數字有線通道 的英文怎麼說
中文拼音 [shǔzìyǒuxiàntōngdào]
數字有線通道
英文
digital line path- 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 ...
- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 通 : 通量詞(用於動作)
- 道 : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
- 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
- 有線 : wired有線傳真 wirephoto; 有線電報(術) wire telegraphy; 有線電話 electrophone; line; telephony; ...
- 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
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2. the design of program searching and parsing and de - mux module, which are the application software of the stb, are discussed in this dissertation. 3
利用hi2011晶元及其提供的開發軟體包進行了有線電視數字機頂盒的應用程序開發,即節目搜索及節目提取程序的設計和解復用通道的軟體設計。According to time of operation, the buses are divided as follows : numbers that start with " 2 " are morning and evening rush hour buses, numbers that start with 3 are night buses ; according to location, buses are divided as follows : puxi buses, pudong buses, buses that cross the river including tunnel and bridge lines, and suburban area buses [ 700s & 900s ] ; according to payment method, the buses are divided into : single - ticket rmb 1 ( lines of 13 kilometer or less from end to end ) and rmb 1. 5 ( lines of 13 kilometers or more from end to end ) ticket - sellerless buses ( most two digit city buses and three digits buses starting with " 1 ", " 2 ", " 7 " are of this kind ; no change will be made, but terminal stations and hubs will have rmb 1 and rmb 1. 5 ticket booklets for sale, 50 non - refundable tickets per booklet ), and also single ticket rmb 2 air - conditioned buses and scaled - price ticket special lines ( including specialty coach lines starting with " 5 ", pudong specialty lines starting with " 6 ", mid - size coaches that start with " 8 ", double - decker buses and air - conditioned coaches that start with " 9 ", as well as the ten air - conditioned tourism lines [ and airport buses ] )
按運營時間分,有:日間公交車、 「 2 」字頭的早晚高峰車和「 3 」字頭的夜宵車;按地域范圍分,有浦西的、浦東的、過江的(含大橋、隧道線)和郊區線;按票務方式分,有單一票價1元(全程13公里以下的線路)或1 . 5元(全程超13公里的線路)的無人售票車(市內公交號碼為兩位數的或三位數中「 1 」字頭、 「 2 」字頭、 「 7 」字頭的線路絕大多數是無人售票車,自備零錢,不找零,公交終點站、各主要交通樞紐均有1元和1元5角兩種面值的公交預售票出售,每本50張,售出不退) ,還有單一票價2元的空調車和多級票價的專線車(有「 5 」字頭的大巴專線、 「 6 」字頭的浦東專線車、 「 8 」字頭的中巴專線和「 9 」字頭的雙層車或空調大巴,還有十條空調旅遊專線) 。The techniques of the barometric height measurement are researched, which is calibrated by gps information and compensated by temperature information. the barometric height measurement channel of high resolution is designed with the help of curve - fitting and digital filtering algorithm
研究了利用gps校準零點、帶溫度補償的氣壓高度測量技術,通過曲線擬合與數字濾波技術,設計了具有較高解析度的氣壓高度測量通道。Company now have independence develop ten many china patent and many independence intellectual property ' s software copyright ' s product ; company major product : cable television consumer management control system ( but look for address 2 - 8 branches allot style, 8 - 32 gather line style ) ; shoot frequently plus unfasten harass system ( crowd plus crowd unfasten, cent two sections, point channel shan unfasten ) ; video frequency number subsections plus unfasten harass system ; cable television network burglarproof sow system ; number cable television product is with number mmds ( microwave ) systematically ; general purpose type prevent thunder supply electric appliances, shoot frequently automate supply electric appliances, but look for address control supply electric appliances ; power supply prevents thunder protection product ; pass flow branch, dispenser, split utensil, cavernous wave utensil, power supply inserts utensil, but transfer attenuator, but transfer equalizer wait for
