頻率整形 的英文怎麼說

中文拼音 [bīnzhěngxíng]
頻率整形 英文
frequency shaping
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
  • 頻率 : frequency; rate
  • 整形 : [電學] reshaping; shaping; [冶金學] coning; [醫學] plastic; reforming; true up; profiling; topiar...
  1. Duo to the intrinsic characteristics of the gaas material, serai - insulating ( si ) gaas photoconductive semiconductor switches ( pcss " s ) have more obvious advantages in the performance of both high power and ultra - fast switching than those pcss " s made of other materials and then can be widely used in ultrahigh speed electronics, field of high power microwave generation and pulse forming ( pulse sources of high power ultra - fast electromagnetism, ultra - wide - band microwave generator )

    半絕緣gaas光電導開關( photoconductivesemiconductorswitches簡稱pcss ' s )具有兼備寬帶和高功容量特性,使其在超高速電子學和大功脈沖產生與技術領域(大功亞納秒脈沖源、超寬帶射發生器等)具有廣泛應用前景。
  2. Abstract : this paper first presents the general design framework of maintenance deployment system in wartime, and then studies the main design criteria : the whole responsiveness, component responsiveness and steadystate efficiency. based on the above, some basic deplyment forms are analyzed and the general design procedure is presented at last

    文摘:給出了設計戰時維修資源設置系統一般框架,提出了設計準則:體反應性、單元反應性和穩態;並運用以上準則對我軍現實活動中採用的幾種基本部署系統式進行了分析;最後給出了戰時維修資源部署系統設計的一般程序。
  3. Two simulation algorithms of realization channel characteristic are analyzed emphatically : shaping of slow fading with correlation and generation of frequency - selected multipath fading

    重點分析了實現通道特性模擬的兩種演算法:慢衰落的相關性選擇性多徑衰落。
  4. Through studying the working mechanism of the composing, the paper referred the bearing ' s analyzing model and designing flow. through shearing test of high damping rubber, the paper analyzes the influence of shearing shape, shearing strain range and inspiriting frequence on the characteristic parameters ( dynamic shear elastic module, dissipation engineering module, wasted gene ). according to the rule of equivalent energy, the paper gets the hysteretic curve of hdr ' s equivalent bilinear model and parameters ' calculating formula

    本論文通過對這種分離式減震支座各組成部分工作機理的研究,提出了該分離式減震支座體的計算分析方法和設計流程;通過高阻尼橡膠剪切試驗,分析了高阻尼橡膠剪切面狀、剪應變幅值、激勵和試件高度對特徵參數(動態剪切彈性模量、耗能模量、損耗因子)的影響。
  5. Oscillator generated a wave with frequency 132 khz as the clock signal

    振蕩器電路產生一個在132khz附近抖動的矩波作為個電路的時鐘信號。
  6. In this paper, ansys, the software on finite element analysis, is made use of processing the static and modal analysis on the preliminary models and its " modified ones. by analyzing the results, we can conclude that the stresses on the components of the modified models are tended to equilibration and the location of the branches " brace can also influence stresses and translations on the branches. in addition, the values of the intrinsic frequencies on modified models " are larger than the ones on preliminary models, but the ranges of the frequencies on both models are almost same

    傳統的弧閘門的支臂結構基本上都是三角架式的,這主要是因為按平面體系進行計算的傳統設計方法忽略了結構的體性及弧閘門的空間結構特點,設計得比較保守,而實際上,將其改為a型結構也存在可行性,本文是利用有限元分析軟體? ? ansys對原模型及修改模型分別進行靜態和固有的計算,通過分析比較其結果可知,支臂改為a型后會使閘門的體受力趨于均勻,即原模型受力大的部件其應力變小,而原模型受力小的部件其應力會變大;而且a型支臂的支桿在不同的放置位置對支臂的應力和位移變化也有一定的影響。
  7. 2 ) the value of base frequency, which is the first order vertical - bending vibration, is bigger in box girder bridges than those of t - beams. it shows that the vibration performance of box girder bridge is better than t - beams. 3 ) when considering the shear deformation of beam, the vibration frequency calculated by is bigger than those not considering the shear deformation

