linear-phase 中文意思是什麼
linear-phase
解釋
線性相位-
In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits
論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念，並以加速度模糊函數為分析工具，詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。 -
In this paper, a single - frame fringe analysis method is presented, in which subdivided fringe is modeled by linear phase and the coefficients are extracted by complex wavelet transform ( cwt )
摘要本文提出了利用復數小波變換對干涉圖象相位進行分塊線性擬合的一種新穎的單幀干涉圖象分析方法。 -
We design the qmf based on the criteria of minimum frequency bandwidth and the qmf that possess linear phase, and give a example of a signal decomposed and restructured. 4. in the research of channel dropping filters, we use 5 rank butterworth filter to approach the digital filter. we design lc unpower netwok and rc power network. we manufacture lc lowpass and highpass filter ， and test their performance ; we simulate the appliance of the channel dropping filters in the system
4 .在頻帶分割濾波器的設計方法中，用5階巴特沃斯濾波器逼近最小頻寬正交鏡像濾波器，對無源和有源濾波器進行了模擬設計；設計並製作了無源lc低通和高通濾波器，測試了它們的性能；並對分割濾波器在系統中的應用進行了計算機模擬。 -
The auto - spectrum is attached to linear phase, the amplitude - frequency drawing is got according to the arithmetic of bi - spectrum, then the equivalent is educed, the conversion relation is attained
該方法通過對自譜添加線性相位，根據雙譜的數值估計演算法計算獲得雙譜在三維空間的幅頻圖，通過推導雙譜與自譜估計演算法之間的等價關系以及所得的幅頻圖來實現兩者之間的相互轉換。 -
Linear phase prqmf banks is one of focal points in multirate digital signal processing domain, its general pr condition is deduced mathematically in the paper, which is important for further studying its design method, in addition high speed hybrid filter banks adc system, high effective hybrid filter banks adc system and high - speed - and - resolution time interleaved adc system proposed in the paper have practical value
線性相位prqmf濾波器組是當今多速率數字信號處理領域的研究熱點之一，本文從理論上推導出了其理想重建的一般規律，這對進一步研究線性相位prqmf濾波器組設計理論有重要意義。此外，本文提出的高速混合濾波器組adc系統、高效混合濾波器組adc系統、高速高解析度時問交織adc系統，均具有實用價值。 -
It consists of several parts as follows : in the first part, after an introduction of basic theory and history of filter banks, an analysis of lattice structure filter banks is given. the requirements of perfect reconstruction and linear phase are discussed and some constrains of filter length and symmetry property are analyzed in details. besides, relative designing practice and examples are given
論文的工作主要有如下幾個部分：第一部分，我們介紹了子帶濾波器組的基本理論和發展情況，研究了格型結構濾波器組，討論了其完全重構條件和實現線性相位的要求，並詳細分析了在實現完全重構線性相位格型濾波器組時濾波器的長度和對稱性約束，討論了優化設計的方法，並給出了例子。 -
The paper gives two ways to solve the phase synchronization, which is a key technology to bistatic sar, namely direct synchronization and indirect synchronization. meanwhile, the paper also studies the affection of linear phase error, quadratic phase error and sine phase error which are engendered by the method mentioned of the paper upon imaging
相位同步問題是雙站sar的一個關鍵技術問題，本文提出用直接同步法和間接同步法解決，並著重討論了兩種方法中可能出現的一次相位誤差、二次相位誤差、正弦相位誤差對成像的影響。 -
Because multi - band wavelet can describe signal more delicately and more compactly than two - band wavelet, and multi - band wavelet can be derived from the infinite iteration of multi - channel filter banks. by means of a detailed discussion for a effective design method of linear phase pr iir filter banks, the author obtain that the method is only fit for two - channel filter banks, but ca n ' t be extended to arbitrary m - channel ( m > 2 ) filter banks
由於m帶小波比2帶小波分析信號更細致、更緊湊，而m帶小波可由迭代的m通道濾波器組獲得，所以本章分析了一種兩通道線性相位完全重構無限脈沖響應濾波器組的有效設計方法，希望可推廣用於m （ m 2 ）通道。 -
In part four, a new method of design linear phase filter banks with sopot ( sum of powers of two ) coefficients is presented on the basis of perfect reconstruction lattice structure filter banks
第四部分，在完全重構線性相位格型濾波器組的基礎上，我們提出了一種設計無乘法的線性相位濾波器組的新方法，實驗證明該方法是有效的。 -
