doas 中文意思是什麼
doas
解釋
介紹了差分吸收光譜-
Two fundamental approaches, differential optical absorption spectra ( doas ) and wavelength modulation harmonic measurement, for gas light absorption detection are discussed
分析了波長調制諧波檢測技術和差分吸收檢測技術兩種弱信號檢測方法。 -
Doas method that have not been associated with the
方法之前的調用堆棧） ，它還沒有與包含在認證的 -
Doas is adopted based on the existing laboratory condition
針對現有實驗條件選擇差分吸收檢測法。 -
The mathematical model of doas is founded with the characteristic of medium light
從介質光吸收定律入手，建立了差分吸收檢測法的數學模型。 -
Based on the principle of differential optical absorption spectrometry ( doas ), a set of detecting instrument for indoor air quality is proposed
摘要基於差分光學吸收光譜法原理，研究了一套室內空氣質量檢測裝置。 -
The correct estimation of incident signals " direction of arrivals ( doas ) is the premise of doa - based beamforming algorithms
對來波的波達方向（ doa ， directionofarrival ）進行正確估計是doa波束形成演算法的前提條件。 -
In order to make the doas estimation faster, this paper discuss how to used multiple dsps to parallel implement the algorithm
採用music演算法，需要對復矩陣進行特徵分解，本文使用兩種方法: jacobi法和householder 、 qr方法。 -
With advantages of its lower equipment expenses and excellent monitoring capability, doas technique will own broad prospect at home
這種技術由於自身的優勢，包括低廉的設備費用和出色的監測能力，在我國應該有著寬闊的前景。 -
A novel joint estimation algorithm for ranges, frequencies and doas of multiple near - field narrowband sources is proposed in the near field is proposed
摘要提出了一種新的多個近場窄帶信源距離、頻率及到達角三維參數的聯合估計演算法。 -
Since applied in atmosphere monitoring at the end of 1970 ` s, differential optical absorption spectroscopy （ doas ） have made quiet great progress
差分吸收光譜技術（ doas ， differentialopticalabsorptionspectroscopy ）自20世紀70年代末被人們應用於大氣氣體監測以來，在這方面已經取得了長足的發展。 -
Discuses doas ' demand to fresh air humidity ratio and model by rotary wheel removing moisture load, and analyses its scheme and energy consumption of dons by rotary wheel removing moisture load based on solar energy regeneration, and result shows a 30 % energy saving comparing to cooling dehumidification, and it can supply cooling capacity freely when using directly underground water or cooling tower supplying cooling capacity during transition season periods
討論了獨立新風系統對新風送風含濕量的要求和除濕轉輪承擔系統濕負荷的方案，分析了基於太陽能再生的轉輪除濕獨立新風系統空氣處理過程及能耗，結果顯示與直接冷卻除濕的獨立新風系統相比節能30 % ，在直接利用地下水供冷或在過渡季節使用冷卻塔供冷的情況下則可以達到免費供冷的目的。 -
The article mainly includes the design of experimental set and concentration retrieve arithmetic. as doas technique is a kind of weak light detecting technology, it is the key to increase the snr ( signal - to - noise ) of spectral signal
由於差分吸收光譜技術是一種弱光檢測技術，所以對于其相關實驗裝置來講，提供高的信噪比是關鍵，從而使得限制雜散光、消除各種光電子噪聲等變得很重要。 -
The approach extends the parallel factor ( parafac ) analysis model from the common data - domain and subspace multiple invariance sensor array ( mi - sap ) formulations to the cumulant one, and forms three - way arrays by using the cumulant matrices got from array outputs, and analyzes the uniqueness of low - rank decomposition of the three - way arrays, then jointly estimates the ranges, frequencies and doas from the matrices via low - rank decomposition
該演算法將通常在數據和子空間域應用的平行因子分析模型擴展至高階累積量域，利用陣元輸出計算的高階累積量矩陣構造三面陣，分析了該三面陣低秩分解的唯一性，並從分解得到的多個矩陣中聯合估計信源距離、頻率及到達角。
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