    T型梁的基為橫向振動,而體箱梁的基為豎向彎曲振動;體箱梁的一階豎彎振動的比t型梁得到了提高;體箱梁的動力性能優于t型梁;考慮剪切變后,梁的自振降低,對于體箱梁其降低值接近於5 ,在分析時不應忽略。
  8. The data access pattern is divided into exclusive and sharing, according to the pattern of access and update frequency of the data, three ways are adopted, i. e. the period, update counter and data state to dynamically adjust the frequency and content of data broadcast

    將數據的訪問式分為共用和獨占兩種,根據數據訪問式以及數據的更新,採用定時、計數以及數據狀態等三種方法,動態地調服務器廣播更新數據的和內容。
  9. Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology

    數字音功放技術是近年發展起來的高效放大技術,該放大技術採用了過取樣、噪聲等數字音處理演算法和開關功放大。採用該技術實現的電源調制器不但具備很高的效,而且能高指標地放大包絡信號,是常規的電源調制技術無法實現的。
  10. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了測量單元,根據pid調節各個環節的特點,以及調速器動態特性、靜態特性對測量的實時性和精度要求的不同,利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大、分電路,實現了水輪發電機組的測量;在軟體上,對微機調速器的個程序框架、並聯pid的離散化過程進行了分析,選用改進的pid演算法實現了變參數、變結構的pid調節模式;調速器的機械液壓隨動系統具有步進電機電液轉換元件,採用五相反應式步進電機,根據其驅動特性設計了變調壓驅動器,實現plc與步進電機驅動器之間數字介面。
  11. The contrasting colors of purple in the background, bright yellow in a heart, and red and dark brown in the border around the heart add an uplifting sensation to the painting like white clouds in the middle of the sky, going against earth s gravity to enter into the boundless cosmos. the viewer feels as if he is being upheld by an invisible power to be free from the influence of naked eye observation so as to hear the subtle vibrations resonating from the flickering colors found in each brush stroke of the enlightened artist. he is able to enjoy wonderful mysteries and feel fine tuned frequencies, which are indescribable in worldly language and not arguable by the earthly mind

    那些對比色:紫色的底金黃色的中心紅色棕色的邊,讓幅畫清爽流利,像天空中的一片雲突破地球引力奔向浩瀚宇宙,觀賞的人好像得到無力量的貫注,不再局限在凡夫的眼界,而能在那些水遇無痕的筆法布局中,用心傾聽出顏色的微細振動,從行雲流水的線條中,隱現出開悟神奇奧秘的享受,感受到那微細的高波段不可說的天籟。
  12. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題,尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的,但另外一些則有著嚴重的後果,會給入侵地的生物以至於個生物群落造成影響.本文總結了分佈區擴張的常見模式,概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑,來揭示伴隨擴張選擇和漂變在成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結,這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化(瓶頸效應及種群擴張) .最後,我們以歐洲櫟癭蜂(膜翅目,癭蜂科,癭蜂族)一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上,多態的等位酶位點上等位基因的數據表明: 1 )遺傳多樣性沿入侵路線呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性中心的作用; 2 )入侵地區的種群與該物種原產地的種群相比,遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  13. To solve it, the differential equation set is transformed by fourier transform and the dynamic differential equation in the form of matrix is educed. the calculation formulas of frequency response function of vehicle vibrating system, acceleration power spectrum density function are put forward

    用分析力學法建立車動力學模型,推導出以矩陣式表示的運動微分方程,並通過傅氏變換給出汽車動力學系統的響應函數、加速度功譜密度函數的計算公式。
  14. This paper establishes the linear model of hydro - turbine and deducts its transfer coefficients. then the optimized operation parameters are gained in the frequency disturbance and load rejection simulation. through comparing dynamically, this paper analyses the impact on its dynamic performance if some governing system parameter changes

