數位過濾器 的英文怎麼說

中文拼音 [shǔwèiguòlǜqì]
數位過濾器 英文
digital filters
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 濾 : 動詞（除去液體雜質） filter; strain
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 數位 : numerical digit; digit; place; digit position
  • 過濾器 : absorber
  • 過濾 : [工業] filter; filtrate; screening; colation; filtration; filtering; lautering; colating; straini...
  1. The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested

    在理論分析的基礎上，提出了以下的實用技術： 1 ）用譜分析方法從截獲的信息中自動提取同步信息； 2 ）用積分投影、微分定位的方法進行相位檢測，實現可靠的鎖相和電子穩像； 3 ）將電子穩像技術用於重加濾波和梳狀濾波的濾波方法，改進了濾波效果； 4 ）通過檢測圖像信息熵實現圖像採集參數的自動調整，改進了圖像採集的質量； 5 ）設計了用於儀器定標的標準測試圖，可以對泄漏信息進行定量檢測。
  2. At first, the paper confirms singular area by singular detection, then designs a series of low - pass filters that have different templates according to the different position in finger image for a local area, at last sets up gabor filter parameters according to the characteristics of fingerprint image. the improved enhancement algorithm has a better robust, and can preserve texture structure of singular area effectively. in binary noise clearance, the paper presents an algorithm that clears the biggish white speckles and black speckles

    在指紋圖像增強方面，本文針對傳統的基於gabor濾波器指紋圖像增強演算法魯棒性差以及通常會改變奇異區紋理結構的缺點，對原有演算法進行了一些改進:首先通過檢測奇異點確定奇異區，然後根據局部區域在指紋圖像中的位置構建相應取值方式的低通濾波器並對該局部區域方向圖進行濾波，最後根據指紋圖像紋線的特點對gabor濾波器參數進行設置。
  3. The signal accesses the microprocessor and undergoes internal a / d transformation, data procession and filtration, then directly drives the digital luminescence tubes to display the concentration of the detected methane and send out an acousto - optic alarm and show low potential detection

    此信號進入微處理器經過內部a / d轉換、數據處理、濾波之後直接驅動發光數碼管顯示出被測甲烷的濃度，並給出聲光報警、低電位檢測等。
  4. Using piezoresistive accelerometers and magnetoresistance sensors measure the dynamic acceleration and geomagnetic field and through avr mcu software to calculate the attitude angular and azimuth. the fact of affecting the module is discussed in detail in this report and put forward the resolving scheme of key technology of digital filter, linear compensation, temperature compensation and magnetic field adjustment. the digital module has advantages of small size, light weight, low conception, high accuracy, all solid state and high reliability

    本課題採用壓阻式加速度計和磁阻傳感器分別測量重力加速度和地磁場，通過avrmcu軟體解算出姿態角和方位角，課題詳細分析了影響模塊性能指標的因素，就數字濾波、線性補償、溫度補償、磁場修正等關鍵的技術問題提出了可行的解決方案，研製的數字化模塊具有體積小、重量輕、低功耗、精度高、全固態、高可靠等特點，所有性能指標均滿足設計要求，為姿態角測量提供了有效的手段。
  5. An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process

    飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力
  6. A part can be located rapidly in a huge assembly tree by its attribute information, thus the part can be edited in design context. at last, author develops a set of tool with ug / open application programming interfaces and menu tools. using the tool, visible parts in a view can be selected automatically and invisible parts can be blanked or closed automatically according to user ' s requirement

    快速操縱大裝配，利用組件過濾器和控制開關快速打開大裝配，減少大裝配的打開時間；利用組件的屬性信息操縱大裝配樹，快速定位查找裝配體中某一組件以便在裝配的上下文中編輯組件，修改組件的設計；最後利用ug的介面函數和菜單定義工具二次開發實現了大裝配體在某一視圖中可見組件的自動選取，自動隱藏或關閉不可見組件，減少了內存中加載組件的數量，能在某一視圖中快速操縱大裝配。
  7. A method of pitch mark determination for a speech, includes : acquiring a fundamental frequency point and fundamental frequency passband signals by using an adaptable filter ; detecting a number of passing zero positions of the fundamental frequency passband signals ; and generating at least a set of pitch marks from a number of passing zero positions

