數字分級系統 的英文怎麼說

中文拼音 [shǔzìfēnjíxìtǒng]
數字分級系統 英文
digital hierarchy
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 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
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  1. The construction of land use status information system improves the accuracy and the trends of times of land use information, it automatically stores, manages, researches, inquires, counts, analyzes, renews and defends land use status graph which is digital, solves the problem of the renewal of land use status graph and data. it provides not only modern technology means for everyday professional work in county level land management department, but also basic data and scientific basis for land use renewable investigation, dynamic monitoring, land use totality planning. on the other hand, it lays a foundation for the establishment of cropland transform system, land exploitation and readjustment, approvable management system of construction project used land, management system of rural land register

    土地利用現狀信息系統的建設，提高了土地利用現狀信息的準確性和現勢性，實現了對土地利用現狀圖件的存儲、管理、檢索、查詢、統計、分析、變更、維護的數字化和自動化，從根本上解決了土地利用現狀圖及數據的更新問題，不僅為縣級土地管理部門的日常業務工作提供了現代化的技術手段，而且為土地利用變更調查、動態監測、土地利用總體規劃提供了基礎數據和科學依據，為農地轉用制度、土地開發整理、建設項目用地審批管理制度及農村地籍管理制度的建立莫定了現代化基礎，同時也可為土地利用動態監測、土地利用規劃、建設用地的審批和管理提供技術服務。
  2. This paper refers to several creation in compatibility with large volume of fed display and conversion of different video signal. it firstly used special central chip al300, designed correlative circuits, successfully developed vga full - color fed console system, compatible with resolution 1280 1024, achieved functions such as multi - video signal conversion and interleaving, met vga ’ s resolution of fed. it firstly designed and fabricated vga interface and separated video interface - - s - video, converting several video signals to 24 bits full - colored digital image signal in fed driving system, achieved separation of luminance signal and chromatism signal, enhanced the bandwidth of luminance signal

    首次採用平板顯示專用控制晶元al300 ，設計並製作了相關配套電路，支持的最高解析度是1280 1024 ，實現解隔行和多種視頻格式轉換的功能，滿足了fed顯示屏對vga解析度的要求。首次在基於fpga的vga級彩色fed控制系統中設計並製作了vga介面和分離電視信號s - video介面，可以將多種視頻信號變換為fed驅動系統可用的24位彩色數字圖像信號，實現亮度信號和色差信號的分離，提高了亮度信號的帶寬。
  3. Abstract : a digital automatic ultrasonic testing system developed for stovetubes of petrochemistry was introduced including the choice of the angle of a transducer and the grading of tubes

    文摘:介紹自行研製的透射式數字化爐管超聲自動檢測系統及檢測結果，並對超聲探頭的入射角選取和爐管的分級進行了探討。
  4. Category systems are its techniques to gather data, and it has three forms : coding system, tally system or checklist and rating scale. they all produce some numbers as the form of the data the data are analyzed by the way of statistics. in the last part, the article talks about the qualitative observation

    記錄課堂信息的方式主要有三種：編碼體系、記號體系核查清單以及等級量表，通過這些結構化的體系所記錄的信息多以數字的形式呈現，而這些數據資料進行分析的方法有簡單的計算，也有較為復雜的統計分析方法。
  5. Fpga and dvb standard are introduced firstly, dvb - c standard and composition of its system are analyzed completely, development of modulator structure and dvb - c digital modulator composition are presented, more over, analysis of respective modular are given. then, principle of dvb - c digital modulator system are presented, they are error control technique 、 mqam 、 nyquist rule and root raised cosine filter 、 window design method for fir filter 、 multi - rate signal processing ( integer interpolating, conversion of fractional sampling, equal conversion of net structure, polyphase structure for filter, poly - phase structure for interpolator, multi - stage implementation of samplying conversion ) 、 distrubited algorithm 、 cic filter 、 dds 、 cordic algorithm

