頻應復原 的英文怎麼說

中文拼音 [bīnyīngfùyuán]
頻應復原 英文
deemphasis
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 復 : Ⅰ形容詞1 （重復） repeated; double; duplicate 2 （繁復） complex; compound Ⅱ動詞1 （轉過去或轉過...
  • 原 : Ⅰ形容詞1 （最初的; 原來的） primary; original; former 2 （沒有加工的） unprocessed; raw Ⅱ動詞（原...
  1. In this paper, based on the study of vga graphic displaying theory and the theory of synchronizing display between led large - screen display system and crt image, a method, bit plane addressing method which has good effect -. high ratio of performance to price and can be implemented easily in circuits is discussed. and the principle and the implementation of the multi - gray led display system with programmable logic devices cpld and fpga are analyzed in detail

    本文在分析vga圖象顯示原理和led大屏幕與crt視頻圖像同步顯示原理的基礎上，論述了一種顯示效果較好、性能價格比高、電路上易於實現的方法? ?位平面尋址法實現多灰度圖象，並詳細分析了應用復雜可編程邏輯器件cpld和在線可編程邏輯器件fpga實現多灰度彩色led大屏幕圖像顯示的原理及電路實現。
  2. For video codec, after analyzing and researching the newest standard h. 264, an efficiency algorithm was proposed in this paper using self - feature, spatial correlation and temporal correlation to judge the encoding mode of one macro - block. through this method, the best prediction mode can be obtain before encoding, then, the coding time can be reduced dramatically with a little expense of bit - rate. for video transmission, in this paper, a transmit method was proposed using tcp / ip protocol under the environment of local networks

    首先，在分析及研究最新的視頻編碼標準h . 264的基礎上，利用宏塊自身的特點和其時間、空間的相關性來判斷宏塊應該採用的編碼模式，從而提前得到該宏塊的最佳編碼模式，新方法有效地克服了原標準演算法中窮舉式的復雜演算法，在壓縮碼流只有少許增加的情況下，大幅度地提高了幀內及幀間編碼的速度。
  3. 4. with visco - elastic boundary of soil considered, the eigenvalue equation in frequency domain of soil dynamic equilibrium equation falls into a complex transcendental equation. in course of seeking its solution, based on argument principle and contour integral, with the aid of matlab, two numerical algorithm combined with the corresponding procedures for solving transcendental equations in a complex plane is developed by the author

    4 、由於考慮了土體的粘彈性支承邊界條件，使得其動力平衡方程在頻域內的固有值方程為一復數超越方程，為了求解該方程，筆者基於幅角原理和閉合曲線積分，結合matlab ，提出了復平面上超越方程的兩種數值解法，並編制了相應的程序。
  4. Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations. the result shows that response of both sides support is synchronous when load distribution non - uniform coefficient is 1

    依據振動理論建立了具有彈性支撐的輸出軸的動力學分析模型，根據周期函數的傅里葉級數展開原理，將復雜的激振力分解成為多個頻率成整倍數關系的簡諧激勵函數，導出了動態響應表達式，結果表明，當載荷分配不均勻系數為1 . 0時的輸出軸兩端支撐同步。
  5. This article analyses the signal characteristics of several typical cw radars, and presents the principle and application of doppler radar. as one focal point, this article researches the generation and math characteristics of pseudorandom code modulated signal, analyses the spectrum of pseudorandom code phase modulation radar signal, and presents this kind of signal ' s application in distance and speed measurement. this article also researches the application of mono - pulse amplitude comparison radar in angle measurement finally, this article elaborates the working process of crs in uast

    本文分析了幾種典型的連續波雷達信號的特性，介紹了多普勒雷達的原理和應用；研究了偽隨機編碼信號的產生和數學特徵，著重分析了偽碼調相連續波雷達信號的頻譜，及其在雷達測距、測速方面的應用；研究了單脈沖幅度比較體制在雷達測角中的應用；最後，闡述了超近反導系統中復合體制雷達的工作過程。
  6. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  7. Also it is discussed how to improve loading performance and the actual results using invariance theory. by the feedforward signals of velocity and acceleration, it is expected to expend the bandwidth to 15hz or even higher and reduce the additional torque at 80 percent. in this thesis, i mainly explored the design theory of ehsls and made a lot of experiments on subsystems and the whole system

