調制指數 的英文怎麼說

中文拼音 [diàozhìzhǐshǔ]
調制指數 英文
modulation index
  • 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
  • : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
  • : 指構詞成分。
  • : 數副詞(屢次) frequently; repeatedly
  • 指數 : 1. [經] (比數) index number; index 2. [數學] exponent
  1. A detailed introduction was made to the properties of the wet coated sand suitable for multi - station shell mould shooting machine ; the development of a sort of high strength coated sand with low resin content : the shaping index and wetness adjusting process : analysis and prevention of peel back defect of shells made with overturning hopper process ; test method of peel back resistance of coated sand : pinhole defect analysis of high ni ductile iron shell mould castings and application of anti - pinhole coated sand

    詳細介紹適用於吹砂式多工位殼型機的濕態覆膜砂性能;高強度低樹脂量覆膜砂的研製;濕態殼型覆膜砂的成形性調濕工藝;翻鬥法殼時的脫殼問題分析和解決辦法;覆膜砂脫殼性檢測方法;高鎳球鐵件殼型鑄造表面針孔原因分析與抗針孔覆膜砂的應用。
  2. Reforms usually begin with extra indexation and more frequent adjustment of controlled interest rates.

    改革往往始於額外化,或者更加頻繁地調整控利率。
  3. Next analyzed were the characteristics of natural gas pipeline transmission ; cost, ratemaking principle, method of acquiring the pipeline transmission fee, constitution, calculate, management and control after that, wt ; compared service cost methods with economic evaluation methods and the one - part pricing method with the two - part pricing method. later on was introduced the regulate coefficient of pipeline transmission fee structure, established the modificatory two - part pricing method, and found out a natural gas pipeline transmission pricing method that is fit for china ' s current situation. finally, we validated the rationality and applicability of this metho j by the demonstrational analysis on the natural gas pipeline transmission price of " the gas transmission from west to east " pipeline this paper ' s research fundamental is : the fundamental of natural gas pipeline transmission pricing should reflect the characteristics of natural gas pipeline transmission

    本文首先論述了自然壟斷行業的價格理論,然後分析了天然氣管輸的特點、定價原則及管輸費的收取方式、成本、構成、計算及其管理與調控;在此基礎上比較了中外天然氣管輸定價的服務成本法與經濟評價法,一部定價法與兩部定價法等;針對目前我國天然氣管道運價的定現狀,本文深入研究了國際通用的天然氣管輸定價方法,引入「管輸費結構調整系」的標,建立修正的兩部定價方法,找出了一套適合於我國當前國情的恰當的天然氣管輸定價方法,並通過「西氣東輸」管線加以實證分析,驗證了方法的合理性和適用性。
  4. On the basis of methods of feedback linearization and compound lyapunov, the author puts forward a sort of robust output track control rule with a regulable parameter. this rule not only guarantees the system exponent output track but also makes the closed loop system have limited states

    基於反饋線性化方法和復合lyapunov方法,作者提出了一種具有可調的魯棒輸出跟蹤控律,不僅可以保證系統輸出跟蹤,而且閉環系統狀態有界。
  5. Besides tt & c transponder, the power support for pico - satellite also covers cmos camera, data processing unit and energy subsystem, by connecting and charactization which, full course from modulation and demodulation of instruction data to feedback of image data, wireless long - range transmission and the feedback of sidetone signal could be achieved

    4 、整個衛星的電系統除了通信一體機外,還包括cmos相機和據處理單元以及能源分系統。具備了這幾部分,對系統聯試,實現了從令信號的調調和圖像信號的返回的全過程,並且可通過遠距離的無線傳輸。
  6. The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment. i am responsible for design catv charge and control equipment and test system. the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency. the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part, where the demodulated fsk single is received and well - handled by the cpu unit, decode the unauthorized signals and deliver it to the shut point, shut point make use of capability of wideband anf characteristic of shut, then the signal of illegal customer will be turn off and vice versa, the legal customer can receive the normal signal