    接著，專門利用一個章節闡述了dvb - c前端調制系統原理，他們了差錯控制技術、多進制調制（ mqam ） 、 nyquist準則與平方根升餘弦濾波器、有限沖擊響應濾波器的窗函數設計法、多抽樣率信號處理包括（整數倍內插原理、分數倍抽樣率轉換、網路結構的等效結構、濾波器的多相表示、內插器的多相表示、抽樣率轉換的多級實現） 、分散式演算法、 cic濾波器、直接數字頻率合成（ dds ） 、 cordic演算法。
  6. This paper discusses some important technologies closed to dtv receiving system deeply, base on scn and cctv. it includes mpeg - 2 system level, dvb service information, conditional acceptance. it also describes how to realize epg, ca, upgrade on line etc based on the dtv service information technology at lengtho now, the production of this design is applied to the digital tv products of cctv and sichuan tv net

    本論文結合數字電視在四川廣電網和cctv的具體應用情況，深入研究探討了與數字電視接收系統緊密相關的部分關鍵技術，包括mpeg - 2系統層結構分析、 mpeg - 2和dvb業務信息分析、數字電視條件接收基本原理和加解擾及加解密技術，並詳細敘述了如何運用數字電視業務信息技術實現了電子節目指南、條件接收、在線升級等基本業務。
  7. In order to grasp the urban system processes and evolution pattern of hunan province comprehensively, this article has made further discussion on its structure characteristic : through regression analysis, graph analysis and statistics analysis of the time series data and cross sections data, by combining with the fractal theory, we induce the following conclusion : the hierarchical size structure presents the law of the primate city, the rank - size rule and pyramid structure characteristic, but it also has the insufficient development problem of the high hierarchical size city. by using the gravitation model, we found out that the economy relation intensity among those main cities is weak while the structure is loose. based on the urban layer system of economic development level and industrial structure evolution of the cities in hunan province, this article then induces the function combination among the five urban agglomerations in hunan province

    為全面把握湖南城市體系的運演規律，本文對其結構特徵作了進一步的探討:通過時序數據和截面數據的回歸分析、圖表分析和統計分析，結合分形理論，得出了其等級規模結構分佈呈現出首位分佈、位序?規模分佈和金字塔結構特徵，以及存在著高層次城市發展不足的問題;運用場引力模型發現該省主要城市間的經濟聯系強度較弱、結構鬆散，在歸納出該省城市經濟發展水平的層次體系、產業結構演變的基礎上，導出了該省城市體系的五大城市群職能組合;結合空間結構體系、路網交通條件和經濟發展狀況，對該省城市空間分佈狀態進行了定性分析，研究表明該省總體上處于極化階段，各個具體區域，分佈階段不一，差異較大。
  8. Main course : structure of network of structure of all of technology of principle of analysis of logic of technology of electron of circuit principle, imitate, number, number, computer, microcomputer, computer science department, computer, advanced language, assembly language, data, operating system

    主要課程：電路原理、模擬電子技術、數字邏輯、數字分析、計算機原理、微型計算機技術、計算機系統結構、計算機網路、高級語言、匯編語言、數據結構、操作系統等。
  9. ( 4 ) to record the running situation. and this software was developed by c + + under microsoft vc + + 6. 0 and is composed of 5 modules : the initial module to finish the video card and i / o card initializations ; the start - stop module to create and destroy the thread used to supervise light room and process image ; the image - capturing module to capture the image from ccd to ram ; the image processing module to get classified information through analysis ; the signal i / o module to send the signals to the outside and also to send outer information to the inside ; the system log module to record the running situation of the system and the quantity of detected eggs

    系統由5個模塊組成：初始化模塊完成圖像採集卡和數字量i o卡的初始化；啟動停止模塊建立和消亡用於監控光室狀況和進行圖像處理與分析的線程；圖像採集模塊將光室中所成的像通過ccd經由圖像採集卡採集到主機內存中；圖像處理模塊對主機內存2001碩士論文摘要中的圖像進行分析，得出所需要的分級信息;信號1 / 0模塊將得出的分級信號送出至計算機外部，同時也將計算機外部的控制反饋信息傳至計算機內部;系統日誌模塊記錄系統的啟動運行情況和當前系統檢測鴨蛋的數量。
  10. It is an important link in the image processing system ; moreover, its result has direct relations with the high - level process and relations with understand of the image

