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It has been deduced that the search direction remains the same but that the step length decreases in optimizing the improved cost function with the conjugate gradient algorithm from the gradient of the cost function that the fir filter apporaches the contrary point spread function ( psf ) more , and that the estimated image is closer to the original one 從代價函數的梯度入手推導出共軛梯度算法,其搜索方向保持不變而搜索步長變小,使濾波系數更加退近于點擴展函數逆算子,從而使估計圖像與原始圖像更加接近。

The major meaning provided in this thesis is that it provides a ha design and implementation based on psf information update mechanism , and implement the fault tolerance function of megaco protocol stack , complete the integration of trillium ' s megaco product , which is a typical distributed telecom software , and wacos ha manager 本文工作的主要意義在于提供了一種基于psf信息刷新機制的ha方案,在此基礎上實現了megaco的系統容錯功能,完成了trillium的megac0協議棧這種典型的分布式大型電信軟件與wacos網關ha管理模塊的集成。

In this ha design , the psf module is divided into three sub - modules including the core control sub - module , the state update sub - module and the system agent sub - module . then all the interface functions are well defined and the critical data structure is given . finally the flow of related state information update procedure is designed and all the function primitives are defined and implemented 在本文提供的ha方案中,將psf模塊劃分核心控制,狀態刷新,系統代理等子模塊,并定義了清晰的函數接口和關鍵的數據結構,設計了相關的信息刷新流程,完成了所有函數原語的分解與實現。

Based on the detailed analysis on the current main ha technologies and the ha architecture in wacos gateway , which is a typical soft switch network device , and considered the characteristics of trillium ' s implementation of ha and protocols , the dissertation presents a warm - standby ha design based on psf ( protocol - specific - function ) information update mechanism 在詳細分析了當前主要的ha技術及一種典型軟交換設備? wacos網關中ha體系實現的基礎上,結合trillium公司megaco協議棧產品及其ha的實現特點,本文提出了基于psf ( protocol - specific - function )信息刷新機制的溫備份( warm - standby )的ha設計方案。

As we know , correct identification of the psf parameters permits fast high resolution restoration of the blurred image . using the method , we can quickly restore the blurred image on line , and when the noise of the image is bigger , it can perform very well to identifity the blurred distance 當確切知道模糊系統的點擴散函數時,就可以快速有效地恢復模糊圖像,使用本文方法,可以滿足適時性圖像處理的需要,并且不需要事先知道相機的系統參數,在圖像噪聲較大的情況下,也可以很好的確定出來模糊距離。

Pdmaema can be cross - linked by quaternization to develop a positively charged dense network structure . according this mechanism , pdmaema / psf positively charged nanofiltration membrane was developed by interfacial polymerization using psf plate macrofiltration membrane as support layer , pre - polymer of pdmaema water solution as coating solution , p - xylylene dichloride / heptane as cross - linking agent 根據這一機理,以psf平板微孔膜為基膜, pdmaema預聚物水溶液為涂層液,以對二氯芐正庚烷溶液為交聯劑,采用界面聚合法制備了pdmaema psf荷正電復合納濾膜。

The thesis also discusses the thermal blooming and physical of the heat halo produced by intense laser . the thesis emphasizes on otf and psf of atmospheric turbulence . taking three screen systems as the example , we get the ideal approximation model , especially the short - exposure otf 并介紹了強激光產生熱暈的理論模型及其物理特性機理,重點介紹湍流大氣的otf和psf ,以三種屏系統為例,得到湍流大氣的理想近似模型,特別是短曝光otf 。

The advantages and disadvantages of three kinds of models such as , mtf model and psf model are given on the basis of comparing each model . as a result , ray tracing model and mtf model are integrated as the mathematic model of this paper 通過對三種成像仿真模型光線跟蹤模型、調制傳遞函數模型和點擴散函數模型的比較,分析了它們各自的優缺點,從而確定調制傳遞函數模型和光線跟蹤模型結合起來作為本文的仿真模型。

At the end of this dissertation , a general ha test platform used for psf mechanism and a cluster of considerate test cases , which are specific to megaco ftha , are given and executed in a simulation environment . the test result is fairly successful 最后,本文在仿真的目標機環境下,針對megaco的ftha的主要實現要求,設計了通用的基于psf機制的ha測試平臺及較為全面的測試用例,并得到較為理想的結果。

The form of the psf has been deduced according to the fresnel diffraction , and it has been analyzed that the frings density of the psf depends on the axicon ' s refracting angle and the distance l between the point light source to lens l2 利用菲涅耳衍射理論,推導出相干光照明下無衍射系統的點擴散函數( psf )的形式,并分析出點擴散函數的條紋疏密與錐鏡的夾角和點光源的位置有關。

The main works in this paper is that , by calculating points spread function ( psf ) and simulating the forming of images of monochromatic light and ideality geometrical optics on the computer , we have simulated successfully doe imaging process 在計算機上通過模擬點擴散函數( pointsspreadfunction簡稱psf ) 、理想幾何光學成像、單色光成像,成功地模擬了doe的成像過程。

In this paper , a positively charged composite nanofiltration membrane was developed by using poly ( n , n - dirnethylaminoethyl methacrylate ) ( pdmaema ) as the active layer material and polysulfone ( psf ) macrofiltration membrane as the support layer 本文以聚甲基丙烯酸二甲氨基乙酯( pdmaema )為表層材料,以聚砜( psf )微孔濾膜為基膜,制備了荷正電復合納濾膜。

To quantificationally analyze point spread function ( psf ) models for full digital autofocus method , an evaluation method of mean square error between original image and processed image was proposed for comparison performance of algorithms 摘要為了對用于全數字對焦的點擴散函數模型進行定量分析,提出用原始圖像與處理所得圖像的均方差進行性能評價的方法。

In the light of the weakness of the traditional method , this thesis improves the point spread function ( psf ) of the imaging system . meanwhile , this thesis adds line process as a priori to set up several convex constraint sets 針對傳統凸集投影估計法的缺點,本文提出了改進的點擴散函數,同時利用圖像的先驗知識,提出了加入線過程作為凸約束。

Based on the psf , some basic characters including reconstructed image lateral resolution and the size limit of the recorded object in the in - line phase - shifting digital holography are theoretically discussed 第四章討論了同軸相移數字全息中,相移角的選取、相移誤差以及量化誤差對再現像的影響。

With point spread function ( psf ) , the analytical expression of imaging resolution of the ultra - wideband ( uwb ) signal for both 360 ? and small angle rotating target are given 不同于其它uwb信號, impsar的輻射與接收有其特殊性,即信號的時空偶合,本文定量分析了時空偶合對impsar成像的影響。

Based on the theories of non - diffracting imaging system in coherent light , the measurement system of point spread function ( psf ) of non - diffracting imaging system has been presented 摘要在分析相干光照明下無衍射成像系統理論的基礎上,設計了無衍射光成像系統的點擴散函數的測量系統。

The article was related pi 、 psf 、 pps 、 peek and pes etc , particular kind engineering plastics develop - ping actuality and the marketplace progress 摘要敘述了聚酰亞胺、聚砜、聚苯硫醚、聚醚醚酮和聚醚砜等特種工程塑料的發展現狀和市特種工程塑料的發展現狀和市場進展。

Then design and characteristic equations , incoherent point spread function psf and computer simulations of binary optic imaging spectrometer ' s imaging performance are provided 第三章詳細介紹了二元光學成像光譜技術的基本原理、特性方程、目標重建算法和優缺點。