    本文的目的就是設計、調試帶有彈簧桿緩沖結構的單通道電液伺服加載臺，通過試驗比較、驗證不同控制演算法的工程實際效果；分析和研究應用結構不變性原理如何改善加載系統的動態性能，目的是通過引入速度和加速度的復合前饋信號將系統的動態頻帶提高到15hz左右，並且有效的抑制力加載系統固有的多餘力矩，抑制比要達到80以上。
  8. According to application decomposition principles, sophisticated calculations and significant data managements can be undertaken by high performance computer ( server ), and application tasks, which require frequent interaction between computer and users, undertaken by common computer ( client )

    按照把應用分解的原則，將較復雜的計算和重要的資源管理交給網路上的高檔計算機（服務器） ，而把一些頻繁與用戶打交道的應用任務交由前端的較簡單的計算機（客戶）來完成。
  9. This continuous rule can put the suspension system in the optimal damping state. the skyhook principle can be combined in this control rule, which can further attenuate the vibration of the car - body in lower frequency range, but the acceleration response in higher frequency range tend to be larger

    文中還研究了把基於天棚阻尼原理的阻尼控制策略結合到該控制系統中的復合控制方法，前者能使系統始終處于最優或次優阻尼，後者則能進一步衰減低頻振動，但也有增大高頻響應的趨勢。
  10. Perhaps the difficulty is how to build a im model which not only can work at common state but also can embody the high - frequency characteristic. in this thesis, we build two different parts separately to realize two different states, but we use speed, angle of flux and son on to connect them into one model

    主要原因是該方法所需的異步電機模型相當復雜：首先該模型能在基波條件下工作，實現基本的機電能量轉換，其次該模型還要對高頻信號進行響應，體現出高頻激勵下d - q軸阻抗差異特性。
  11. It mainly includes following aspects : in this paper, firstly implication of wavelet analysis in signal harmonic component extraction is presented in detail, and on this foundation signal given frequency band component extraction method is proposed. then we investigate frequency aliasing phenomenon, reason why frequency aliasing phenomenon is easy happened when wavelet is implied in field of motor fault diagnosis, and frequency bands where frequency aliasing phenomenon is easer happened, and put forward approved morlet wavelet analysis method which can effectively alleviates frequency aliasing phenomenon. third we set up vibration signal detected system, design experiments to obtain three groups of fault signals : eccentricity fault, mixed fault of eccentricity plus mild rub, mixed fault of eccentricity plus moderate rub, and process these data using analysis method proposed in this paper

    首先對論文的選題以及相關背景進行了探討，並對相關的小波基礎理論進行了闡述，主要針對感應電動機的偏心故障和偏心+碰摩復合故障形式及相關的應用演算法進行了詳細探討，主要工作內容包括下面幾個方面:在論文中，首先對小波分析在信號的諧波分量提取中的應用進行了研究，在此基礎上，提出了信號的特定頻帶成分的提取方法;研究了小波分析的頻域混疊現象，探討了小波分析應用於電機故障診斷領域時易發生頻域混疊現象的原因，以及混疊現象較易發生的頻帶，提出了可以有效減輕頻域混疊現象的改進的morlet小波分析方法;搭建了振動信號檢測系統，設計實驗採集得到三組故障數據:偏心故障，偏心+輕微碰摩復合故障，偏心+中度碰摩復合故障，並對這些數據應用本文提出的分析方法進行信號處理，提取出的特徵參數可有效區分這兩種故障形式;研究了基於matlab和labview的混合編程方法，完成了電機故障檢測系統的軟體開發。
  12. At present, purchease - sales - inventory manage systems generally have two types of constructive patterns. one is c / s, the other is b / s. in view of their advantages and shortcomings as well as correlative factors, such as its operations characteristic and actuality, being changing intranet environment and customary demanding fashion and developing trend of operations and manage fashions of corporations, the paper puts forward a kind of mixed constructive pattern of c / s and b / s aiming at complex operation, frequent data processing, more data transmitting and high - demand to security, the c / s is used. on the contrary, for those operations of wide scope and low - rise security, the b / s is used. in this way, the mixed patterns has the advantages both c / s and b / s and it satisfied different special demands

