時鐘接收機 的英文怎麼說

中文拼音 [shízhōngjiēshōujī]
時鐘接收機 英文
clock receiver
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 鐘 : Ⅰ名詞1 （用銅或鐵製成的響器） bell 2 （計時器） clock 3 （指鐘點、時間） time 4 （沒有把兒的杯子...
  • 接 : Ⅰ動詞1 （靠近;接觸） come into contact with; come close to 2 （連接; 使連接） connect; join; put ...
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 機 : machineengine
  • 時鐘 : [電學] [半] clock時鐘計數器 [自動化] clock counter
  • 接收機 : receiver; radio set; receiving set; receiving machine接收機保護設備 reprod; 接收機保護裝置 receiver protector
  • 接收 : 1 （收受） receive; reception; accept; [電學] receipt; receiving 2 （接管） take over; expropriat...
  1. Some message described in the thesis, such as the basic structure of gps - oem, the consists of positioning system, the binary format of almanac and ephemeris, the method and the skill of processing orignal data through singlechip, and so on, is very useful for studying gps and its applications in integrated navigation, and re - development on gps - oem

    同時亦可與gis （地理信息系統）配套使用，實現在crt上地圖背景下的運動軌跡顯示。第二個產品， gps時鐘/同步系統，利用全球衛星定位gps衛星的標準utc時間，可在全球得到同步的準確時間。設備採用motorola的12通道gpsoem接收機。
  2. Gps is a planet wireless conductance system which is global and all - weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation

    利用gps授時信號全方位、全天候、連續性、實時性和高精度的特點，以gps信號為基準來校準本地時鐘（晶體振蕩時鐘或原子鐘） ，將gps接收機輸出信號的長期穩定度和恆溫晶振的短期穩定度相結合，應用大規模可編程邏輯器件，設計和實現了由pc104控制的實時在線授時系統。
  3. The precise clock source is crystal oscillator made of 74hc04 ; the mute circuit can conceal the error and solve the problem of noise ; the antenna switching circuit in the receiver is to select one antenna from two which receives signal better. it can improve the quality of the receiving audio signal, restrain the noise effectively and promote the system performance

    高精度的時鐘源是由74hc04構成的晶體振蕩器;靜音電路將出錯的音頻信號進行差錯掩蓋，很好地解決了噪聲問題;接收機採用兩副天線切換工作，提高了音頻信號接收質量，有效地抑制干擾，提升了系統的性能。
  4. In the project, the work completed by the author is as followed : ( 1 ) answer for events " transmition, which are transmitted to application programs, and correspondly dealt ; ( 2 ) answer for all of the handware drivers, included lcd display driver, flash driver, e2prom driver, sound driver, gsm status monitorer driver, keyboard driver, uart driver, real - time controller driver, hung - up monitorer driver ; ( 3 ) answer for all problems related with hardware drivers ; ( 4 ) answer for the tools for write data to flash, such as programs, font libraries

    該項目中，本人完成了以下幾方面的工作： （ 1 ）負責所有消息的驅動，使上層應用程序能夠接收到底層硬體設備產生的消息，並做相應處理； （ 2 ）負責所有硬體驅動程序的設計和調試。驅動程序包括lcd顯示驅動、 flash驅動、 e ~ 2prom驅動、聲音驅動、 gsm模塊狀態監控驅動、鍵盤驅動、串口驅動、實時鐘驅動、電源管理、摘掛機檢測驅動，共10部分。 （ 3 ）負責解決遇到的所有與驅動相關的問題。
  5. It ' s design and implement are excellent illustration of part i. our design is based on 8051 - like mcu, using veridicom fps110 as fingerprint sensor, adding lcd and keyboard as hmi, and an isa adapter to communicate with host