    在研究小波動情時,即系統在穩定工作工況點附近小瞬變時,可以把非線性系統進行線性化處理;本文建立了水輪機調節系統的線性化模型,推導了其中的傳遞系數;對水輪機調節系統的擾動和機組突甩負荷工況進行了模擬試驗,定了最佳調節參數;通過動態比較,分析了調節系統參數改變對其動態性能的影響。
  15. At this time, the approximate mechanical model of devices has been put forward, which frequency is 70 mhz, then we analyzed the euler ? bernoulli equation, find that the frequency is determined by the resonator ’ s density thickness and length ; the free - free - beam 、 coupled beam 、 support beam 、 transducer have been designed ; the model was simulated and modal analyzed on the coventorware and were consistent with the designed parameter. the silicon surface microfabrication process was developed and emphatically introduced several key surface microfabrication technologies, and was simulated by coventorware

    本文通過分析歐拉-貝努立方程,得出濾波器的共振主要由諧振梁的密度、厚度和長度決定,考慮切變和轉動慣量的情況下,完成微機械諧振梁、支撐梁、驅動電容的設計;在coventorware軟體上進行模擬,分析結果與理論設計比較好地吻合;對微機械濾波器的加工工藝進行設計,給出器件的完的工藝流程,重點介紹微機械表面加工工藝,並在coventorware上進行模擬。
  16. To effectively use the best - effort network for transmission of real - time video in surveillance system, a mpeg surveillance system with adaptive video rate shaping was proposed in this paper

    摘要在視監控系統中,為了使用盡力而為型網路有效傳輸實時視信息,提出了一種基於自適應碼的mpeg視監控系統設計方案。
  17. Design procedure of u - shaped anti - rolling tank system is established, and program of scale design for tank is summarized, and an innovation selecting the natural frequency of controlled passive anti - rolling tank is put forward according to variation range of wave frequency, the natural frequency of rolling of a ship and other influencing factors, and causes of formation of tank damping and motion state of water in tank are studied, calculation formula of the u - tube tank damping and design method of tank damping configuration are given, and the influence of tank vertical location within the ship on ship parameters, stabilization performance of tank and water motion in tank is studied

    建立了完的u型減搖水艙系統設計程序;總結了u型減搖水艙尺度設計;提出了根據波浪變化范圍、船舶固有變化范圍和其它影響因素,選取可控被動式減搖水艙固有的新方法;分析了u型減搖水艙阻尼的成原因,給出了估算水艙阻尼和設計水艙阻尼結構的方法;研究了減搖水艙在船舶中的垂直位置布置對船舶參數、水艙減搖性能和艙內流體運動性能的影響。
  18. The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion

    我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡( nolm )相結合的方案來對信號脈沖進行壓縮,模擬顯示,在調節系統合適參數的情況下,波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功和適當時延下輸入soa時,最後可以得到放大的高質量超簡訊號光脈沖;在基於soa的交叉增益調制( xgm )全光波長轉換中,採用級聯的soa能有效地使反轉光脈沖的啁啾得到有效降低,波長向下轉換的距離和反轉光的峰值能量都得到明顯提高,降低了利用交叉增益調制( xgm )波長轉換中對波長精度的要求,從而提高了波長轉換的靈和性。
  19. This means that according to memorial frequency information the tabu length and the number of candidates are adaptively adjusted, and multitask parallel technology is realized through the arrangement of the search assignment

    將自適應機制和并行技術引入禁忌搜索演算法中,根據記憶信息自適應調禁忌長度與候選集規模,通過搜索任務並分配安排成多任務并行處理。
  20. The features of fire flame and other disturbing phenomena such as area variety, shape variety, edge variety, flame flicker frequency and the whole motion trend have been detailed studied in this dissertation. and the corresponding recognition algorithms have been given

    本文詳細地分析了火災火焰和其它一些干擾現象的面積變化規律、體變化規律、邊緣變化規律、閃爍規律和體移動趨勢,並且針對于每一種規律都提出相應的圖像識別演算法。
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