    前端調器完成對計算機輸出的控信號加密處理,將令碼載送到一定頻率點。終端收費控器解調出控信號,送至單片機尋址控部分。單片機尋址控部分接收經fsk據解調器送來的信號,送入cpu單元后,解出不授權信號,然後向關斷部分送入信號,關斷部分利用pin二極體的寬帶工作能力以及關斷特性,實現對非授權用戶或者非法用戶的信號關斷,使之不能正常收視,繳費用戶進行開通正常收視,達到控用戶通道的管理。
  7. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉電容結構,採用體硅微機械工藝製作的高深寬比叉電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調處理,然後通過解調輸出與加速度成正比的電壓信號。
  8. The one - dimension effective fpk equation of colored noise serves as our starting point to evaluate the effect of noise color on communication system design. the theory of ber versus input snr per bit is developed and a new procedure to determine the system parameters that influence the minimum ber is proposed. it is shown that the communication system ' s performance is related to the turnable system parameters as well as the noise correlation time

    相關高期色噪聲情況下,本文以一維有效色噪聲fpk方程作為研究的出發點,理論分析了限帶高斯色噪聲通道中脈沖幅值調字信號傳輸的誤碼性能,給出了非線性接收器的接收性能曲線,充分體現了噪聲相關時間的影響。
  9. Based upon the analysis of the data obtained during the survey, it can be concluded that : 1 ) the number of biomass of macrobenthos in the yellow sea and the east china sea in autuma is higher than that in spring, while the number of density of macrobenthos in autumn is lower than that in spring ; 2 ) the number of biomass of macrobenthos in the yellow sea is higher than that in the east china sea ; 3 ) the number of species in the yellow sea is lower than that in the east china sea ; 4 ) one of the characteristics of distribution of macrobenthos in the east china sea is that the species richness increased from the coastal waters to the offshore deep waters, from the north to the south. 5 ) the species composition in the deeper part occupied by the cold water mass of the yellow sea is more stable than that in the coastal part of the yellow sea in the late 40 ~ 50 years

    通過以上幾方面的分析,結果表明: 1 )黃東海調查海域的秋季總生物量均高於春季,總棲息密度則低於早春季; 2 )黃東海春季生物多樣性高於秋季; 3 )南黃海、東海的水文特點顯著不同:東海底溫顯著高於南黃海底溫,東海底鹽亦高於南黃海底鹽; 4 )南黃海春秋季生物量分佈無一致規律,東海春秋季生物量除長江口外基本上自近岸向外海逐步降低; 5 )東海大陸架大型底棲動物的種類組成較南黃海更豐富; 6 )東海大型底棲動物的分佈特點之一為:種類由北向南、由近岸(西部)向外海(東部)逐漸增多; 7 )在黃海冷水團控的海域,其底棲動物種類組成較近岸海域穩定; 8 )幾個生物多樣性各有側重,都能較好地反映底棲動物的分佈特點
  10. Board members discussed the existing method in compiling seasonally adjusted data for a number of statistical series, such as the consumer price indices and retail sales, and were informed of c & sd s latest development in this respect

    委員討論了統計處現時為一些統計列(例如消費物價和零售業銷貨額)編經季節性調字的方法,並獲告知統計處在這方面的最新發展。
  11. It includes : dynamic show of technics flow, real time data acquirement and show, history data save and print, fault alarm, etc. the plc control system mainly accomplishes the wastewater technics flow control, harmonizes the logical relationship among local intelligent control instruments and transmits the state of each local equipment to the industrial computer simultaneously, the plc control station receives the control commands from the industrial computer ; the local intelligent units take charge of the correlated parameters measure, disposal and control, and it will transmit the related parameters to the computer, etc. in this thesis, introduced municipal wastewater treatment technics, the integrated application program development of computer, the design method of plc control station, the communication between plc control system and computer, and the network of wastewater treatment with profibus - dp was also discussed

    上位計算機主要實現遠程監測和管理功能,具體包括:工藝流程動態顯示、實時據獲得及顯示、歷史據存儲與列印、故障報警等功能plc控系統主要完成工藝流程式控以及協調現場各智能儀表之間的邏輯關系,將現場各設備的運行狀態通過通訊網路傳輸到上位計算機,並接收上位計算機的控令;現場各智能儀表單元負責各相關參的監測和處理、控,並將有關參送往上位監控計算機進行處理、保存等。本文以莎車污水處理項目為例,介紹了城市污水處理工藝、上位監控計算機的綜合應用程序開發、城市污水處理自動控系統plc控站的設計和採用profibus系列中廣泛應用於現場設備的profibus - dp總線。
  12. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能標和技術特點,解析的研究了電子束在相對論速調管放大器的調腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程,同時對線性區的增益進行了計算。理論分析表明,場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因等特性參
  13. 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

