相位譜 的英文怎麼說

中文拼音 [xiāngwèipǔ]
相位譜 英文
phase spectrum
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 譜 : Ⅰ名詞[書面語]1 （按類別或系統編成的書或冊子等） table; chart; register 2 （指導練習的格式或圖形）...
  • 相位 : phase position; phase
  1. Standard test method for acetone, methyl acetate, and parachlorobenzotrifluoride content of paints, and coatings by solid phase microextraction - gas chromatography

    用固相微提取氣相色譜法測定顏料和塗料中丙酮甲基丙酮對位氯苯三氟化物含量的標準試驗方法
  2. The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested

    在理論分析的基礎上，提出了以下的實用技術： 1 ）用譜分析方法從截獲的信息中自動提取同步信息； 2 ）用積分投影、微分定位的方法進行相位檢測，實現可靠的鎖相和電子穩像； 3 ）將電子穩像技術用於重加濾波和梳狀濾波的濾波方法，改進了濾波效果； 4 ）通過檢測圖像信息熵實現圖像採集參數的自動調整，改進了圖像採集的質量； 5 ）設計了用於儀器定標的標準測試圖，可以對泄漏信息進行定量檢測。
  3. In order to obtain a high - quality speech codec, the phase information of speech should be included in codec. in this thesis, a method for quantizing the phase of sew ( slowly evolving waveform ) and reconstructing sew ’ s phase with cubic polynomial interpolation is given based on the perceptual weighting analysis - by - synthesis ( a - b - s ) vector quantizer for the phase spectrum in wi coder

    本文基於感覺加權相位譜分析合成（ abs - analysis - by - synthesis ）矢量量化方法，給出了一種wi編碼器中慢漸變波形（ sew - slowlyevolvingwaveform ）的相位信息量化及合成端相位的三次多項式插值重建方法。
  4. Based on the character of ultrasonic spectrum analysis, considering the affection of the circuit responsion of checking system, coupling state, position of checking transducer, this thesis established reasonable ultrasonic spectrum analysis method. using this method, several kinds of linear spectrum ( such as phase amplitude spectrum, phase power spectrum ) were researched and discussed

    本文根據超聲波頻譜分析的特點，綜合考慮了檢測電路響應、耦合狀況、探頭位置等因素的影響，制定出了一套合理的超聲波頻譜分析方法，並用此方法對幾種線性譜（如相位幅度譜、相位功率譜等）進行了研究和探討。
  5. In recent years, the worldwide researchers pay much attention to fourier telescopy. it is an active imaging technique that encodes the information in the temporal instead of spatial domain, then receives the speckle and deposed of it to reconstruction the object image. now, the high - resolution technique is under the condition of deeply researched

    它是一種主動式干涉成像技術，這一技術通過時域內的相位的調制完成直線條紋對目標的掃描，從而達到對深空目標頻譜的抽樣，然後接收其散射回波，對回波信號進行處理，進而還原出目標的像。
  6. Atomic emission spectrum and phase properties of the field in some atom - field coupling systems are investigated. effects of quantum interference between two different transition pathways on atomic emission spectrum and phase properties of the field are discussed

    本文研究了光場與原子相互作用系統中原子的發射譜和光場的相位性質，討論了原子不同躍遷通道間的量子干涉對原子發射譜和光場相位性質的影響。
  7. Finally we focus our attention on studying the emission spectrum of two atoms driven by a single - mode field in an ideal cavity. we showed that the atomic emission spectrum is insensitive to the phase of field for the two atoms initially in the coherent superposition state tf / = v2 / 2 ( j +, - ) h ? + } ), when the two atoms is initially prepared in ( fs * } = cos ( 0 / 2 ] +, + ) + sm ( 0 / 2 ) ei ' p -, - ), the atomic emission spectrum is associated with not only the field photon - number distribution and the atomic populations, but also the phases of the field and the atomic dipole

    接著考察了好腔中由單模量子場驅動的雙原子發射譜，結果表明初態為的雙原子發射譜與驅動場的相位無關；而初態為的雙原子發射譜不僅與光場的光子數分佈以及原子的布居數有關，而且依賴于光場的相位以及原子偶極矩的相位，並且在適當的條件下，壓縮真空場可將雙原子俘獲在相干疊加態。
  8. After analysising three existed methods for phase difference correction on discrete spectrum, it is recommended to correct the spectrum containing small noise in engineer practice by the first phase difference correcting method ( performing fft analysis on two continuous original sequence ) with harming window

    綜合分析現有三種離散頻譜相位差校正方法，推薦在小噪聲工程實際中加hanning窗的第一種相位差法（采連續兩段信號作相同點數fft的相位差校正法）進行校正。
  9. Study shows that the basic principles of three existed methods for phase difference correction on discrete spectrum are identical, by which the twice fft analysis through time - domain shifting time series or changing window ' s length is performed, and the spectrum by making use of the phase difference of two corresponding peak lines are finally corrected

