穩定濾波器 的英文怎麼說

中文拼音 [wěndìng]
穩定濾波器 英文
stable filter
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : 動詞(除去液體雜質) filter; strain
  • : 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...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
  • 濾波器 : [電子學] electric filter; (electric) wave filter; filter
  1. Output can be obtain, next we use our designed the wavelet soft threshold to select result of the wavelet transform, finally, we give the selected result reversal wavelet transform. it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing. i give the donoho wavelet soft threshold a modified value method, which has a relation with ratio of signal - noise. i made full use of discrete hop field single feedback neural network, and nonlinear steady of automatic system at last, i obtained a steady limited ring, give the energy function an order differential a optimal

    我的思路是:改造現有圖形結構,先建立能反映信噪比大小且含待參數k的表達式,然後通過離散型h0pfi舊單層反饋神經網路,再結合前邊的混合構成一個非線性控制系統,寫出對應的網路函數,利用相平面法和李雅普諾大性的判據,得到一個的極限環,從而確出參數卜的范圍,進而再對原來的小軟閾值進行修正,用修正後的值作為小閾值。
  2. The second, the main work in the paper is discussed. they are include : the theory and character of electromagnetic leaking from a computer ; the theory of accumulation mean filter and pectination filter ; the analysis of synchronous signal precision, at 10 - 12 second level, for stably intercepting ; the technology requirement of receiver and data acquisition board for clearly displaying the images recovered from the intercepted data

    本文從計算機視頻電磁泄漏和數字兩方面的基本理論出發,詳細論述了計算機視頻信息電磁泄漏的原理及特點,指出視頻泄漏信息的頻譜是以行頻為周期的譜線;分析了重加和梳狀的性能;分析了視頻泄漏信息截獲的條件;推導出截獲視頻泄漏信息需要對同步信號的精度控制在皮秒級;論述了清晰再現對接收機和數據採集卡的技術要求。
  3. Our treatment shows in the raman effect case, mnls solitons, the same as nls solitons, keeps its energy, initial center and initial phase unchanged. however, the raman effect, not the same as nls solitons. reduces its amplitude, widens its width and under the same conditions, the self - frequency shift of mnls soltions is closer to the result of numerical simulation. in the raman effect together with frequency filters case, mnls solitons, the same as nls solitons, keeps initial center and initial phase unchanged and bandwidth - limited frequency filters can make the mean frequency of mnls soltion stand a steady value at the red side of the initial mean frequency, i. e. suppress the self - frequency shift of mnls soltions. and that, the other physical parameters of mnls soltion last stand a steady value. however under the same conditions, the steady value of the mean frequency of mnls soltions is closer to the initial mean frequency and the result of numerical simulation

    有所不同的是, raman效應雖然不改變孤子能量,但會引起孤子峰值的下降和寬度變寬,且在同一條件下, mnls孤子微擾理論得到的自頻移比nls孤子微擾理論得到的更接近直接數值計算結果。有限帶寬的頻率也不引起mnls孤子初始中心、初始位相的改變,選取適當的頻率參數值能使孤子的平均頻率在初始平均頻率的紅側一值,抑制了自頻移,而且孤子的各物理量最後都在一值,這些與nls孤子微擾理論都是類似的。有所不同的是,寬度為飛秒量級下, mnls孤子平均頻率的值更接近初始平均頻率,更接近數值計算結果。
  4. Abstract : in this paper a new identification model constructed by neural networks with modified inputs and stable filters is presented for continuous time nonlinear systems in order to reduce the inherent network approximation errors. an adaptive law with projection algorithm is employed to adjust the parameters of networks. under certain conditions, convergence of the identification error is proved

    文摘:在用神經網路進行系統建模時,建模誤差的存在是難免的.為了減小這種誤差,本文對連續時間非線性系統提出了一種新的神經網路辨識模型,它是由帶有輸入修正的神經網路和穩定濾波器組合而成.文中給出了權值的學習演算法,即權值是根據辨識誤差的投影演算法來改變,證明了在一條件下辨識誤差的收斂性
  5. The result shows that the solar radiation pressure moments play a mainly part. based on kalman filtering, three kinds of attitude determination algorithms were studied using the attitude sensor now available on the explorer : the first based on digital solar sensor ( dss ) and gyroscope when the star sensor is not available ; another based on dss, high - gain antenna ( hga ) and gyroscope when the explorer is in the earth - safe mode ; the third based on star sensor combined with gyroscope when the explorer is in the normal mode

