預濾波 的英文怎麼說

中文拼音 [yùlǜbō]
預濾波 英文
pre-filtering
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 濾 : 動詞（除去液體雜質） filter; strain
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  1. Data preprocessing refers to the process of polygonization, smoothing, decimation and registration. the flow and main steps of data preprocessing are described here. several specific cases, for example the sampling method based on chordal deviation, the feature based registration, are discussed

    本文研究和討論了點雲預處理的基本流程和主要步驟，研究點雲光順的高斯濾波，中值濾波和平均濾波方法、點雲精簡的弦高差演算法和多視點雲特徵對齊的方法。
  2. The assembly language program collects and processes the data real time. comparing kinds of method of filter and arithmetic of fft, the author select the fir filter to realize pretreatment of signal and radix - 2 fft to distill the characters of librations

    通過對各種濾波方法和fft演算法進行比較，本套數據檢測和校準處理系統採用fir濾波對採集到的信號進行預處理，利用基2fft演算法來提取信號的頻率特徵。
  3. Secondly, the steps of the glass ' s image processing are discussed in detail. based on the experiments and the characteristics of interference fringe, we pre - process the images with median filter and image segmentation with dynamic threshold. after marking and thinning the resulted fringes, we analyze linearly the unifor mity of product ' s samples with the characteristics of the framework

    然後，結合檢測系統中玻璃干涉圖像處理的任務，詳細介紹了處理的各個步驟：通過實驗比較，並結合干涉條紋圖像的特點，選擇中值濾波、動態閾值分割等技術對圖像進行預處理；然後對獲得的二值條紋進行標記、細化，提取條紋骨架；最後，用骨架的特徵進行線性分析，識別條紋的類型，判斷玻璃樣品的均勻性。
  4. Backward prediction error filter

    反向預測誤差濾波器
  5. Combining with the performances of danshan bridge, discussing the methods on the construction controlling and calculation of cable - stayed bridge, this paper raises an efficient construction controlling system, and realizes collecting construction data of the real bridge and technical information. by analyzing on the difference of theoretical calculation and real construction state, the author determines to take self - adapting construction controlling method which uses kalman filter method to identify and adjust construction parameters. by getting rational construction state from forward iteration method, this paper, taking concrete creep effect in consideration, raises a rational scheme to pre - remain deformation and adjust cable force

    結合丹山橋的結構特點，通過對斜拉橋施工控制及結構計算方法的探討，提出了有效的施工控制系統，實現了對實橋施工數據和技術信息的採集；通過分析理論計算與實際施工狀態的差異，確定了以卡爾曼濾波法作為施工參數識別與調整的自適應施工控制方法；通過正裝迭代法確定其合理施工狀態，並考慮混凝土的徐變效應，提出了合理的預留拱度和索力調整方案。
  6. The adaptive front - end has the adaptive ability for the magnitude and frequency of input signals. it can prefilter for the input signals, eliminate the useless signals, and improve the dynamic range of receiver system. it can lessen the burden of digital signal processing in the back - end of receiver, and improve the performance of receiver system

    自適應接收機前端對輸入信號有自適應能力? ?頻率自適應和幅度自適應，這樣的前端就可將系統的接收中心頻率和帶寬自適應到輸入信號的頻率和帶寬，其實就是對輸入信號進行一次預分選、預濾波，剔除對接收系統毫無作用的信號;同時對大信號自動減小增益，對小信號增加增益，提高系統的動態范圍;而且可以對干擾信號進行壓制。
  7. It discusses motion - detector response to narrow - band image motion and to broadband images. studies show that the motion - detector can provide velocity estimates in organism ' s natural visual environment, and physiological prefilters can improve determination of velocity of moving image

    研究表明：運動檢測器可以精確檢測多頻譜自然圖像速度，在運動檢測器前增加生理學預濾波環節可以改善圖像運動速度的估計。
  8. Design a kind of sub - optimum digital prefilter. through the simulation of timing recovery loop which is n ' t added prefilter and which is added prefilter, discuss the convergence characteristic and compare the relation between timing jitter and signal to noise ratio, the relation between timing jitter and noise bandwidth of loop, the relation between symbol error ratio and signal to noise ratio

    通過對加預濾波器后的定時恢復環的模擬，討論了環路的收斂情況，比較了所設計的數字預濾波器和無預濾波器時環路定時抖動與信噪比、定時抖動與環路噪聲帶寬、誤碼率與信噪比的數量關系，證實所設計的數字預濾波器對減少定時抖動非常有效。
  9. These results prove that the design method has great affection to reduced timing jitter. at the same time, simulate the convergence characteristic of timing recovery loop which is added prefilter when the input qam