    目前進銷存系統一般採用c s或b s兩種結構模式，根據圖書進銷存業務特點和現狀、現在企業普遍改造的intranet環境、企業長期的需求習慣方式及將來業務和經營方式的發展趨勢，針對c s 、 b s結構進銷存系統各自優缺點，本文提出了採用一種c s和b s混合結構模式。把業務復雜、數據處理頻繁、數據傳輸量大、安全性要求高的業務，運用c s結構模式，而對于面向范圍廣、安全性要求不高的業務，運用b s結構模式。這樣集c s和b s結構的優點，滿足了圖書進銷存業務不同的特點需求，同時，使企業的原有的經營處理應用系統能平滑過渡，也為滿足今後新的需求具有很好的擴展性。
  13. Then in this article resonance method is adopted. the paper analyzes the usual measurement methods of complex permittivity, then analyzes and chooses te0np circular cavity based on the methods of the te01n high - q circular cavity, uses the mode purifying and cavity dimension optimizing techniques. the resonant frequencies of varies modes in the resonant cavity have been drawn by using matlab software, which makes our work more rapid and convenient

    本文首先分析了復介電常數的常用測試方法，然後分析並選用了基於高q腔法原理的te0np圓柱腔，應用模式凈化和腔體優化技術，利用matlab這一運算性能強大的工具軟體編程，作出諧振腔中各個模式的頻率分布圖，使系統的設計工作清晰、便捷。
  14. In this paper, the fundament, the system architecture and the application of orthogonal frequency division multiplexing ( ofdm ) were discussed, and the mathematic model of time - varying multi - path based on the discussion of mobile fading channel characteristic were analysed, and the channel model were discussed by computer simulation

    本文首先簡要介紹了正交頻分復用（ ofdm ）的基本原理、系統組成以及ofdm的實際應用。在分析移動通道衰落特性的基礎上，分析了多徑時變通道的數學模型；並用計算機模擬的方法對通道模型進行了討論。
  15. But, though considerable process has been made in the last ten years, digital watermarking is still in its infancy, and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor, a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above, by defining the measures of capacity and robustness of digital watermarking, an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark, we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation, and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above, and combined with the masking effects of hvs, a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation. the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes, which embed watermark by modifying the values of pixels in spatial domain and transformed domain, are confronted with the conflict between the imperceptibility and robustness, we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed

    本文重點對灰度圖象數字水印技術進行研究，主要工作如下： 1 ）鑒于目前數字水印的理論研究比較薄弱的現狀，本文通過分析數字水印的特點，建立了一個數字水印的數學模型，為進一步研究數字水印打下了基礎； 2 ）根據以上建立的模型，通過引入容量和穩健度的概念為數字水印提供了一個客觀評價方法，並對一些數字水印演算法進行了分析； 3 ）為增強數字水印抵抗幾何攻擊的能力，研究了受幾何攻擊的圖象的復原問題，並給出了一個計算圖象幾何變換參數的方法； 4 ）通過分析圖象灰度插值演算法和haar小波變換的特點，結合hvs的掩蔽效應，設計了一個公開的有意義數字水印演算法，實驗結果表明本演算法具有較強的穩健性； 5 ）目前許多水印演算法都是通過在空域或頻域修改象素值的方法嵌入水印的，這種方法面臨著透明性和穩健性的矛盾，為解決這個矛盾，本文提出以圖象的某些穩定的數字特徵為水印的觀點，並結合hermite矩陣的特點設計了相應的水印演算法，實驗結果表明該演算法具有較好的穩健性。
  16. The contactless hall effect - based measuring principle gives the pressure switch extremely good repeatability and longevity, even with extremely high load change frequencies. the adjusting screws allow the switching points of the magswitch

    符合無觸點霍耳效應測量原理使得這種壓力開關即使在極高負載變化頻率條件下也具有卓越的可重復性和壽命。
  17. The apfs using according detection method are investigated and developed by simulating and experimenting to demonstrate the performance of the proposed detection method and apf. secondly, a nonlinear, large signal control theory - one cycle control, which was presented in the 90 ' s and suitable especially for switch power converter ， was investigated. the integration reset control and extension applications ， which was < wp = 7 > developed based on one cycle control theory, was emphatically studied

    本文深入分析了90年代初發展起來的一種適合開關變換器的大信號非線性控制理論? ?單周控制（ onecyclecontrol ）理論，以及在此理論基礎上發展起來的常頻積分復位控制技術和它的最新應用，首次成功地將單周控制理論應用於apf的檢測和控制中，提出並實現了一種通用常頻積分復位控制有源電力濾波器，從而簡化了apf的工作原理和結構。
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