目前擁有十多項中國專利和多個自主知識產權的軟體版權的產品;公司主要產品:有線電視用戶管理控制系統(可尋址2 - 8戶分支分配式、 8 - 32戶集線式) ;射頻加解擾系統(群加群解、分兩段、按頻道單解) ;視頻數字分段加解擾系統;有線電視網路防盜播系統;數字有線電視產品與數字mmds (微波)系統;通用型防雷供電器,射頻自動控制供電器,可尋址控制供電器;電源防雷保護產品;過流分支、分配器,分流器、陷波器、電源插入器,衰減器、均衡器等。The channelized digital receiver based on srd is the electronic equipment, which can be used in communication and military affairs, because of its excellence on wide band frequency coverage, digital processing, software programming, high dynamic range, receiving signal with all probability, simultaneous signal detection and so on
基於軟體無線電思想的通道化數字接收機是一種即可用在通信領域也可用在軍事領域的電子設備,具有大帶寬、數字化、軟體化、大動態范圍、全概率接收、多信號同時處理等優點。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
在指數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制數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。In the second chapter, the theory of vsb is described. following that, the theory and algorithms of the main functional receiving components for our transmission draft are described in detail and analyzed deeply. these algorithms are applied in the chip successfully
第二章,首先講述vsb的調制原理,然後針對我們提出的數字電視傳輸方案下的有線通道接收晶元的各個主要功能模塊的實現原理和採用的演算法進行了較詳細的敘述和較深入的分析,這些演算法在本晶元中得到了成功的應用。It is necessary in digital communication system that carrier recovery can compensate frequency offset and phase jitter brought by transmission and modulation. this paper is mainly focused on carrier recovery technique. we introduce the channel model at cable headed and receiving site. firstly, we introduce the principle of carrier recovery and give some algorithms of them, which are directed - decision, reduced constellation and frequency sweeping
本論文緊緊圍繞著數字通信系統中的載波恢復技術,在介紹了有線通信系統所用的調制解調通道模型后,首先闡述了載波恢復技術的思想和基本原理,在此基礎上給出了三種載波恢復演算法,即判決導向演算法、簡化星座判決演算法和掃頻演算法,並且給出了其各自的模擬圖:然後深入研究了一種適合高階qam並且能糾正較大頻偏的載波恢復技術:極性判決演算法。Digital line path
數字有線通道Advanced fpga technology is introduced to improve the integration of digital circuits, and all digital circuits in the original module are integrated in the fpga chips, which could not only reduce the cost, but also improve the reliability and measurement precision of the circuits. high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi, analyze and execute the commands, harmonize each section of the module and process the data. higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically
本文在原有vxi總線四通道計數器模塊的設計基礎上,通過對原模塊缺陷的分析,採用一些新的技術和新的電子器件來重新設計該計數器模塊:採用最新的fpga技術來提高數字電路的集成度,將原模塊中的所有數字電路全部集成在fpga晶元中,這樣不僅能節約成本,還能提高電路的可靠性和測量精度;採用高速的數字信號處理器( dsp )取代原有的單片機作為協處理器,來接收vxi發來的各種命令,分析命令、執行命令、協調模塊各部分的工作以及對數據的處理;採用轉換速率更高的比較器晶元將輸入的被測信號轉換為fpga晶元能夠識別的方波信號,能極大提高測量頻率的范圍;採用d / a轉換晶元和隔離運算放大器得到隔離通道所需的比較電平,該比較電平值能夠根據實際需求進行設置,能增強模塊的使用靈活性。According to request that military put forward, the target car that subject research should have such characteristics as remote control, high precision, good safeguarding, needing no track, etc, so as to achieve purpose of course require correctly when training to carry on cannon static to static, static to move, move to static, move to move etc. target car transfer speed require low inertia, high accuracy, high dependability, stupid and getting excellent and kind systematically ; wireless communication system expect much dependability, better anti - interference ability ; computer control system demand and try one ' s best to adopt advanced technology, components and parts source of goods reliable, high dependability, structure to be simple, have serial communication, digital display, systematic trouble examine and function of showing etc. the job of this thesis is divided into three major parts : the proposition and confirming of the electric power pulls, specification requirement and selecting type of equipment of communication system, sureness of the computer control system scheme