    同時還模擬了加預濾波器后定時恢復環路在有載波誤差、交叉串擾情況下的收斂情況，證明了所設計定時恢復環路是正確的。
  10. The orthogonal quasi - interpolation filter preserving approximation order designed by hardin and roach maintain the orthogonality and approximation order of central filter bank and give a proper direction in the design of prefilter

    Hardin和roach設計的具有逼近階的正交擬插值預濾波器保持了中心濾波器組的正交性和逼近階，為預濾波器的設計指出了一條正確的方向。
  11. Signal forming and different demodulation of gmsk baseband signal are mainly discussed in the dissertation. gauss filter, phase integral, sin table, matched filter, calculate angle, bit - synchronization 、 output filter 、 a / d 、 d / a and etc of gmsk baseband signal are carefully studied through software emulation in systemview environment. the modulation and demodulation of gmsk baseband signal are carried out by the way of using tms320vc549 of ti to integrate software and hardware

    本文重點討論了gmsk基帶信號的形成以及gmsk基帶信號的差分解調，系統在systemview的環境下進行了軟體模擬，通過對系統的模擬工作，仔細的研究了gmsk基帶信號的高斯預濾波器、相位積分、 sin查表、匹配濾波器、相角計算、位同步、幀同步、輸出濾波、 a / d和d / a等。
  12. It is impotent to design the prefilter which maintain the orthogonality and approximation order of central filter bank

    在預濾波器的設計中，能夠保持中心濾波器組的正交性和逼近階是非常重要的。
  13. Design of prefilter of multiwavelets was discussed. for the prefilter designed by xia with interpolating property of ghm multiwavelet, a modified interpolating prefilter was presented

    針對于xia等基於ghm多小波的插值特性而設計的預濾波器，我們給出了一個改進的插值預濾波器。
  14. The advantage and disadvantage of the method of azimuth pre - filtering and undersampling and the method of subaperture processing are compared

    比較了方位向預濾波降采樣方法與子孔徑處理方法各自的優缺點。
  15. Two - dimensional frequency estimation based on nonlinear prefiltering in frequency domain

    二維諧波頻率的頻域非線性預濾波估計方法
  16. Finally, the author argues that prefiltering a discrete signal is a necessary step before using unbalanced multiwavelets. in this thesis, the author applies orthonormal perfiltered and first - order balanced multiwavelet to the compression of ecg data respectively. by using orthonormal perfiltered we can acquire a better result than by using first - order balanced multiwavelet or by using single wavelet

    對多小波而言，在變換之前對離散信號進行預處理是必須的，我們分別採用正交預濾波和一階平衡后的提升多小波對心電信號進行壓縮，正交預濾波的效果好於一階平衡，也好於一般的單小波。
  17. Design of real - time transmitting system for smart antenna mobile terminal

    地面快視處理器距離預濾波的設計實現
  18. The image registration was discussed the following three steps : initial registration, pre - filtering, sub - pixel registration. an adaptive range - filtering algorithm was proposed, which filters the different parts of object spectrum in master and slave synthetic aperture sonar images

    干涉sas復圖像的配準按實際信號處理過程分三個步驟論述：初配準、頻譜預濾波和子像素級配準，其中針對預濾波提出了一種自適應的距離向頻譜濾波方法。
  19. Because the qam signal which is small roll - up factor has big timing - error jitter in steady state that result in big timing jitter, an expression of impulse response for digital prefilter is deduced and a kind of sub - optimum design method for digital prefilter is proposed in this paper

    針對匹配濾波器滾降因子較小的qam信號的穩態定時誤差信號抖動較大，而造成較大定時抖動的情況。推導了一種用於減少定時抖動數字預濾波器的沖激響應表達式，並且提出一種數字預濾波器的設計方法，設計了一種優化數字預濾波器。
  20. We study the design of haar wavelet for scale = a ( a2 ) and present a decomposition and reconstruction algorithm in chapter 3. secondly, in chapter 4 we study the design of orthonormal mutiwavelets of multiplicity r with scale = a ( a2 ). by the factorization theory, we give parametric expressions for orthonormal causal fir multifilter banks of r = 2 and scale = 4, and we found the length of scaling function can be controlled by the parameters. finally, we provide the error analysis between discrete multiwavelet transform coefficients and continue multiwavelet transform coefficients

    由於多小波變換系數的計算是直接與其預濾波方式相聯系的，而在單小波變換系數計算中之所以能由近似表示就是因為尺度函數具有低通特性和平移正交性，由此我們研究了能滿足以上要求的預濾波，並對離散小波變換系數和連續小波變換系數之間的差異作了分析，從誤差分析結果我們可以預見：為了減少誤差我們可以通過對預濾波的進一步設計來控制。
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