Based on the design methods above, we research the possibilities of build nonuniform filter banks with linear phase in the third part, pointing out the difficulties may occur and bringing up our ideas
第三部分，我們在上述兩種子帶濾波器組設計方法的基礎上，探討了構造非均勻的線性相位濾波器組的可能性，指出了存在的困難，提出了構造的設想。 -
Abstract : in order to process signal in depth and to extract the fault feature from original signal in machinery diagnosis ， the graphical display algorithm that can keep the data length of wavelet transform results the same as that of original signal is used. the fault diagnosis of a bend axial piston pump via b - spline wavelet that has linear phase is provided. the results of study demonstrate that the new method has excellent feature and the weak fault signal can be extracted from the strong vibration background of the pump
文摘:採用具有線性相位的b樣條小波，應用圖形顯示演算法並結合小波變換快速演算法將信號分解到不同的頻帶上，且分解結果和原信號長度保持一致，可對信號進行深層次的處理，克服了傳統的信號處理方法不易提取微弱信息的不足.通過對礦用斜軸式柱塞泵振動信號的分析，分離出了配流副磨損、球鉸松動、缸體及泵軸支撐軸承的故障特徵，為液壓泵的故障診斷提供了依據，並為信噪分離、微弱信號提取及設備的早期故障診斷提供了一條有效途徑 -
In linear phase, the material is considered as isotropic. in nonlinear phase, the material is considered as anisotropic. the result is compared with the data on - the spot
而在非線性程序中則將砌體和混凝土均考慮為正交各向異性材料，採用非線彈性本構模型，計算結果與實際有出入。 -
This paper presents a model of cosine basis functions neural network based on bp algorithm, discusses the relation between the algorithm of neural network and amplitude - frequency characteristic about the linear phase fir filter, introduces the convergence condition of neural network algorithm, and studies the optimal design example about the high - order fir double - band - pass filters
提出了一種基於bp演算法的正弦基函數神經網路模型及演算法的收斂條件，研究了該神經網路演算法與fir線性相位濾波器幅頻特性的關系，給出了高階雙通帶濾波器的優化設計實例。 -
3. the methods to improve and enhance the performance parameters of frequency synthesizer, such as phase noise and frequency stability, are discussed detailly and deeply through the linear phase model of pll which is using to implement the
3 .利用鎖相環路的線性相位模型，詳細討論了利用鎖相環進行頻率合成時，頻率合成器的主要性能參數如相位噪聲和頻率穩定度的改進方法。 -
The principle, structure and characteristics of the adc system has been discussed and studied, the main conclusions and contributions include : the general perfect reconstruction ( pr ) condition of linear phase prqmf banks is deduced mathematically, which consists of combination relation between analysis filter ' s odd length or even length and its symmetry or antisymmetry, relation of analysis filters " lengths and relation of the coefficients among different analysis filters
從理論上推導出了線性相位prqmf濾波器組理想重建的一般規律，該規律表現為分析濾波器組中： （ 1 ）濾波器對稱性及其長度奇偶性的組合關系； （ 2 ）濾波器的長度應滿足的關系； （ 3 ）非同一濾波器的系數之間應滿足的關系。 -
Phase - shifting errors have a great influence on the measuring - accuracy. a few of algorithms have been developed to solve linear phase - shifting errors, but ca n ' t solve the problem of random phase - shifting errors. an iterative least - squares fitting method has been proposed by in - bok kang to solve random phase shift errors in each interferogram
在這種方法中相移的誤差對測量結果的準確性有較大影響，雖然已經出現了不少演算法能解決線性相移誤差，但要解決相移過程中的隨機相移誤差問題，還存在一定的困難。 -
The algorithm for the construction of two - dimensional finite wavelet filter with linear phase
構造二維正交緊支撐線性相位小波濾波器的遞推演算法 -
This essay researched the design of linear phase fir shaping filter based on field programmable gate array ( fpga )
本文研究了利用fpga設計線性相位的fir成形濾波器。 -
Be different from orthogonal wavelet transform, biorthogonal wavelet transform has linear phase and can reconstruct signals exactly
與正交小波變換不同的是，雙正交小波變換具有線性相位特性，可以精確地重構圖像。 -
This paper discusses the design and applications of filter banks, with emphasis on design of linear phase perfect reconstruction filter banks and its application in image denoising
=本論文主要研究了子帶濾波器組的設計方法，尤其是具有線性相位特性的完全重構濾波器組的設計，以及完全重構的子帶濾波器組在圖像消噪中的應用。
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