    字音頻功放技術是近年發展起來的高效率音頻放大技術,該放大技術採用了過取樣、噪聲整形等字音頻處理演算法和開關功率放大。採用該技術實現的電源調器不但具備很高的效率,而且能高標地放大包絡信號,是常規的電源調技術無法實現的。
  14. Firstly, a 0 - 1 integer programming mathematical model is constructed to describe tail - number - assigning work happened in domestic airline, since the problem is npc, a unified polynomial algorithm which satisfies engineering requirement is unavailable. illuminated by the practical experience, a specific tna problem is classified into one of three typical tna modes : tna based on fleet dispatching commands, tna based on fleet balance application, tna based on minimum fleet requirement ; secondly, by simplifying and relaxing some minor constraints, corresponding mathematical models and heuristic algorithms are reconstructed for each typical tna mode ; finally, computing complexities are discussed

    為此論文在借鑒手工編排班計劃經驗的基礎上,將一個具體的飛機排班問題,歸結為三種典型排班模式中的一種,即:基於飛機調令要求的排班問題,基於飛機使用均衡要求的排班問題和基於最少需用飛機的排班問題,對于每種典型的飛機排班模式,在對次要的約束條件進行簡化、松馳的基礎上構造出相應的能夠滿足工程應用要求的啟發式演算法,並分析了演算法的復雜性。
  15. The parameters in this method have specific physical meaning and it is convenient to adjust them according to different control indexes

    演算法中的參具有明確的物理意義,可根據不同的控標方便地調節,並且能夠獲得足夠的穩態誤差。
  16. In the last, test and optimization of dvb - c modulator system are addressed. methods of test and some items which should be paid attention of digital carrier level and rate of carrier to noise 、 relationship between ber and c / n 、 mer ( modulator error rate ) are given, some test results got by analyzer are all up to dvb - c test standard

    給出了字載波電平與載噪比( c / n ) 、誤碼率( ber )與載噪比( c / n )關系、調誤碼率( mer )測試的方法與測試注意事項,通過分析儀等分析得到結果包括列表和圖示,達到了dvb - c規定的各項標。
  17. 4. the majority of public responses received support the establishment of a new rent adjustment mechanism on the basis of a clear and objective index. in recognition of the close relationship between residents income and their rental affordability, many are in favour of an income - based index

    4 .諮詢的結果顯示,公眾普遍支持以清晰客觀的標建立一套新的租金調整機,不少意見亦傾向采納與入息相關的,認為居民入息與租金負擔能力之間有比較密切的關系。
  18. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算,初步建立了一臺實驗系統;採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量,並模擬了相關參對展寬比的影響,對實驗具有導意義;評價了再生放大器和多通放大器的優缺點,對放大過程中通常忽略的放大自發輻射現象( ase )進行了分析,並提出了相應的解決方法;針對放大過程中出現的增益窄化和增益飽和現象,對輸入種子脈沖提出了一種新的分段頻率調,實現了對增益窄化效應和增益飽和效應的共同抑;提出了系統的材料(包括放大介質和光路中的普通介質)正是融合高階色散的來源。
  19. Some modulation parameters, such as the carrier frequency and the symbol rate, can be estimated prior to the recognition of modulation types. such other parameters as the modulation index, the modulation frequency deviation, and the signal broadband can be further estimated after recognition

    部分調如載波頻率、符號速率在識別之前獲得,在識別完成之後可以進一步估計調制指數調頻偏、信號帶寬等其餘參
  20. Simulation is operated with ns2 under linux, and the simulation results show that, the presented algorithm is simpler and more practical, while it can improve the fairness index of ad hoc network to a large extent compared with the ieee802. 11 binary exponential backoff ( beb ) algorithm. it can make better use of the wireless channel by dynamically adjusting its backoff timer according to the network ' s contest situation. in addition, service differentiation can be achieved among flows with different qos requirements and thus the qos for medium access control in ad hoc network is improved

    通過在linux系統下利用networksimulator ( ns2 )模擬工具對演算法進行計算機模擬分析,結果表明,與ieee802 . 11標準採用的二進退避( beb )演算法相比,該文所提演算法更簡單、高效,它能在很大程度上提高adhoc網路通道接入的公平性,並能動態地提供服務區分,保障對多媒體等多種實時業務的傳輸需求,同時,演算法可以根據網路當前具體的競爭激烈情況,動態調整退避時間值,從而提高通道的利用率。
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