抖動器 的英文怎麼說
中文拼音 [dǒudòngqì]
抖動器
英文
kicker-
This paper introduces the principle of the frequency division and presents the circuit design of the decimal frequency divider based on fpga. the vhdl language is used for the programming
摘要介紹了一種基於fpga的小數分頻器的分頻原理及電路設計，並用vhdl進行編程實現，並對這種小數分頻器的抖動進行分析和計算。Eleb - v electromagnetic relay contact jitter tester
Eleb - v電磁繼電器觸點抖動監測儀Low distortion oscillator am fm radio band digimarscope vtr jitter meter
低失真振蕩器am fm收音機用掃頻儀vtr抖動測試儀Thirdly, the paper discusses the driver of the peripheral equipment, how to port the uc / os - n and uclinux, h. 323 protocol and the application of the system in the digital speech classroom. also some software and hardware measure are adopted to enhance the system stability. at last, the shortcoming and the something to be improved are given. dsp can be used to realize real - time speech coding algorithm, and after porting ( ac / os - n, arm can manage the keyboard, the lcd and the ethernet peripheral etc. then the embedded network system with specific purpose can be used in others fields, such as pda, set of top, web tv, ect
在實際設計實現中，為提高系統軟、硬體整體穩定性和可靠性，使用了以下幾種方法： （ 1 ）低電壓復位、抗電源抖動能力、增加時鐘監測電路、抗電磁干擾能力、散熱等技術； （ 2 ）多層pcb設計，線路板結構緊湊，電源部分採用數字5v 、 3 . 3v 、 3v 、 1 . 8v和模擬5v多電源供電； （ 3 ）選用表面貼和bga封裝的器件； （ 4 ）按照軟體工程的要求進行系統分析，規劃系統框圖、流程分析、模塊劃分，減小了不同模塊的相關性，從而最大限度避免了錯誤的發生。Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100
論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上，簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理，對兩種測量方法存在的問題及誤差進行詳細分析和比較；針對位相解包裹錯誤點的傳播問題，作者通過改變解包裹路徑來提高位相解包裹的正確性；分析討論從解包裹位相（ x ， y ）到再現物體的高度h （ x ， y ）物理量之間的關系，研究相應的演算法，利用matlab平臺，對實際採集的條紋圖像進行處理和輪廓重構，其中改進及創新工作主要表現在以下兩個方面： （ a ）針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響，提出了一種用條紋穩定器穩定干涉條紋，用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法，建立了相應的測量系統，系統的條紋穩定可以達到。The technology of alternating - current - boosting by way of constant current is successfully used to charge capacitors with 25 kilojoules of energy in only eight seconds. rail - gap switch with performances of long life and highly steady state are designed. and the high voltage pulse generator, which can produce low - excursion and fast - rise pulses, are designed by using double trigger circuit and hydro - thyristor as switch
在大功率恆流充電技術上，成功的應用了交流調壓式恆流技術，可以在8s內讓電容器儲存25kj的能量;設計出了長壽命、高穩定的軌道開關;採用氫閘流管做開關，使用雙觸發電路，研製出了低抖動、快前沿的高壓脈沖發生器（點火機） ;採用單片機和pld ，研製出了精度為10ns的延時同步機。For the characteristic of low frequency movement of the target and high frequency system line - of - sight jitter, basic theory of compound axes line - of - sight stabilization system with line - of - sight pointing reference unit ( lospru ) is analyzed
依據目標低頻運動和儀器視軸高頻抖動的特點，分析了使用視軸瞄準參考器的復合軸視軸穩定系統的基本原理。Oscillator generated a wave with frequency 132 khz as the clock signal
振蕩器電路產生一個頻率在132khz附近抖動的矩形波作為整個電路的時鐘信號。Based on the analysis of transistor amplifier noise model, we select devices with low noise in reason. and the method how to reduce phase noise and phase jitter is also discussed
