前人理論方法的基礎上，總結了適合光柵型波前曲率傳感器相位恢復的三種演算法，並作了詳細的理論推導、分析和舉例說明，完善了光柵波前曲率傳感器的相位恢復理論。 -
First, in order to verify the correct of this retrieval month, by using the data of three - dimensional wind field, raininess field and temperature field that are output by mm5 numerical simulation, we climate the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, we retrieve the atmospheric three - dimensional wind field
首先，為檢驗此種反演方法的可靠性，我們使用mm5數值模式輸出的三維風場、雨強場、溫度場等數據，分別模擬生成兩部雷達同步觀測區的徑向速度場和回波強度場，然後根據以上的反演理論利用模擬的雙多普勒天氣雷達觀測到的徑向速度場和回波強度場反演出大氣三維風場。 -
Thirdly, phase retrieval by use of gerchberg - saxton ( gs ) algorithm based algorithm and phase retrieval by use of a green ’ s function under neumann boundary conditions is applied to dgwfs. the phase retrieval of combinations of zernike is simulated in computer
第三章分別對基於gesrchberg - saxton法（ gs法）的迭代法和neumann邊界條件的green函數法的波前恢復進行了計算機模擬，並給出了具體程序框圖。 -
Therefore, the study of phase retrieval of dgwfs is important. in this paper, the difference of wfs and wfcs is discussed
研究光柵型波前曲率傳感器的相位恢復演算法對完善其相位恢復理論和其應用都有著重要意義。 -
Where, in the international phase, when the international retrieval entity or international preliminary examination entity considers the international application is not in conformity with the requirement of singularity provided in the patent cooperation treaty, the applicant does not pay the additional fee as provided, thus causing some parts of the international application to not undergo international retrieval or international preliminary examination, or when entering the national phase in china, the applicant requires the above - mentioned parts to be regarded as the basis of examination, and the administrative department for patent under the state council considers the singularity of the invention has been well - judged by the international retrieval entity or the international preliminary examination entity, it shall notify the applicant to pay the fee for recovering singularity within a specified time limit
在國際階段，國際檢索單位或者國際初步審查單位認為國際申請不符合專利合作條約規定的單一性要求時，申請人未按照規定繳納附加費，導致國際申請某些部分未經國際檢索或者未經國際初步審查，在進入中國國家階段時，申請人要求將所述部分作為審查基礎，國務院專利行政部門認為國際檢索單位或者國際初步審查單位對發明單一性的判斷正確的，應當通知申請人在指定期限內繳納單一性恢復費。 -
Abstract : in this paper, a variety of encryption methods for optical image security are comparatively studied. according to the different method, the encrypted image can be transformed into white or color noise. the encryption phase can be the random phase or the chaotic sequence as well as the calculated result by used of the phase retrieval algorithm. the image quality and the correlative recognition ability of decrypted image are affected by the different part of the decryption phase and the amount of high frequency or low frequency used in the process of decryption
文摘:本文分析比較了多種實現光學圖象相位加密的方法，發現不同方法獲得的加密圖象有不同類型的噪音分佈.無論加密相位是隨機相位模板、渾沌序列的相位列陣，還是用相位重構迭代演算法計算的結果，它們都能起到加密圖象的功能.解密圖象的質量或被相關識別的能力與解密過程中所使用正確解密相位的不同部分以及高低頻分量多少有關，且其依賴程度是由不同的加密方法自身決定
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