頻率劃分 的英文怎麼說

中文拼音 [bīnlǜhuàfēn]
頻率劃分 英文
fdm
  • 頻 : 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 : 率名詞（比值） rate; ratio; proportion
  • 劃 : 劃動詞1 （撥水前進） paddle; row 2 （合算） be to one s profit; pay 3 （用尖銳的東西在別的東西上...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 頻率 : frequency; rate
  1. Such classes are separated by "natural breaks" in the frequency distribution or the analogous cumulative curve.

    這樣的級可由頻率分佈或類似的累積曲線中的自然斷點劃分開來。
  2. Can technology traits are analyzed, and can technology is applied on the power factor dynamic compensation system. on the basis of analyzing thoroughly the theories and techniques, software module of power factor dynamic compensation system are classed and their time - period is analyzed. the techniques of real time sampling idle current and generating compensation current are simulated with software

    在分析電網的頻率特性和功率因素動態補償系統的性能特點基礎上，對功率因素動態補償系統的軟體功能模塊進行了層次劃分和時序特點分析；對無功電流實時檢測、無功補償電流的產生等技術實現了軟體的模擬。
  3. It is difficult point of the design of the new system that directly generated statistic data from the data sources. because that the ability of monitoring of each enterprise of petrochina is different. especially they lack of some monitoring point, and the monitoring frequency is inconformity

    從數據源直接生成統計匯總數據是新系統的設計難點和突破口由於股份公司各企業監測能力和具體情況懸殊很大，存在監測頻率不一致、監測點位不足等問題，使得監測點類別劃分上很困難。
  4. Algorithm analysis and simulation for frequency allocation based on graph theory

    基於圖論的頻率規劃演算法分析與模擬
  5. Abstract : a new algorithm applied to the fixed channel assignment in the cellular pattern is proposed. it is based on the theory of evolutionary algorithm. it uses the concept of multiple reuse plan ( mrp ) and solve the problem of large scale through blocking algorithm, and it is a fast 、 efficient and parallel searching method. it has been used in frequency plan system of beijing university of posts and telecommunications. it has been used in several plan project for some city, and been adopted because of its good performance

    文摘:提出了一種新的用於蜂窩移動通信中小區規劃的固定頻率分配演算法.它基於遺傳演算法的基本理論，運用多層頻率復用的概念和分塊演算法解決了大規模區域的頻率規劃問題，是一種快速、高效的并行式搜索的頻率分配演算法.該演算法已用於北京郵電大學的頻率規劃軟體系統中，並用它為幾個市區作過規劃，效果滿足要求，且已被采納
  6. To discuss the natural vulnerability of different coasts to future sea - level rise, the paper selects the coasts along the pearl river mouth as the studied area. after analyzing the impacting factors of natural vulnerability along the pearl river mouth, the paper divides the coastline of approximately 412km into 25 15 - minute gird cells. for assessment purposes, the six variables including geography, relative sea - level change, average tide range, regional slope, shoreline erosion or accretion rates and tropic cyclone impacting frequency are selected as assessed variables

    為了探討不同海岸帶對未來海平面上升的自然脆弱性，本文以珠江口沿岸作為研究個案，在分析珠江口沿岸自然脆弱性的影響因子的基礎上，把珠江口沿岸412km岸線劃分為25個15 15的網格單元，選取了地質、海平面上升率、平均潮差、區域海岸坡度、海岸侵蝕/堆積率、熱帶氣旋影響頻率6個評價指標，應用cvi指數評價公式對珠江口地區進行海岸脆弱性評價，並建立海岸脆弱性評價數據庫，繪制了珠江口沿岸1 ： 2 ， 000 ， 000的數字化cvi圖。
  7. The project uses for reference the algorithm thought of sbc ( subband coding ) to measure off the audio to the corresponding frequency width and encode it by the different sensitivity of human hearing, which results in the lower coding rate and bearable voice quality. the algorithm processing low bit - rate audio is designed to be self - adaptive by the situation of network. the component developped by that algorithm and project has already been used in the realtime interactive educational system

    該方案借鑒sbc （ subbandcoding ）子帶編碼演算法思想，將音頻按對人聽覺敏感程度不同劃分為相應的頻帶並進行相應的編碼，從而得到較低的編碼率和較好的語音質量，設計了可根據網路狀況進行自適應的低帶寬音頻處理演算法。
  8. Abstract : the paper presents the study on problems of self - excitation ， over - voltage ， frequency and voltage stability ， organizational measures and arrangement in the course of black start and restoration of the system. through simulation of black start on east china power system ， above problems are analyzed and solved ， it shows that working out strict black start scheme may not only speed up system restoration ， reduce outage losses ， but also have important significance to emergency release or power system islanding

    文摘:研究電力系統黑啟動的過程及恢復中存在的自勵磁、過電壓、頻率和電壓穩定、組織措施及安排等問題，並通過華東系統黑啟動模擬對上述問題進行分析和解決，證明制定嚴格的黑啟動計劃不僅可以迅速恢復系統、降低事故損失，而且對處理緊急狀態或地區性解裂有重要意義。
  9. The experimental study is performed on the c - band tapered milo designed with the help of the simulation. the whole system is calibrated separately by parts. from milo to microwave receiving hom, the special system is simplified to be a two - port network and its s parameter is measured to calculate the attenuation factor a