    圖像增強技術是數字圖像處理中的一項基本技術，是圖像處理系統中預處理部分的重要一環。數字圖像增強的結果直接影響到圖像的高級處理和解譯。
  11. As the step of the color tv ( the second generation ) to the digital tv ( the third generation ) is larger and larger, the research of digital television terrestrial broadcasting ( dttb ) become more and more important in china, we are concentrating on the standard of dttb which is suit for our country after describing and analyzing the technical stipulation and speciality of dttb, this paper compares atsc 8 - vsb with dvb - t cofdm and isdb - t bst - ofdmo the emphasis of this article lies in the technical solution about transferring system, channel coding is important component of dttb, which can resist from the bad circumstances o because of lots of varieties and different performance, channel coding become one of the emphasis of the research work this paper analyzes and researches the theory and performance of the different channel coding particularly, points out an effective theoretic analysis method and computer demo of performance comparison a theoretical method for estimating the performance of concatenated codes is proposed in this paperc this is achieved by combining the performance of single level coding rayleigh fading channel and the character of channel modulation it may be useful to research and development of the future digital television terrestrial broadcasting standard of our country

    通道糾錯編碼是數字電視地面廣播傳輸系統的重要組成部分，是抵禦地面惡劣環境的有效手段。由於通道編碼的種類繁多，性能各異，因此是目前研究工作的重點之一。本文詳細分析和研究了幾種通道糾錯編碼的原理和性能，並針對外碼內碼級聯糾錯結合地面通道瑞利衰落提出了一種有效的理論分析方法和性能的計算機比較演示方案，總結了不同級聯方案的性能特點，對於我國目前的數字電視地面廣播標準的研究和通道級聯糾錯方案的確立及其參數選擇具有一定的參考價值。
  12. ( 3 ) eco - tourism value of wetland landscape resources. for a rational development and protection of the wetland, we studied its landscape resources and its value to created an assessment system of the ecological landscapes, and to evaluated qualitatively and quantitatively the value of wetland to the eco - tourism. we also analyzed the structure, classification and order of the wetland landscapes

    同時，根據ahp 、多元分析及數量化理論，科學地提出了南洞庭湖景觀生態數字化評價模式，篩選了濕地景觀九個因子，制定了景觀因子等級標準體系，建立了濕地景觀項目（ 9 ） -類目（ 34 ）系統，完成了86個景觀樣本景觀因子的數字化。
  13. The system can generate three - phase spwm pulses and has following characters : the range of modulation frequency is from 0 khz to 4 khz. and can be divided to 7 classes to control. the carrier frequency may be selected up to 24 khz, and can be divided to 8 classes to control ; rotational frequency is defined to 16 bits

    該系統能產生三相六路正弦脈寬調制（ spwm ）波形;調制頻率范圍為0 4khz ，分7級控制; 16位的速度控制解析度;載波頻率分8級控制，最高可達24khz ;系統介面兼容intel系列和motorola系列單片機;該系統控制簡單、精確，易修改，可現場編程;同時具有脈沖延時小、最小脈沖刪除、過壓和過流保護功能等特點，可應用於pwm變頻調速系統的全數字化控制。
  14. Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts

    從第二代電流傳輸器ccii入手，重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾波器的設計方法，主要方法和結果如下:利用mddccii設計了差分式連續時間電流模式低通、帶通濾波器;電流模式跳耦結構考爾低通濾波器;利用fbccii設計了帶通二階節濾波器及電流模式雙二階通用濾波器;設計了基於多輸出端ftfn的電流模式二階通用濾波器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾波器;設計了基於最少個數電流緩沖放大器（兩個cdba ）的多功能通用電流模式濾波器及其在非理想因素情況下分析。設計濾波器的主要方法是採用級聯設計、運算模擬（信號流圖法）和反饋設計（跳耦法） 。
  15. Standard test method for conducting outdoor sound measurements using a digital statistical analysis system