    一種決定語音音高標記的方法，系藉以找出一語音之一組音高標記，此決定語音音高標記的方法系利用一可適性濾波器取得一基頻點與一基頻帶通訊號；求取基頻帶通訊號之復數個過零點位置；然後經由復數個過零點位置產生至少一組音高標記。
  8. In this paper, we discuss a kind of filter generator whose filter functions have less input bits than the degree of the linear feedback shift register ( lfsr ). by analyzing the structure of the filter generator and its equivalent system, we give out a conditional search algorithm ( csa ) to attack this kind of filter generators

    針對濾波函數f （ x ）的輸入比特數m少於線性反饋移位寄存器級數n的濾波生成器，本文通過分析其等價的組合生成器的結構，以及不同節拍上驅動序列的各個符號之間的制約關系，給出了廣義解序列的概念，並提出了類似遍歷二叉樹的條件搜索演算法csa ，用於攻擊該類特殊的濾波序列。
  9. We encoded and optimized the filter to design the algorithm for filter. computer simulation of complete simulation has demonstrated that the new filtering technique can significantly not only reduce the width relative deviation and the area relative deviation of the image, but also improve the resolution and the focal depth. it provides directive basis for the development of the experiment and the practicability of the technology

    計算機模擬結果表明，通過在非瞳孔面的適當分數傅立葉變換面上加入優化設計的位相型濾波器，可有效減小光刻圖形的線寬偏差和面積偏差，提高成像系統的解析度和焦深，為分數域濾波改善光刻圖形質量實驗的開展和這一解析度增強技術走向實用化提供了指導依據。
  10. We also select the microchip pic16f877 made by microchip co. ltd as a control chip to realize micro - computer control. this system use three separate channel to find out the " across the zero point " of each back - emf. the program use digital filter to wipe off the pwm interferences and the commutating interferences

    系統中採用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點，同時在軟體中採用數字濾波以消除其它噪聲干擾，使檢測電路檢測到的反電勢過零點更加準確可靠，實現了對五位置傳感器直流無刷電機的數字控制。
  11. By analyzing the refraction 、 reflection process of fault transient current traveling wave of high voltage and characteristics of refraction 、 reflection coefficient systematically, a new fault location method of single ended traveling wave is presented. it can not only identify the reflection wave for fault location efficiently, but also not be affected by the structure and length of line. fault earthed resistance 、 fault type 、 system impedance and can locate fault in adjacent areas accurately

    論文深入地分析了高壓線路故障暫態電流行波的波折、反射過程以及折、反射系數的特點，提出了新的單端行波故障測距方法，它不僅能夠有效地識別出測距所用的反射波，而且幾乎不受線路結構、長短、故障接地電阻、故障類型、系統阻抗的影響，在近區仍可以準確地進行測距；同時模擬阻波器的特徵，設計了低通數字濾波器，對通過了低通數字濾波器的暫態故障電流行波再次進行小波分析，並利用本文提出的單端行波故障測距方法進行故障定位，結論是所提出的測距方法在實際應用中仍是有效的。
  12. Because die common fault detection method for sensors, residual x2 test, is insensitive to gradual - change - fault detection, a kind of residual x 2 test based on moving subnormal state is presented, and its validity is testified by mathematical simulation results, as shown in figures 5. 2 through 5. 5. with regard to the lag of soft fault detection, a kind of system reconstruction tactic based on hierarchic alliance structure of federal filters is proposed. mathematical simulation results, as shown in figure 6. 10, show the validity of isolating fault by using the tactic

    西北工業大學沁士學位論文們要一個研究指出常用的傳感器故障檢測方法?一殘差x 『檢驗法對漸變性故障檢測的不敏感性，提出一種基於移動偽正常狀態的殘差檢驗法，並通過數學模擬驗證該方法對漸變性故障檢測的有效性；提出一種基於遞階聯合濾波器結構的系統重構策略，並通過數學模擬驗證該策略對故障隔離的有效性。
  13. The whole processing procedure consists of three steps, i. e., inputting the noisy ap signal to a low - pass filter, constructing a corresponding square wave according to the output of the low - pass filter and then applying it to the wave forming filter to get noise free ap signal