依據晶體管放大器的噪聲模型分析合理選擇了低噪聲的元器件，對降低相位噪聲和相位抖動的方法作了一些探討。Study on the laser scanner is very important since fluctuate of rotating speed of the motor, wobble of the shaft of the laser scanner, tremble introduced by motor changing phase, shake generated out of dynamic balance, turbulence introduced by the deflector rotating at high speed have an influence on rotating shaft and light beam so as to decrease quality of the laser imagesetter
轉速的波動、掃描器主軸的晃動、電機換相過程中的抖動、動不平衡產生的震動、轉鏡高速旋轉產生的湍流對轉軸和光束的影響等諸多因素，直接影響激光照排的質量。所以，對轉鏡式激光掃描器的研究有十分重要的意義。Lc oscillators have better phase noise, but the lowest noise is obtained with the use of a quartz crystal oscillator
Lc諧振器利用石英晶體振蕩器產生基準源，因此抖動較小。Study of low jitter and small drift switch pulse generator
低抖動小漂移開關脈沖發生器研究We have also demonstrated that the interactions between optical fiber solitons can be fully suppressed by super - gaussian sliding - frequency filters. computer simulations have shown a good agreement with theory
並且，通過與傳統的濾波器相比較，超高斯滑頻濾波器能更好地控制孤子的時間抖動。By solving the nonlinear schrodinger equation with perturbation method and computer simulations, we have demonstrated that super - gaussian sliding - frequency filters are more effective to reduce timing jitter than conventional sliding - frequency filters without sacrificing the signal - to - noise ratio
通過求解非線性薛定諤方程和數值模擬，我們認為超高斯滑頻濾波器能很好地控制孤子的時間抖動和相互作用。Cd dvd jitter meter calibrator
Cd dvd抖動儀調校器Because popular simulative tools can not test the output jitter of the oscillator, so with the help of the previous research, we estimate the jitter of the oscillator
由於目前較為普遍的模擬工具沒有提供對振蕩器的輸出抖動進行測試的方法，因此本文在前人的研究基礎上，採取了估算的方法，對弛張振蕩器的輸出抖動作了初步估算。Magnetoelectric sensor is a kind of non - contact sensor and has some useful characteristics, such as non - contact, high response frequency, low power waste, high reliability, long life - span and etc
磁電傳感器是一種非接觸式傳感器，它具有無觸點、無開關瞬態抖動、響應頻率高、低功耗、高可靠性和長壽命等特點。The main technology characteristics are : work method as slow speed wire cut machine with multi cut function to raise the precious and surface quality, high effective stripe auto recovery function. all controls and programs are under windows2000 operation system
線切割機床的主要技術特點：按慢走絲加工方式加工，具多次切割功能，提高產品光潔度具智能條紋覆蓋功能，可高效切割無條紋工件加裝耐磨導向器，減少運絲抖動全部編程式控制制在window2000下完成。Melp vocoders utilize mixed pulse and noise as the excitation to elimate the buzzes in traditional lpc vocoders, and add a jitter voicing state to overcome the tonal noise. parameters " interpolation, adaptive spectrum enhancement and pulse dispersion also are adopted to improve the continuity. the synthetic speech of melp vocoders sound much more natural and perceivable than the traditional vocoders "
Melp聲碼器採用混合脈沖和噪聲激勵解決了經典lpc的嗡嗡聲的問題；引入了抖動濁音狀態以克服音調噪聲；利用參數插值、脈沖散布和自適應譜增強等措施提高合成語音的自然度和可懂度；此外還採用了多帶激勵，使其具有了比較強的抗背景噪聲的性能。4. through using the concept of logic balance, a high performance telecommunication switch network test chip is accomplished by using xilinx virtex 300e - 6 and the working clock frequency is up to 125mhz. this chip can give an exact test for the network delay time, throughput, network delay time dither, rate of errors and lost data
4 ）結合邏輯平衡的思想，採用xilinxvirtex300e - 6器件，為一家著名的通訊技術有限公司設計了速度達125mhz的交換網測試晶元，能夠對交換網的吞吐率，網路延時，網路延時抖動，數據包錯誤率，包丟失率等進行嚴格的測試，並根據當前網路的流量大小自動調節網路負載。分享友人