    針對配置了典型測量敏感的深空探測,基於擴展kalman給出了其姿態確的方法:針對星敏感不可用情形,給出了使用太陽敏感和速率陀螺姿的演算法;針對安全模式下的對地向情形,給出了太陽敏感和高增益天線融合速率陀螺信息的姿演算法;針對正常巡航模式給出星敏感和速率陀螺聯合姿演算法。
  6. Equipment under test to the measurement terminal. the high pass filter output signal is switched from either conductor to the measurement terminal

    大體上講,電源阻抗網路從檢測設備eut向測試埠看,是一個高通
  7. The innovations consist of : synthetically restraining the filter ' s divergence, as effectively improved the filter ' s numerical stability ; a parallel filter structure is creatively designed to eliminate system biases ; and sprt method is used to control the adjustment of the noise statistics, so as to ameliorate the tracking performance of time - variant noises

    對常規的次優遞推sage自適應進行了改造,包括:對結果發散進行綜合抑制,提高了的數值性;採用并行結構,消除了結果偏差;應用sprt控制調整,增強了的動態跟蹤能力。
  8. This paper simulates the effect of voltage fluctuation inspection through the tool of matlab. and proves the filters ' s stability. in the part of self - checkout, pi ( proportional integral ) control arithmetic is put forward to check the gain k and the calculated results show the method ' s effectiveness. then many comparements toward pst are done in different realization methods such as different interpolation points classification number and sample frequency. though simulation and calculation we can see the designed flicermeter can meet our country ' s standands

    文中利用matlab對電壓動的檢測效果進行了模擬;並對涉及到的性做了證明;在自校驗部分提出了將pi (比例、積分)演算法用於數字增益k值的確,取得了不錯的效果;然後分別從取不同插值點、不同分級數和不同采樣頻率這幾個方面出發,對計算出的p _ ( st )值進行了比較。
  9. 5 a multi - thread software cooperated with smp ( 2 cpu ) hardware performs the image - preprocessing correlation and post - processing synchronously, thus an automatic working module is realized. 6 systematic designed software, including grabing sarnies constructing rfl diging roi, and trainning ann offline and inline modules, has passed the practical tests which indicates that the opr could reach the recogniton possibility above 85 % and decrease the false alarm in the environment of high noise low contrast and multi - objects. and these are proved stable and repeatable in statistics, and so an advanced progress toward practical systems is achieved

    6 、系統化設計的軟體,包括了樣本採集、參考庫構成、相關平面的roi採集,以及ann脫機訓練、 ann聯機運行的軟體功能模塊,在實時運行的測試結果中表明了該opr系統對處于高噪聲、低反差、多目標的惡劣條件下,對三維畸變目標的判識率( > 85 % ) ,降低了虛警率,並通過大量的實驗數據證明了該系統各項指標的性和可重復性(從統計意義上講) ,向實用系統邁進了一大步。
  10. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面: 1 、針對頻率選擇性衰落通道:結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法,與傳統方法相比,該方法計算量更小,收斂速度更快,性能更優,且對系統階次的過確表現健,具有實際均衡應用價值; 2 、針對時間選擇性衰落通道:提出一種基於迫零均衡的時間選擇性通道均衡方法,演算法結構簡單; 3 、針對時變色散通道:利用瞬態均值曲線提取通道時變信息,對之ar建模,利用卡爾曼跟蹤時變通道抽頭變化,可以快速跟蹤通道變化;基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法,提出了新的單輸入多輸出色散時變通道均衡與識別演算法,同樣具有對通道階次過確保持健的優點;結合小多解析度分析提出一種基於小模型的通道盲識別演算法;研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題,給出一種時變系統處理模型。
  11. The study reveals that all these two filtering can eliminate noise efficiently, they are reliable in the case that the strength of observed noise and seismic excitation estimated incorrectly in practice

    這兩種都能很好地去除觀測噪聲,對實際應用中可能發生的不正確估計觀測噪聲強度的情況,和不正確估計地震激勵強度的情況,兩種都是可靠的。
  12. When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system