    利用矩形波重建方法，將帶噪聲動作電位信號通過低通濾波器建立相應的矩形波，然後再採用計算機輔助設計法設計一個波形形成數字濾波器，使矩形波通過此濾波器后重建出純凈的細胞動作電位。
  14. We also utilize a kalman filler to encode a tracking history into state parameter of filter

    在跟蹤過程中，我們使用kalman濾波器對目標的位置歷史濾波，得到目標運動參數的估計。
  15. 2d continues gabor wavelets and levenberg - marquardt ( lm ) algorithm are used to automatically abstract features by optimize gabor wavelet ' s parameters of translation, orientation, and scale to make it approximates a local image contour region

    論文採用了二維連續gabor小波，通過levenberg - marquardt （ lm ）優化方法對小波濾波器的位置、尺度、方位等參數進行優化，使之與圖像的輪廓特徵一致，實現自動提取目標特徵的目的。
  16. Bsd packet filter ( bpf ) lies in the kernel of bsd unix, it is independent of the tcp / ip stack, and gives user mode processes a raw interface to access data link layer, it has been widely used in network monitors and other softwares, such as tcpdump

    Bsd包過濾器（ bsdpacketfilter ，簡稱bpf ）位於bsdunix的內核中，它獨立於tcp ip協議棧，為應用程序訪問數據鏈路層提供了一個原始介面，被廣泛地運用在網路監控及其它軟體中，如tcpdump 。
  17. In the fifth part we describe the procedure of amalgamating target and put emphasis on the research of target tracking method, by building up the moving status of target we can solve the problem of occultation. - - filter is adopted to predict next position of target so we can reduce the range of seeking matched target

    在跟蹤過程中，著重針對多個運動目標遮掩的情況，設計了基於運動狀態的識別和跟蹤方法，並利用常系數的kalman濾波器對運動目標的位置進行預測，解決了目標遮擋情況下的識別和跟蹤問題。
  18. Case 1 : when there is no relative measurement, each satellite uses its own on - board attitude sensors to determine its attitude, and exchange the information through the communication link between formation satellites, and then the relative attitude is determined through simple mathematical operation. case 2 : based on the range measurements of gps like sensors, using two - point measurement of the relative orbit state to establish relative orbit and attitude kinematics and measuring equations. and state estimation is achieved through the extended kalman filter technology and unscented kalman filter technology, respectively

    方案一，在星間無相對測量時，由衛星自身攜帶的姿態敏感器實現單星高精度姿態確定，利用星間通信鏈路進行信息交互，通過簡單的數學計算獲得星間相對姿態;方案二，利用類gps相對測量，建立了編隊衛星相對軌道運動和相對姿態運動模型及相對距離測量方程，推導了兩點相對軌道運動模型，設計了擴展卡爾曼濾波器及uscented卡爾曼濾波器，對相對位置、速度和姿態進行估計。
  19. Sigma delta modulation frequency synthesis is an advanced technology that applies in pll ( phase - locked loop ) frequency synthesizer, which could transform the spurs created by fractional - n synthesizers into phase noise that could be filtered by inherent low - pass identity in pll

    此技術應用-調制將鎖相環頻率合成器中分數分頻器產生的相位雜散轉化為相位噪聲，通過鎖相環本身低通濾波特性濾除，從而使用單環即可獲得很高頻率解析度和極低的相位雜散。
  20. On the basis of previous work, we developed a new data processing system by use of dsp & oop. the new system overcame the problems existed in the old data processing system successfully, such as the bug which cause program dead loop when the data is too long, and the frequency leak due to principle limit of fft filter. in addition, we eliminated the measurement error brought on by phase warp

    我們在前人的工作基礎上，利用現代數字信號處理技術和面向對象的軟體開發技術，統一了彈上黑匣子數據處理系統的操作平臺，完善了轉速、掃描角測試數據處理系統，修正了原有處理程序中的因數據長度過長而導致程序死鎖的bug ；利用有限沖擊響應（ fir ）濾波器，在濾去噪聲的同時，有效地解決了矩形窗fft濾波的頻譜泄漏問題；另外還解決了因相位偏差而導致的測試誤差。
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