數字控制通道 的英文怎麼說
中文拼音 [shǔzìkòngzhìtōngdào]
數字控制通道
英文
dcc digital control channel- 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 ...
- 控 : 動詞1 (告發;控告) accuse; charge 2 (控制) control; dominate 3 (使容器口兒朝下 讓裏面的液體慢...
- 制 : 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...
- 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
- 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
- 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
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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。Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影( dsa )成像系統的組成結構和數據流向進行了深入研究和分析,並對系統中的數據流向進行了完整的歸納和總結,給出了x線數字成像系統中的高速大容量數據通道的設計方案;在對sdram的控制方式做了深入探討后,給出了實現大容量多條sdram共同工作的解決方案,在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲;通過對pci總線介面的深入研究,優化後端狀態機設計和低層驅動程序開發,給出了完整的pci介面方案實現高速dma數據傳輸,完全可以滿足視頻傳輸要求;深入研究了基於大規模可編程器件的數字系統設計方法,針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點,提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案,從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。The hardware in this system includes a digital signal processor, an analogy input channel, a lcd, an analogy output path, a keyboard input part, a guard circuit and a logic control circuit
該系統硬體包括數字信號處理器晶元、前向輸入通道、液晶顯示器、模擬量輸出部分、鍵盤輸入部分、保護電路部分和邏輯控制部分。Introduce the digital electronic emitting system. 2
數字控制多通道信號發射系統簡介。Multipoint control untts for audiovisual systems using digital channels up to 1920kbit s
使用2mbit s以內數字通道的視聽系統多點控制設備For digital audio encoding and decoding modules, delta - sigma modulation is introduced and audio data, preambles with accessorial data are multiplexed according to the digital audio interface standard ; for carrier wave, pll frequency synthesizer is used ; for frequency modulation, voltage control oscillator is taken ; for demodulation, pll frequency discrimination is adopted
調制方式,並按照數字音頻介面標準對音頻數據、同步字和附加信息進行通道復用;對于載波信號,採取鎖相環頻率合成技術手段;對于頻率調制,採用壓控振蕩器;對于解調電路,採取鎖相環鑒頻電路。In the following chapters, a 16 - channel experimental phased array ultrasonic testing system is thoroughly explained, including digital beam forming, low noise programmable amplification of received ultrasound signal, multi - channel hi - speed hi - precision data acquisition, hi - speed real - time processing of multi - channel ultrasound signal, and hi - speed data transfer based on pci bus. in addition, the frame of software system is built
本文詳細闡述了作者所獨立研製的16通道相控陣超聲檢測實驗系統,包括數字化超聲發射/接收波束形成、超聲信號的低噪聲程式控制放大、多通道高速高精度數據採集、多通道超聲信號高速實時處理、基於pci總線的高速數據傳輸等全部電路模塊的結構及工作原理,並說明了所編寫的底層軟體系統的框架。Cinematography - multichannel analogue and digital photographic sound and control records on 35 mm motion - picture prints and negatives, and digital sound - control records on 70 mm motion - picture prints and negatives - position and width dimensions
電影攝影. 35mm電影膠片圖和負片上多通道邏輯和數字圖片聲音和控制記錄,以及70mm電影膠片圖和負片上數字圖片聲音和控制記錄.正片和寬度尺寸Digital control channel layer 2
數字控制通道層2Digital control channel layer 3
數字控制通道層3Digital control channel layer 1
數字控制通道層1Abstract : in order to provide the reasonable parameters in the reliability analysis of tunnel structure and the criterion in the quality control of tunnel engineering, in this paper, the over - under - excavated values of the real - state outline of tunnel excavation are obtained by the near - field photographic method. by using mathematical statistic method, the figure features and probability distributions of the over - under - excavated values of the surrounding rock, including deferent positions of same cross section, are analyzed
文摘:採用近景攝影的方法,從隧道開挖毛洞中獲取圍巖超欠挖數據,通過數理統計的方法,分析各類圍巖超欠挖的數字特徵及概率分佈,同時得出各類圍巖超欠挖在隧道斷面不同部位的分佈規律,為隧道結構的可靠度研究提供可靠參數,也為隧道工程質量控制提供基準First of all, the development of the digital trunked communication system is summarized, and the technical characteristics of several prevail worldly digital trunked communication systems are compared. in view of the domestic situation, the tetra digital trunked radio communication system is chosen as the studying and developing model. with the study of control technology of softswitch, the protocol of the v + d air interface and the multiple use of channel is analyzed, the base station control unit of the digital trunked communication system is discussed, the calling control flow is designed
本文首先綜述了數字集群移動通信系統的發展狀況,針對目前國際上流行的數字集群體制的技術特點進行了比較和分析,並根據我國的具體國情選擇了tetra數字集群系統作為研究和開發的重點,結合對軟交換控制技術的研究和分析,對集群系統重要的v + d空中介面協議及其通道復用進行了較為深入的剖析,對數字集群實驗系統的基站控制部分進行了論述,對呼叫控制流程進行了設計。We also select the microchip pic16f877 made by microchip co. ltd as a control chip to realize micro - computer control. this system use three separate channel to find out the " across the zero point " of each back - emf. the program use digital filter to wipe off the pwm interferences and the commutating interferences
系統中採用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點,同時在軟體中採用數字濾波以消除其它噪聲干擾,使檢測電路檢測到的反電勢過零點更加準確可靠,實現了對五位置傳感器直流無刷電機的數字控制。This paper goes on with analysis of the phased array radar calibration theory and compare of different schemes, then the best is adopted. 2 mhz digital circuit mainly composed of dds ( direct digital synthesis ) chip, which carries out the shift of the phase and the limit of the amplitude, has been designed and debugged successfully. it is used to substitute for the conventional phased shift circuit and amplitude limiting circuit which work at the radio frequency, so the all - digital transmit channel of phased shift array radar is achieved
本論文研究的重點是:針對傳統相控陣雷達系統收發( t r )組件中的移相和限幅功能均在射頻段完成,大膽利用直接數字合成( dds )晶元組成頻率在2mhz左右的數字電路代替傳統相控陣雷達在射頻段進行移相和限幅的電路,從而組成全數字發射通道,使對相位和幅度的控制和調試更方便快捷,並設計具體的電路驗證此方案的可行性。2. no interference for advanced apparatus ? remote controller being saled on market works on am fm pcm, generally six - channel apparatus when matching pcm reciever can be digitally modemmed, increased ability of anti - inference can be obtained but possible interference also occurs
現在市面所售的遙控器調制方式有am fm ppm pcm ,一般六通道的設備配上pcm接收機就可以使用數字調制,抗干擾性的確有所增強,但並非不受干擾!Project 25 - trunking control channel formats - new technology standards project - digital radio technical standards
項目25 .中繼控制通道格式.新技術標準項目.數字無線電技術標準Project 25 - trunking control channel messages - new technology standards project - digital radio technical standards
項目25 .中繼控制通道消息.新技術標準項目.數字無線電技術標準On multi - function digital control system
材料試驗機多通道全數字控制系統Many instruments can compose can ( controller area network ) is widely applied in industrial field because its excellent performance and reliability. can bus provides supports a data bus for communication
Can總線( controllerareanetwork )即控制器局域網,由於其卓越的性能,極高的可靠性,獨特靈活的設計和低廉的價格現已廣泛應用於工業現場,為工業通訊提供了一條全數字化的通道。分享友人