頻帶劃分 的英文怎麼說
中文拼音 [bīndàihuàfēn]
頻帶劃分
英文
band allocation-
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。Acoustic intensity detection can efficiently estimate objective direction, and frequence partition, beam revolving and vector equations can differentiate multi - object
聲強檢測可以有效地進行目標方位估計，利用頻帶劃分、旋轉波束、矢量方程組可以在一定程度上有效地解決多目標干擾的問題。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。To make itself compatible the transmission mode of the conventional catv system, the bandwidth of hfc system is divided into many 8mhz channels, which include downstream and upstream channels
為了兼容傳統的有線電視傳輸模式， hfc網路帶寬首先被頻分為若干個8mhz的頻道，這些頻道被統一劃分為下行和上行通道。Filter poly - phase decomposition method is adopted in this dissertation. the partition of the tuning channel according to the digital mixing sequence, and the digital down - conversion by means of decimating first, the low - pass filtering and mixing realize efficiently the down - conversion of the variable carrier frequency band - pass signal
本文採用濾波器多相分解方法，按數字混頻序列劃分調諧通道，使用先抽取，后低通濾波，再混頻的數字下變頻結構，高效實現了變載頻帶通信號數字下變頻。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。The feasibility of using mallat algorithm to extract the feature component of rotor bar faults is discussed, and we find that mallat algorithm is not suitable for rotor bar faults detection because of the similar representations of the fault and the normal signals
分析了應用mallat小波變換快速演算法提取轉子斷條故障特徵的可行性，指出由於故障信號與正常信號在時頻域上的表現非常接近，僅使用基於頻帶劃分的多解析度分析方法的mallat演算法難以提取出明顯的轉子斷條特徵量。Lacking of space locality in time domain, fourier analysis can only make certain of the integral singularity of a function or signal. as a result, it is difficult to detect the spatial position and distribution of broken signal by fourier analysis. wavelet analysis has the characteristic of spatial locality, and its wideness in both windows of the time and the frequency can be adjusted, so it can analyze the details of a signal
經典的fourier變換把信號按三角正、餘弦基展開，將任意函數表示為具有不同頻率的諧波函數的線性迭加，能較好地刻劃信號的頻率特性，但它在時空域上無任何分辨，不能作局部分析，這在理論和應用上都帶來了許多不便。In prototype system, a l - shaped non - uniform linear array with 5 elements is utilized to receive spatial signal with carrier frequency among 2 - 18ghz. the entire frequency band is decomposed into 1ghz sub - bands and then is mixed to 1ghz base band. the base band output of each antenna is sent through a synchronous 250mhz undersampling channels
在本實驗系統中，我們設計了一個5陣元的l型非均勻陣列天線，將的頻段劃分成的子頻段，然後將每個子頻段混頻到的處理基帶后再進行的同步欠采樣。To add " the economic activities of hong kong are getting busier by the day and its population keeps growing, and " after " that, as " ; to add " generated " after " amount of waste " ; to add " and trades " after " development of environmental industries " ; to add " and trades " after " comprehensive policy on environmental industries " ; to add " and principles such as polluter - pays to reduce waste generation and increase incentive to recover waste and, at the same time, studying the feasibility of restricting the disposal of toxic waste in landfills, so as " after " producer responsibility scheme " ; to add " the source separation of domestic waste programme as well as " after " comprehensively implementing " ; to add " as well as separation " after " recovery stations " ; to delete " and " after " green procurement policy " and substitute with ", " ; to add " and strongly urging public and private organizations to develop green procurement guidelines " after " to comply with it " ; to add " and labelling " after " green certification " ; to add " as well as establishing a database " after " products and services " ; to add " expediting the tendering exercise for the remaining lots in phase i of the ecopark and expeditiously drawing up a timetable for the granting of lots in phase ii in order to develop high value - added environmental industries ; " after " ; to delete " and " after " related work ; " and substitute with " reviewing the existing legislation regulating environmental industries and trades and actively studying the feasibility of implementing a licensing regime for certain environmental industries and trades, in order to enable a healthy development of such enterprises and, at the same time, avoid causing unnecessary damage to the natural environment and nuisances to the residents in the vicinity ; and " ; to delete the original " and substitute with " ; to add " and trades " after " participate in those environmental industries " ; and to add " and trades " after " promoting the economic development of environmental industries "
在"鑒于"之後加上"香港經濟活動日益頻繁和人口持續增加， "在"本港廢物"之後加上"產生"在"構成環保工業"之後加上"和行業"在"政府為環保工業"之後加上"和行業"在"生產者責任制"之後刪除" ，以" ，並以"和污染者自付等原則，以減少產生廢物和增強廢物回收意欲，同時研究限制將有毒廢物棄置在堆填區的可行性，從而"代替在"全面推行"之後加上"家居廢物源頭分類計劃和"在"廢物回收點"之後加上"分類"在"遵守， "之後加上"力促各公營和私營機構訂立環保采購指引， "在"環保認證"之後加上"和標簽"在"制度， "之後加上"以及建立資料庫， "在"六"之後加上"加快進行環保園第一期餘下土地的招標工作和盡快制訂第二期計劃的批地時間表，以發展高增值的環保工業"在"相關工作"之後刪除"及" ，並以"七檢討現行規管環保工業和行業的法例，積極研究對某些環保工業和行業實施發牌制度的可行性，令該等企業得以健康發展，同時避免對自然環境帶來不必要破壞和對附近居民造成滋擾及"代替刪除原有的"七" ，並以"八"代替在"具前景的環保工業"之後加上"和行業"及在"推動環保工業"之後加上"和行業" 。Based on this model, an application level layer - based congestion avoiding mechanism using by multicast is given. it takes advantage of layered video coding, sets down a set of video transfer scheme with different bandwidth
利用視頻編碼的特點，將視頻數據編碼幀按不同的壓縮比劃分為多個層次，並制定出相應的佔用不同帶寬的多層視頻編碼傳輸方案。Affected by the subtropical monsoon climate, jiangsu province is one of the provinces which have much natural disaster and drought, steady rain, waterlogging are its primary meteorological disasters. using citystar 3. 0, city star gis and reasonable indicators for disaster estimation, this paper progresses evaluation and analysis for its primary meteorological disasters such as drought, steady rain and waterlogging. in this work, the frequency of disaster and the risk to agriculture are taken into accounted
因此，本文以該地區為例，選用影響該省主要氣象災害的定量指標，從災害出現頻率以及對農業生產帶來的風險出發，採用合理的災害風險評估指標，藉助于地理信息技術gis的空間分析方法，以風險指數為區劃指標，劃分風險等級，分季節對該省的主要氣象災害乾旱、連陰雨、雨澇的嚴重程度進行了評估和分析，獲得了gis系統支持下的災害風險區劃專題地圖。分享友人