濾波傳遞函數 的英文怎麼說
中文拼音 [lǜbōzhuàndìhánshǔ]
濾波傳遞函數
英文
filter transfer function- 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...
- 傳 : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
- 遞 : Ⅰ動詞(傳送;傳遞) hand over; pass; give Ⅱ副詞(順著次序) in the proper order; successively
- 函 : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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Superficially it is quite safe to phase advance an accelerometer signal as the error signal has been filtered by the servo and the alrframe transfer function.
從表面上看,因為誤差信號已被伺服機構和彈體傳遞函數濾波,所以讓加速度計信號經相位超前網路是不會有問題的。This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。The experiment demonstrates that the simulated calculations are in good agreement with experimental results. the conception and algorithm simulation of lattice digital filter in electronics are transplanted into optical filter, with a novice algorithm to resolve optical lattice array concrete parameter
3 .將成熟的電子學里的格型數字濾波器的概念和設計演算法移植到光學濾波器,給出了根據目標濾波傳遞函數求解光格型陣列具體參數的演算法。Instead of adopting exterior matrix p ( s ) diagonal 1 or s, triangle 0 or as which the predecessors used, i employ the exterior matrix p ( s ) diagonal 1 or the structure of iir filter ( for convenience, s + i s employed ), triangle 0 or the structure of iir filter ( for convenience, a ( s + p ) is employed ). this method eliminate the element 1 / s in close transfer matrix whereas the predecessors ' s method carried
但該方法採用的p ( s )主對角元素為1或s ,下三角元素為0或s 。這樣,閉環傳遞函數就必定出現因子1 s ,不利於系統的穩定性與魯棒性。針對這個問題,本文提出一種改進的方法,可使外矩陣p ( s )的主對角上元素為1或iir濾波器的結構形式(為簡單起見,取s + ) ,下三角元素為iir濾波器的結構形式(為簡單起見,取( s + ) )或0 。According to the basic theory of iir filters, a scheme of hardware implementation is worked out combining with the fact that coefficients of numerator and denominator of transfer function are fixed and the structural feature of selected hdpld. from the clew of implementing a stratified , modularized and parameterized design , the thesis describes the hardware implementation of the iir filter with vhdl and schematic diagram design method. two examples that are iir notch filter and iir low - pass filter are given , the stability of filters and the effects of quantification of coefficient are also analyzed
以iir數字濾波器的基本理論為依據,結合濾波器的傳遞函數分子、分母系數固定這一事實和選用的高密度可編程邏輯器件的特點,確定了iir數字濾波器的硬體實現方案;按照層次化、模塊化、參數化的設計思路,採用vhdl硬體描述語言和原理圖兩種設計技術進行了iir濾波器的硬體設計;本文給出了iir陷波濾波器和低通濾波器兩個設計實例,對設計的濾波器都進行了穩定性分析和系數量化影響分析;最終將完成的iir濾波器的硬體設計配置到晶元中,並在製作的實驗電路中進行了實際濾波效果測試。By setting a amplitude filter ( module ) with certain transmission function in arrayed waveguides, we design optic signal add / minus. by changing the length of center arrayed waveguides, we design phase foil filter of awg ultimately, the present stage work are summarized and some future work are discussed
通過在陣列波導嵌入一定傳遞函數的振幅型濾波片(模片) ,設計了awg型光信號加減器;通過改變中心陣列波導的長度,設計了awg型相襯濾波器。Lqg / ltr at the plant output proceeds in two steps : 1 ) design a kalman filter with desirable performance specifications ; 2 ) design a sequence of lq - regulators to make the singular values curve of the open - loop transfer function gk approximate the curve of tfl
對象輸出端的設計步驟主要分為兩步: 1 )根據期望的性能指標設計一個卡爾曼濾波器,即得到目標反饋迴路; 2 )設計lo調節器使得系統開環傳遞函數gk的奇異值曲線無限逼近1 )中找到的目標反饋迴路的奇異值曲線。A filter whose transfer function is matched with the frequency spectrum function of input signal
其傳遞函數與輸入信號的頻譜函數相匹配的一種濾波器。This paper studies 3 kinds of algorithms : the viterbi algorithm, multiresolutional algorithm based on wavelet transformation and bayesian bootstrap algorithm. the viterbi algorithm is based on the hidden markov model theory and it is a kind of map estimation, this paper studies this algorithm and puts up an algorithm that suits for filtering in the presence of interference. multiresolutional algorithm takes full advantage of multiresolutional data, we can see it has a better filtering ability than the traditional filtering methods ; bootstrap algorithm is a recursive bayesian estimation, it describes the probability density function by the samples, so it can be used to nonlinear non - gaussion filtering, the simulation result of the two groundings is presented
Viterbi演算法以隱馬爾可夫理論為基礎,是一種最大后驗概率估計方法,本文對該演算法進行了研究,給出了一種適合於非高斯干擾條件下的濾波方法;多分辨分析方法充分利用到了多解析度測量數據所包含的信息,從模擬結果中可以看出,該方法的濾波精度要高於傳統的濾波演算法;自主濾波方法是一種遞推貝葉斯估計演算法,它利用采樣點來描述目標狀態的概率密度函數,因而適用於非線性、非高斯條件下的濾波,本文分別對這兩種情況下的濾波進行了模擬。Based on above performances the applications of multi - sensor data fusion in state estimation for maneuvering target is studied systemically. the main work includes : based on the analysis that the extreme value of acceleration presupposed causes influence in the “ current ” statistical model, a modified model is given, which utilizes the functional relationship between maneuvering status and estimation of the neighboring intersample position vector to carry out the self - adaptive of the process noise variance. then combining with the recursive characteristic of kalman filter, an improved self - adaptive filtering algorithm is presented
基於此,本文針對多傳感器數據融合技術在機動目標狀態估計中的應用進行了系統的研究,其主要工作如下: 1 、基於「當前」統計模型中加速度極限值的預先設定對于濾波效果影響的分析,利用目標機動狀況與相鄰采樣時刻間位置估計量變化之間的函數關系實現噪聲方差自適應,進而提出了一種修正的模型,並結合卡爾曼濾波遞推演算法,提出了一種改進的自適應濾波演算法。分享友人