    對于微波功率的標定問題，我們根掘實驗條件，將整個系統劃分為幾個部分分別進行了標定，包括：從milo到接收喇叭組成的特定系統，將該特定系統簡化為一雙口網路，並測量出了其s參數，從而計算出與頻率密切相關的衰減量a ；對固定衰減器在不同微波頻率下的衰減量進行了標定。
  10. Preliminary studies on the poly - embryo seedlings occurrence frequency and types of leek

    韭菜多胚苗發生頻率及其類型的劃分
  11. Article has introduced partition and the definition of oscillator frequency stability, and analyzed emphatically to cause the vibration factor with instability frequency, this paper elaborated the major measure and steady method that how to raise frequency stability

    摘要介紹了振蕩器頻率穩定度的定義與劃分，著重分析了導致振蕩頻率不穩定的因素，詳細地闡述了提高頻率穩定度的主要措施和穩定方法。
  12. According to the numbers of segmentations, dts has multi scale feature and can reflect different trend similarity of time series under various analyzing frequency. 2 ) an enhanced algorithm, based on dual threshold value, and the conception of sub - series linear are proposed. relative point average error is used to measure the linear degree of sub series, which produced by bottom _ up algorithm

    對應時間序列線性分段數目的不同，序列趨勢距離具有基於時間的多尺度分析特性，可以有效反應不同分析頻率下時間序列的相似程度； 2 ）採用相對點平均殘差衡量bottom _ up演算法劃分的子序列線性度，提齣子序列線性度概念和一種雙誤差閥值改進演算法，大大提高了趨勢序列模型的準確性。
  13. This dissertation is mainly about the transit radiation of the electron beam passing through the gap with the random standing wave electric field. in order to satisfy the requirement of the task, the feasibility of generation of more than 1 gw high power microwave in x - band using the transit radiation oscillator based on the transit effect is studied

    研究了二維柱坐標系網格劃分演算法，並用此演算法對五腔開放腔進行網格劃分，採用時域有限差分與快速傅里葉變換相結合的方法計算了五腔開放腔/ 6 、 2 / 6 、 3 / 6 、 4 / 6 、 5 / 6模這五個模式的頻率和場分佈。
  14. Based on the theoretic method, minjiang plain is divided into regions by flood risk using the method of hazard frequency analysis is developed

    在理論分析的基礎上，結合岷江成都平原洪水風險分析的具體研究項目，運用水災頻率分析方法進行了洪水風險區劃的研究。
  15. Crews cover the middle 1000 metres at about 40 strokes per minute, but, over the first and last 500 metres, shift up a gear to as many as 47

    在賽程中段的10000米，隊員們每分鐘要劃槳40下，而在前段和後段的兩個500米中，劃槳的頻率要加快到每分鐘47下。
  16. The basic agc roles include : ( 1 ) making generation follow the load change, and holding system frequency on fix value ; ( 2 ) dispatching power to each area, and holding exchanging power on fix value between each area

    其主要功能是響應負荷和發電的隨機變化，維持電力系統頻率為規定值，響應各區域分配系統發電功率，維持區域間凈交換功率為計劃值。
  17. Because the different stiffness match of front and rear suspension is very influencing to the ride comfort, optimal model of ride comfort is developed, regarding the rms of driver ’ s acceleration as the objection, regarding the stiffness of front and back suspension as optimal variable, regarding quiet flexibility 、 dynamic flexibility 、 frequency and dynamic load as nonlinear constraints. by matlab program and using sqp, the optimal match of front and back suspension ’ s stiffness is achieved, this optimal model consider not only request of quiet 、 dynamic flexibility 、 frequency and damp, but also security of run and peace of road, it is closer to the fact than other models which only consider partial restriction

    由於前後懸架垂直剛度的不同匹配對汽車行駛平順性影響較大，論文建立以駕駛員垂直加速度的均方根值作為汽車行駛平順性優化目標值、以前後懸架垂直剛度作為優化變量的優化設計模型，並輔以靜撓度、動撓度、頻率、動載荷等非線性約束，使用序列二次規劃法，利用matlab編制優化程序，求得前後懸架垂直剛度的最優匹配值;此優化模型不僅包含動靜撓度及頻率和阻尼的限制，還考慮到汽車的行駛安全性和道路友好性，比文獻報道的只考慮部分約束的優化模型更切合實際情況。
  18. Table of frequency allocations

    頻率劃分表
  19. Theoretical research on the type and mainframe tripled frequency converter : on the basis of building finite element models, dividing grid, application of load in the software of ansys, the dynamic and static performances are calculated, the value of the deformation, the first natural frequency and corresponding mode of the frequency converter are obtained, finally, the dynamic performances of the frequency converter are analyzed

    對型三倍頻組件和主機三倍頻組件的理論研究:採用通用ansys軟體對組件進行合理建模，劃分網格，施加載荷，在此基礎上對它們進行了靜態分析和動態分析，得到最大變形量、低階固有頻率和相應的振型，並對組件的動態性能進行了分析。
  20. The transform uses the scale of the signal to decompose and make self - adapting frequency band partition of the input signals. therefore the amplitude value and the modulating frequency of the flickering signal can be obtained. with the instantaneous frequency in this method, the present study also analyzes the signal in terms of both time and frequency, and thus gets the time at which the flickering signal occurs and terminates

    運用該變換從信號本身的尺度特徵出發對信號進行分解的特點，對輸入信號進行自適應的頻帶劃分，從而求出了閃變的調制信號幅值和調制頻率;利用該方法中的瞬時頻率概念，從時頻兩方面同時對信號進行分析，從而獲得了閃變信號的發生時刻和終止時刻，得到了較好的檢測效果。
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