    在研究時域平移的離散頻譜相位差校正方法和改變窗長離散頻譜相位差校正方法的基礎上，發現這幾種離散頻譜相位差校正法的基本原理是一致的，就是通過時移和加不同的對稱窗進行兩次fft分析，並利用離散頻譜對應峰值譜線的相位差以求得頻率和相位校正量。
  10. It is found that flat and wideband sc ca n ' t be obtained in common dispersion - shifted fiber, and dispersion - flattened fiber with small normal gvd is most suitable for flat and wideband sc generation ( 2 ) sc generated in dispersion - flattened / decreasing fiber is studied profoundly

    結果表明，利用自相位調制效應在常規色散位移光纖一般不能產生平坦、寬帶的sc譜。具有較小正常色散的色散平坦光纖有利於平坦、寬帶sc譜的形成。 （ 2 ）研究了色散平坦漸減光纖中sc譜的產生。
  11. A conception of phase dynamic coupling is defined. the foc of the mot - radiated line spectrum signals is theoretically derived

    在研究中，定義了相位動態耦合的概念，推導了水下運動目標輻射線譜信號的四階累積量表徵公式。
  12. Because of the spectral line splitting of the burg algorithm, the recursive algorithm of the ar model, we choice the hamming weighted burg algorithm in this paper. the modified burg algorithm can weaken the spectral line splitting effectively. however, the ar model can ’ t gain the phase of the inter - harmonics

    由於ar模型的遞推演算法burg演算法存在譜線分裂現象，文中選擇使用hamming窗加權的burg演算法來遞推ar模型，修正後的burg演算法明顯減輕了譜線分裂現象，具有較好的抗噪聲能力，但無法得到間諧波的相位信息。
  13. A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied

    本論文在激光光束波前畸變檢測和控制上進行了新的探索，主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究，其研究的內容和取得的成果如下：一、根據標量衍射理論，結合低頻波前畸變的高斯隨機位相分佈模型，研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響，並採用描述中頻段波前畸變的功率譜密度概念，模擬計算了它對激光焦斑旁瓣的貢獻。
  14. Fiber - optic fabry - perot sensor is a kind of high precision interferometric fiber - optic sensor, so this kind of sensor has a bright future. this sensor can be classified into 3 kinds of sensors by their demodulation device. these are intensity modulation / demodulation fiber - optic fabry - perot sensor, phase modulation / demodulation fiber - optic fabry - perot sensor and white - light interferometer modulation / demodulation fiber - optic fabry - perot sensor

    按照信號解調裝置的不同該種傳感器可分為三類：強度調制解調型、相位調制解調型和白光干涉儀調制解調型光纖fp傳感器，其中后兩種採用寬光譜光源，是白光干涉型光纖fp傳感器。
  15. The predistortion, which aims at compensating for the nonlinear distortion caused by the power amplifier, has a good performance in eliminating the nonlinear distortion of am / am & am / pm, improving the aci and spectrum efficiency

    預失真技術是針對射頻功率放大器非線性而提出的一種補償技術，可以有效消除由非線性造成的傳輸信號的幅度和相位失真，降低信號鄰道干擾（ aci ） ，提高頻譜利用效率。
  16. In the paper, some key technique such as low - order modes correction for wave - front error, normalized phase power spectrum, atmospheric turbulent phase structure function, the residual phase structure function after low - order correction and strehl ratio are all analyzed

    提出了利用自適應光學系統校正低階模式波前誤差的方法與理論依據，引入規格化的相位譜，推導了大氣湍流相位結構函數、低階模式校正後的殘余相位結構函數以及斯特列爾比。
  17. Harada j, aoyagi m, suzuki t, et al. a study on the phase spectral analysis of middle latency response and 40 - hz event - related potential in central nervous system disorders j. acta otolaryngol ( stockh ) 1994, suppl 511 : 34

    呂建忠，唐小青，彭世春，等.聽性腦干反應相位譜分析客觀診斷中高頻聽力損失j .耳鼻咽喉-頭頸外科， 1997 ， 4 : 131
  18. Results showed that the samples of different heat treatment technologies of 38crmoal can be comparatively preferable distinguished by real spectrum and phase spectrum of fft. further research on real and image spectrum of fft discovered that using energy spectrum of real and image of fft to discriminate these samples is more compact and convenient

    研究發現用ut信號fft的實部譜圖結合相位譜圖能夠相對較好的區分38crmoal鋼的不同熱處理狀態：對ut信號fft的實部和虛部譜圖的進一步研究表明，用ut信號fft的實部和虛部能量譜來區分熱處理狀態更為簡捷和方便。
  19. It includes the stipulation that the phase spectrum over that range should be a straight line.

    它包括了在該范圍上相位譜應為直線的規定。
  20. Fourthly, respectively using cross correlation method for estimation of time delay, phase spectrum method for estimation of time delay and high order spectrum method for estimation of time delay, this paper measures time delay estimation of the data obtained because time delay between two signals has big importance on the testing result. through comparing three results, accurate time delay is obtained under their own different circumstances

    再次，由於兩信號的時間延遲對測量結果有很大的影響，因而研究了用互相關時間延遲估計、相位譜時間延遲估計和高階譜時間延遲估計的方法對測量數據進行了時間延遲估計，結果表明，三種時間延遲估計方法在各自適應的環境下使用，都能得到比較準確的時間延遲估計值。
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