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spectrogram n.【物理學】光譜圖。

spectrograph

The project aims at providing a modular framework which allows the user to define new polymer chemistries , build them into sequences and perform sophisticated computations on them that simulate chemical reactions in order to create a simulated mass spectrogram reflecting all the previous steps 這項工程的目的是要提供一個模塊框架,允許用戶定義新的聚合化合物,將它們編入序列,并對它們進行模擬化學反應的復雜計算,以創建一個模擬的質譜從而反映所有以前的步驟。

The algorithm , basing on convolution filtering technique and the fringes “ gray values max - min distribution , can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement . the new algorithm makes image processing much caster and the technique of object shapes measurement more automated . the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed 本文采用投影光棚相位法和數字卷積濾波技術:根據柵線的條紋灰度值分布具有極大極小分布的特性,提出卷積濾波形貌光學自動檢測的圖像處理方法,有效地實現了頻譜自動移位,從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度;同時對采用兩光學主軸相交,且非遠心投影系統所產生的誤差進行了分析,并提出了修正方法。

Simultaneously , a new fbp criterion is presented based on the gray - lavel and contour for the image of gabor spectrogram and the relation parameter is used to make flutter boundary prediction . the functions of the method are studied by computer simulation and further examined by using several flutter testing data ( low - speed wind - tunnel , high - speed wind tunnel and flight ) 本文詳細研究了顫振信號聯合時頻譜圖的特征,應用圖像邊緣識別方法對顫振信號時頻譜圖的輪廓、灰度進行了綜合分析,給出了一種全新的顫振余量定標量化法,依此量化值完成對顫振邊界的外推。

Abstract : a software method of frequency - modulated signal demodulating based on wavelet packet is proposed in this paper . a variety of frequency - modulated signals are analyzed in time - frequency domain and the spectrograms are presented . this method can detect instantaneous frequency effectively and get frequency - modulated information , can be widely applied to dynamic testing and software radio 文摘:提出了基于小波包的調頻波解調方法,通過對各種調頻信號進行時頻分析,給出了信號的時間?頻率譜圖,能有效地檢測到瞬時頻率和獲取調頻信息,該方法可廣泛應用于動態測試和軟件無線電等領域。

The paper presents the experiment equipment for the measurement of the elastic - optic effect of curled birefringence fiber , then analyzes spectrogram at winding loss , and the rule of the circle of optical fiber producing elastic - optic effect 摘要給出測試單模雙折射光纖彎曲時彈光效應的實驗裝置,分析了彎曲損耗光譜,定性提出光纖圈產生彈光效應的規律。

This article introduces the synthesis method of 12 - aminododecanoic acid , and it was molecularly characterized by means of the spectrograms of mass spectrum , infrared spectrum and nmr of 12 - aminododecanoic acid 摘要主要介紹了12 -氨基十二酸的加氫方法,并利用質譜、紅外光譜、核磁共振等手段對加氫產物進行分子表徵。

Adopting high speed digital signal technique of collection and processing to get indexes which can show the unevenness , such as cv , uneven curves , spectrogram , etc 采用高速數字信號采集處理技術,能得到cv值,不勻曲線,波譜圖等反映紗條不勻信息的有用指標,人機界面友好,操作簡單方便。

The paper introduces the database , code and index method of ir spectrogram and discusses the design and application of computer assistant index system of ir spectrogram 摘要介紹了紅外光譜圖譜計算機輔助檢索系統中數據庫的建立、譜圖的編碼、圖庫檢索方法以及系統實現過程。

In this paper , a wavelength is brought in to creat a three - dimensional spectrogram about i ( t , ) , which will gain more information and enlarge applied fields 本文引入波長這一參數,生成i ( t , )的三維熱釋光譜圖,可以獲得更豐富的信息,擴大tl的應用范圍。

Using the method of pcr to handle the nir spectrograms of the samples , we can detect quickly whether the samples were adulerated or not 通過對上述食品近紅外光譜的主成分分析( pcr ) ,可快速判別蜂蜜、苦蕎、芝麻油樣品摻雜。

Still the spectrogram , in which there was exactly equal value between every frequency component , manifested the property of periodical oscillation 頻率譜中各諧頻之間具有嚴格相等的差頻,表現出周期性振蕩的特性。

The structure of the extract was determined by ir , and the spectrogram is accordant to standard product 考察了提取劑的含水量、浸泡時間、原料性質和原料預處理方法等因素對提取的影響,獲得了最佳提取條件。

An application of watermarking to spectrogram sharing system 數字水印在譜圖共享系統中的一種應用