    在探討可靠性設計與可靠性保障技術時,提出了石油測井儀的可靠性計算新模型,從電氣和機械兩個方面,提出並闡述了應採用的可靠性保障技術及其使用方法:根據最新可靠性理論,建立了石油測井儀的可靠性系統模型,探討了石油測井儀的可靠性指標及其獲取途徑,提出了推薦使用的石油測井儀可靠性指標( mwture , nolwnm , mtbf , mttf ) ;通過試驗,得到了所設計儀工作時間( mwture ) 。在研究數據處理方法時,闡述了伽瑪信號的特徵,對測量誤差類型進行了統計檢驗;介紹了數字的基本理論、數字方法的概況,並進行了分析;對伽瑪信號數字效果的影響因素及其對測井曲線的影響進行了基本分析;從獲取平段真值、地層邊界的檢測與處理兩個方面,建立了數字效果的評價準則( rvi , rmse , sfi ) ,給出了相應的數字方法及效果評價方法;探討了自然伽瑪信號數字的設計方法,提出了適合自然伽瑪測井的混合方案,探討了混合方案的實現途徑;通過對部分數字方法的量研究,給出了靈活可選的數字系統構成及實現流程;提出的三種方案,將用於era2000成像測井系統,對自然伽瑪測井數據進行處理。
  13. Firstly, while the nominal model is used, the filtering effect is very good. secondly, when the system model is n ' t definite, the filtered heading angle and rudder angle are steady in the error range. finally, when the complicated nonlinear wave model replaces the linear wave model, the filtering effect is also steady, and the estimate precision is high

    首先,模擬是在名義模型的情況下進行的,此時h _效果很好;其次,我們在系統模型具有攝動的情況下進行模擬,此時經h _后的航向輸出和舵令輸出基本能夠達到;最後,我們採用較復雜的非線性海浪模型代替線性海浪模型進行模擬, h _效果也是比較的,並且估計精度較高。
  14. Finally, the problem of exponential filters for nonlinear time - delayed systems is considered. the filters designed by using the given approach can guarantee the stead - state and transient performance. by choosing suitable attenuation index, the perfect performances of filters can be attained

    四、研究了一類不確非線性時滯系統的指數設計問題,提出了一種設計指數的方法,使用該方法設計的可以同時保證態性能和暫態性能,通過選取的衰減指數,可以使得具有良好的衰減性能,模擬結果很好地驗證了所給出的方法。
  15. In the paper a gmc filter with a cutoff frequency of 29. 8mhz is implemented. an effective improvement is made in cmfb ( common mode feedback ) through using a differential amplifier with four inputs. transconductors are tuned through comparing two voltages, which helps to stabilize the cutoff frequency

    文中實現了跨導電容,其截止頻率達到29 . 8mhz ;採用四輸入端的差分放大使共模反饋得到了有效的改善;通過簡單的電壓比較實現跨導的調諧,有助於截止頻率。
  16. The third, some groping researches are made on broadband coaxial line filter output circuit of klystron. a broadband output circuit - mode four coupling slots double - gap output cavity loaded with coaxial filter, which has a workable relative bandwidth bigger than 14 % and fits in with l - band multi - beam klystron, is designed. meanwhile some analysis of its stability and peak power capacity is made

    第三,對速調管同軸線寬帶輸出迴路進行研究和探索,設計出了一個適合用於l段多注速調管、相對帶寬超過14的四耦合槽模強耦合雙間隙腔加載同軸線輸出迴路,並對其性和峰值功率容限做了一些分析。
  17. 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,閉環傳遞函數就必出現因子1 s ,不利於系統的性與魯棒性。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的結構形式(為簡單起見,取s + ) ,下三角元素為iir的結構形式(為簡單起見,取( s + ) )或0 。
  18. 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數字的基本理論為依據,結合的傳遞函數分子、分母系數固這一事實和選用的高密度可編程邏輯件的特點,確了iir數字的硬體實現方案;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的硬體設計;本文給出了iir陷和低通兩個設計實例,對設計的都進行了性分析和系數量化影響分析;最終將完成的iir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效果測試。
  19. The dissertation presents the combined theoretical, numerical and experimental studies on the experimental modeling of the actuator, the design of test rig and control system, the modeling of two - dimensional airfoil aeroelastic system, the control design of active flutter suppression, and the effect of group delay in the digital filter on the stability of aeroelastic closed - loop system

    本文通過理論分析、數值模擬與風洞實驗相結合的方法,研究了超聲電機作動建模、翼段顫振實驗裝置和控制系統設計、二維翼段氣動彈性系統建模、顫振抑制控制律設計以及數字群時延對顫振抑制閉環系統性影響等問題。
  20. It can generate high - stable and linear current signal and utilize butterworth low pass filter to eliminate the noise and ripple in the signal. according to the different functions of different pins, this circuit can modulate and control the output power of the laser diode and modulate the laser signal, which makes this laser diode driver have more valuable application. in the last part of the paper, the feasibility of the theory is validated by experiment data

    其次,根據ic - wkn的內部電路和不同引腳的功能,設計了一套由d / a轉換和單片機組成的信號調節電路,使之能夠輸出具有良好的性和線性特性的電流調節信號,並選擇巴特沃茲低通除信號中的紋和干擾。
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