根據軍方提出的要求,本課題研製的遙控坦克靶車應具有遙控、精度高、維護性好、無軌道、自帶動力等特點,以達到訓練時進行火炮或導彈靜對靜、靜對動、動對靜、動對動設擊等課目的要求。靶車調速系統要求低慣性、高精度、高可靠性、魯棒性好;無線通訊系統要求高可靠性、抗干擾能力強;微機控制系統要求盡量採用先進技術、元器件貨源可靠、高可靠性、結構盡量簡單,具有串列通訊、數字顯示、系統故障自檢及顯示等功能。本文的工作分為三大部分:電力拖動方案的提出及確定、對通訊系統的技術要求及設備選型、微機控制系統方案的確定。In the point of - information theory ; - the - baseband binary pulse amplitude modulated ( pam ) signal transmission, via turning the nonlinear receiver ' s parameters, is studied over an additive white gaussian noise ( awgn ) channel. it is demonstrated that the channel capacity of binary communication systems, for a given signal added noise, can be maximized by optimal designed receivers. this new form of sr is referred to as psr in a broad sense
本文研究並設計了含有雙穩態隨機共振系統作為一個接收裝置的基帶數字通信系統,在加性高斯白噪聲通道中,通過研究這個非線性接收器的性能,發現了數字信號傳輸中存在的參數調節隨機共振現象?通道容量隨著系統響應速度的增加具有一個共振峰值,並對這種非線性現象發生的基本機理進行了解釋。Specification of framing structure, channel coding and modulation for digital cable broadcasting system
有線數字電視廣播通道編碼與調制規范So as to train high - quality, application type the international scientific and technological personnel for chinese higher education, microsoft asia research institute will held together with ucla institute of pure mathematics and applied mathematics the first phase of the students summer training camp in the summer of 2007
自1998年成立以來,微軟亞洲研究院已成為國際頂尖的計算機研究機構,擁有在數字多媒體、多通道用戶界面、無線及網路、數字娛樂和信息檢索等領域的300多位優秀的科研人員,在國際一流學術刊物和會議上發表論文1500多篇。We will discuss the construction of a digital transmission system with high bandwidth efficiency and good error rate performance. in the condition of 25khz wireless channel
本文主要討論在25khz通道條件下建立一個具有高帶寬效率和較好誤碼性能的無線數字傳輸系統。This thesis studies in adaptive equalization problems, and put the emphases in various adaptive equalizers, channel model, etc. finally, the performance of the presented blind equalizer which are used in digital microwave radio channel are compared and evaluated. the results are of great important in the development of more spectral efficient digital microwave radio - links. the focus is set on low - complexity adaptive equalizers for implementation in digital microwave radio systems
本文圍繞著自適應均衡技術進行了深入的探討,重點研究了自適應均衡演算法、通道模型等問題,並針對幾種盲均衡演算法應用於數字微波無線通道的均衡性能進行了模擬和比較,其結果對于開發具有更高頻譜利用率的數字微波通信鏈路有著重要的指導意義。Some digital technology are applied to this system, such as pocket pc data processing system and gprs wireless communication system. the monitoring system has the advantage of compactness, easiness of installing and fast speed of communication. the pipeline leak detection and location monitoring system can be widely applied to water pipeline, oil pipeline and gas pipeline
介紹了一種新型的管道泄漏檢測定位報警系統,該系統應用了掌上電腦數據採集分析系統gprs無線數字通訊系統等數字化信息化技術,使得檢測單元具有體積小,安裝簡便和數據傳輸快捷並且佔用通訊資源少等特點,這種新型的管道泄漏檢測定位報警系統可以廣泛應用於輸水輸油和輸氣的管道。This high speed digital test module is based on the vxi bus structure and specified on multi - channel and high speed aspects ; it is also capable of generating the stimulant signal and collecting the responded data ; meanwhile because the relationship between stimulation and response can be programmable, the module is highly intellective and it helps the testing system work more automatically ; what ' s more, with the good functions like real - time comparison, branch, single step, pause, trigger, it makes the testing more efficient as well
本實驗室設計實現了高速數字測試模塊,該模塊是採用vxi總線結構的儀器,具備以下功能:多通道,高速度;同時具備產生激勵信號和採集響應數據的能力;能夠通過編程在激勵和響應之間建立起因果聯系,使整個測試過程體現出一定的智能性,大大提高測試系統的自動化程度;具有實時比較,實時跳轉,單步,暫停,觸發等功能,使測試過程更加快速和靈活。分享友人