短周期計數器 的英文怎麼說
中文拼音 [duǎnzhōuqījìshǔqì]
短周期計數器
英文
mcc- 短 : Ⅰ形容詞(空間、時間兩端之間的距離小) short; brief Ⅱ動詞(缺少; 欠) lack; owe Ⅲ名詞1 (缺點) we...
- 周 : Ⅰ名詞1 (圈子; 周圍) circumference; periphery; circuit 2 (星期) week 3 [電學] (周波的簡稱) c...
- 期 : 期名詞[書面語]1. (一周年) a full year; anniversary 2. (一整月) a full month
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 數 : 數副詞(屢次) frequently; repeatedly
- 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
- 計數 : count; tally; counting計數卡 numbered card
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When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge
以75000km ~ 2的川中丘陵地區為試點研究區,繪制了該地區新模型的參數等值線圖,率定了不同設計頻率的改正系數,使設計者只需在地形圖上獲取集水面積,河道平均坡降和流域形狀系數,在參數等值線圖上查得橋涵所在地的相應參數,使用計算器即可迅速計算出設計流量,大大縮短了設計周期,且精度較高,設計的洪水流量一般低於傳統方法,從而可減小橋涵跨徑,節省投資。Fairly good chaos map, which is of high performance and be implement easily is selected. with the introducing of appropriate perturbation aimed to change the initial conditions, we may enlarge the chaotic sequence period under finite precision in practical applications. mixed chaotic model is constructed by combining logistic sequences and m - sequences in form of exclusive - or. and we, by adding two mixed chaotic model, constructed double chaotic system to generate the key generator, which provides with excerllent cryptographic properties
本文利用混沌技術,通過對混沌映射的選取,選取出了易於實現,且性能優良的混沌映射;通過初始參數的加擾,使有限精度下混沌的短周期行為得以改善;通過利用混沌序列與m序列異或構成了混合混沌序列,在混合混沌序列的基礎上構造出了雙混沌系統,從而提高系統的抗破譯能力,設計出了混沌序列密鑰生成器。As a result, this design accomplishs the function of circuit, which not only can satisfy the high speed image data transmission of large screen system and improve the performance of circuit, but also increase the flexibility of circuit design. in the design, it is possible to act hardware description language procedure according to the practical application demand, instead of revising hardware design of the circuit, which reduce the design cycle and the cost
所以,本課題運用可編程邏輯器件來完成電路功能,不僅能夠滿足大屏幕系統高速圖像數據傳輸對速度的要求,改善了電路性能,而且增加了電路設計的靈活性,設計中可以根據實際應用的需求靈活修改相應硬體描述語言程序,而不需要修改電路硬體設計,縮短了設計周期,降低了成本。It was demonstrated that this sort of load - control apparatus has superior performance. we used a electric transmitter as the transducer to collect the sound signal, using the daq toolbox of the matlab to achieve the collection of the sound signal, and using the dsp toolbox of the matlab and the sound - launch technology to analyze the time - domain characteristic and the frequency - domain characteristic of the signal, chiefly analyze its short - time average amplitude, its short - time over - zero ratio and its estimate of the power chart and the average - period chart
實驗中使用了駐極體話筒作為球磨機聲音拾取傳感器,利用matlab中的數據採集( daq )工具箱實現對磨音的採集,利用matlab信號分析( dsp )工具箱和聲發射技術對磨音進行時域和頻域分析,主要分析磨音的短時平均幅度和能量、短時平均過零率、功率譜估計和平均周期圖。On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數,還是在事故所造成的停電時間上都占據總量60以上。因此,及時了解斷路器的工作狀態對提高供電可靠性有決定性意義;並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法;提出了二次迴路保護器的概念,並將跳、合閘線圈完整性監視和二次迴路保護結合起來,給出具有完整性監視功能的二次迴路保護器實現方案;根據斷路器生產廠家提供的斷路器額定短路電流分斷次數,計算每次分閘對應的觸頭電壽命損耗,預測觸頭電壽命;提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法,並根據此時的負荷電流間接計算主觸頭迴路的電阻;在硬體電路設計上,採用美國ti公司最新推出的一種功能強大的單片機msp430 ,並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題;在通信模塊的設計中,解決了不同工作電壓晶元之間的介面問題,並給出了直接聯接的接線方案。Fpga has become the best selection in the design of complex digital system in modern design process of digital system, especially in communication system, because of its merits like high integration, better reliability, short design period, less investment and agility. the usage efficiency of fpga for communication system can be raised by designing low rate speech coder in fpga
在現代數字系統設計中, fpga因為高集成度,高可靠性,設計周期短和投資小逐步成為復雜數字系統設計的理想首選,尤其是在通信系統中大量地使用,把低速率的語音編碼器在fpga中設計,可以提高通信系統中的fpga的利用率,節約成本。This ku - band three channel receiver consists of spst modules, lna modules and image rejection mixer modules. these modules were designed and tested separately, then were assembled to the whole receiver. all the circuits were designed with small - sized devices so as to reduce the total size of the receiver. and the noise figure was considerably reduced because of the image rejection mixer
另外,由於採用了鏡像抑制混頻器,從而使整機噪聲系數大為降低。在設計方法上,本文採用了先進的微波電路設計軟體ansoftserenade對所有的電路和系統進行設計、優化和模擬,大大的縮短設計周期,提高設計效率。Research made in this thesis is the primary but important step in developing the actual controller, but the key point is the bringing forward and the experience on a new methodology, thus can support the future work with theory and software. by doing this, we can understand and master the design steps, preselect and optimize the controller ' s parameters, shorten the developing time, so will absolutely has great positive effects on the diesel engine electronic control engineering
本文的研究是開發實用的柴油機控制器的前期工作,更重要的是提出和實踐了一種較為先進的設計思路,可為后續的研究提供軟體和理論的支持及方法論的指導,從而進一步認識和掌握發動機控制器的設計步驟,方便地進行控制器參數的優化,縮短其開發周期,也必然對柴油機電控技術的發展起到積極的作用。In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system
在實時控制系統的設計中,本文以三相全橋mosfet逆變電路作為實時控制主電路,採用120導通方式結合半橋pwm調制的控制方案,從而有效地避免了橋臂的直通短路;本文用單電流傳感器實現對相電流的檢測,來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息,而且也用於基於信號周期測量的轉速檢測,這樣就省去了速度傳感器;系統採用的是速度、電流雙閉環控制策略,力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。Currently, with the development of computer science and the maturity of the mechanical simulation, the laser manufacture industry is improved. in order to shorten the period of the design, economize the materials and eliminate the cost of manufacture, we can simulate the laser
近年來機械繫統數字模擬模擬技術的成熟和實用化,給激光激光器生產行業帶來生機,可以將激光器的運行狀態在計算機上模擬模擬,以達到縮短設計、生產周期,節省實驗材料,降低成本等目的。In this section, the main content is about the transducer and the low - pass filter. the simulation program of wave filter circuit and the stability of wave filter and analogue signal pspice analysis are integrated in chief. these are constituted as a circulatory feedback mode, so that it speeds the process of establishing electric circuit parameters
尤其在低通有源濾波器的分析與設計這部分內容中,將濾波器電路的程序模擬、濾波器穩定性分析和pspice分析設計有機的結合起來,組成了一個循環反饋的分析模式,加快了電路參數的確定過程,縮短了產品的研發周期。分享友人