    使用數字統計分析系統測量室外聲級的標準試驗方法
  16. Tetra ( terrestrial trunked radio ) digital trunked radio communication system is a kind of advanced private mobile communication system and is a radio directed communication system, which can share resource, expenditure and channel equipments, provide kinds of services and have high efficiency

    Tetra數字集群系統是一種高級專用移動通信系統，是共享資源、分擔費用、共用通道設備和服務的多用途、高效能的無線調度通信系統。
  17. Code division multiple access ( cdma ) has rapidly become a leading technology for commercial cellular systems because it has large capacity, good voice quality and big potential of upgrading etc. in 1996, china began the commercial trial of cdma cellular communication network in four cities, beijing, shanghai, guangzhou and xi ' an

    基於cdma （碼分多址）技術的數字蜂窩系統由於具有容量大、音質好、升級潛力大等優點，贏得了廣大消費者及運營商的青睞，在世界各地也得到了越來越廣泛的應用。 1996年，我國首先在北京、上海、廣州和西安四城市進行了cdma網的商用試驗。
  18. In the motion detection a method which is based on time and space is used for it can detect harmful invade object in spite of surroundings inteferre. in addition, after got the image of objects, the rectangle frame technique is used to fill the hole. in my design another part is multi - objects image tracking which is a new technique and it integrates image processing, automatic control and computer science. this technique can automatically acquire objects from image signal, get objects " position information then track them with the aid of dome

    本文中提出了若干有價值的新思想、新方法，完成了以下內容：首先，提出了數字視頻監控的功能結構，描述了數字監控系統的組成、特點和發展現狀；然後研究了適合於跟蹤監控的攝像機坐標系，提出了一種雙角度攝像機坐標以適合本系統的實際應用；討論現場圖像的預處理，其中包括灰度級變換、噪聲濾波和圖像恢復；在運動監測中，比較了幾種常用的運動檢測方法的優缺點，提出了一種基於時域和空間域的圖像檢測方法；另外，在得到運動物體的圖像時，採用矩形框技術填充由於差分圖像造成的孔洞，此方法簡單可靠，有較大的實用性。
  19. The simple control theory used in this field for years ca n ' t meet the new requirement of the system any more due to the higher control target, and a more advanced theory need to be found to support the system with higher complexity, hi contrast with the slow progress of the control theory, the automatic control tool experienced the evolution of pneumatic meter control, centralize data control system and distributed control system has made a great achievement, that is the new net integrated and distributed control system - field bus control system

    控制要求的不斷提高，控製程度的愈加復雜使長久以來在生產中運用的單一的經典控制理論和技術已經不能滿足系統的需求，現代化工業過程式控制制系統迫切地需要高級理論的支撐。與理論發展相對滯后形成對比的是，自動化技術工具的蓬勃發展，在經歷氣動儀表控制、集中式數字控制系統到集散式控制系統后形成了新一代的網路集成式全分佈的現場總線控制系統。
  20. Through this local system, manager can access to the higher level of governmental network system about safety production information. this local system also makes it possible to simultaneously transmit video / audio signals and collect data information through the same hardware device. in addition to its other functions, this system contains a management center that creatively introduced some advanced function model such as the call center, rescue plan for the emergency accidents

    本文充分結合安全生產領域的特定要求，對分散式數字監控系統在安全生產管理中的應用進行了深入研究，首次提出把政府安全生產監督管理功能與企業安全生產監控系統相集成，構建了市（縣）級安全生產管理系統，形成覆蓋全市（縣）的安全生產監控管理數字網路系統；並可進入更上層的政府安全生產信息網路系統；同時實現了通過同一硬體裝置同時傳輸視頻音頻及實時採集的數據信息：在管理中心還創造性地引入了呼叫舉報中心、應急救援決策中心，使該系統能夠切實為安全生產管理部門服務。
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