點擴展散函數 的英文怎麼說
中文拼音 [diǎnkuòzhǎnsǎnhánshǔ]
點擴展散函數
英文
point spread function- 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
- 擴 : 動詞（擴大） expand; enlarge; extend
- 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
- 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
- 數 : 數副詞（屢次） frequently; repeatedly
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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On the basis of increasing the flaw resolution of the x - ray radiographic system, the study is firstly concerned with the analysis made on the influence of such factors as redial sources energy, system noise, optics radiography and scattering on the radiographic system in theory, and the present dissertation looks at the methods for acquiring the radiographic system point sp read function, line spread function and module transfer function ( mtf ). on the basis of these studies, research the spread properties of the tiny flaw making use of mtf, acquiring the properties of system inspecting sensitivity and resolution, based on the system optimization designing
本文以提高射線成像系統的疵病解析度為前提，首先在理論上對射線源能量、系統噪聲、光學成像、散射等各環節對成像系統的影響進行分析，探討成像系統的點擴展函數、線擴展函數及其調制傳遞函數（ moduletransferfunction ，簡稱mtf ）獲取方法，在此基礎上，利用mtf研究微小疵病的擴展特點，從而得到系統的檢測靈敏度和解析度給出關系特性，為系統優化設計提供依據。The purpose of this work is to improve the space resolving power of the temperature measurement system for small laser - processed region. the main conclusions and contributions are as follows : 1. after expatiating upon the principle of radiation thermometry, we mainly discuss the effects on the space resolving power and the measurement precision of the real - time temperature measurement system by some factors
本文的工作就是圍繞輻射測溫系統空間分辨能力的提高技術展開的，主要的研究結果和創新之處如下: 1 .在闡述不接觸測溫原理的基礎上，討論了影響空間分辨能力及測溫準確性的兩種因素? ?強度點擴展函數有效分佈、進入系統中的雜散光。
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