    該系統以8051mcu為控制核心，以fps110為指紋傳感器，配置lcd顯示器、鍵盤、實時時鐘。終端通過isa總線擴展卡與pc機通信，接收pc機的命令。
  6. Parallel structure of poly - phase decomposition and parallel mixer is applied in the ddc circuit, it solves the bottleneck in mixing and increases the handle speed. the partition of the tuning channel according to the digital mixing sequence, and the ddc by means of decimating first, the low - pass filtering and mixing realize efficiently the down - conversion of the variable carrier frequency band - pass signal. according to the structure of the ddc and the requirement of the frequency

    短數據快速測頻演算法的具體實現:使用并行流水線的設計方法，提高了系統的數據吞吐率，在100mhz的系統時鐘下，能夠實時處理400mhz ~ 600mhz速率a / d采樣的數據，在64點采樣， 100mhz系統時鐘情況下，初次測頻佔用時間640ns ，以後每次測頻佔用時間縮短到160ns ，實時地提供多相濾波下變頻所需的載頻位置信息，縮短了接收機的調諧時間。
  7. If no measures are taken, the serious basic - line - shift as well as the loss of chip clock and the difficulty of the data recovery will be introduced in the optical receiver, which causes the communication to go along abnormally

    如果不採取任何措施，會給光接收機帶來嚴重的基線漂移，同時會引起碼時鐘丟失和碼元恢復困難等一系列問題，導致通信無法正常進行。
  8. Make clear the procedure of sending and receiving packet of kernel and the implementation of traffic control. the special mechanism in linux such as wait queue, task queue, time interrupt is also explained. after analyzing the file system of linux at large, we bring forward the design of modifying of file system. since many little file is created during the service of email and file service, we introduce the non volatile random access ram, by modifying the arithmetic of file system, changing the data flow of file system

    本文詳細介紹了針對網路專用服務器的專用linux系統的設計，對linux文件系統進行了詳盡的解析，包括vfs的實現， buffercache的作用等；並對塊設備驅動程序在內核中各個介面進行了分析；解析了內核接收和發送數據包的全過程以及流量控制在內核中的全過程；並對linux系統的一些特殊的機制如等待隊列，任務隊列，時鐘中斷等進行了詳細的解釋。
  9. This paper gives a time - synchronization technique bases on gps time service signal which is used in broad band seismic recorder 。 by world coordination time offered by gps - - utc ( usno ), adjust local clock base on gps signal, gain high nicety clock signal, clock precision reachs 10 - 6 。 this clock is the time source of broad band seismic recorder, bring the whole seismic recorder works in same time base. 1pps time base with high stability can be used as in - phase, spring, time and start - stop of every collection mode, while the scale under second make a precise time mark to receive data of broad band seismic recorder

    針對接收機中gps信號的噪聲進行kalman濾波軟體處理， kalman濾波可以對gps信號與本地晶振時鐘的時差數據在大噪聲中進行平滑，在較短時間內估計出高精度的時差數據。系統消除了gps秒脈沖信號的ms級隨機誤差，把晶振秒脈沖的長期穩定度鎖定到gps信號的穩定度上;在gps信號失效時給出了可行措施，能夠保證在任何情況下產生一個穩定、高精度秒脈沖信號，誤差在1 s內。
  10. Chapter three provides synchronization algorithms in dvb - t cofdm receiver, including symbol timing recovery, carrier frequency error estimation and sampling timing recovery. chapter four introduces some channel estimation algorithms based on interpolation in dvb - t receiver. five estimators are compared, in terms of mean - squared error both in rayleigh channel and ricean channel

    第三章首先討論了由於載波頻率偏差、符號定時偏差和采樣定時偏差對ofdm系統所造成的影響和干擾，然後針對dvb - t系統的cofdm接收機方案，分別給出了符號定時同步、頻率同步以及采樣鐘同步的實現演算法，並對它們的性能進行了分析模擬。
  11. In addition, nodes in the system need be synchronized periodically to properly work, where dgps also plays an important role. the 1pps ( one pulse per second ) signal output from dgps provides an easy way to accurately time using an ordinary clock

    此外，系統的各節點需要同步工作，而dgps接收機此時同樣起到了重要的作用，其輸出的秒脈沖（ 1pps ）信號使系統只利用一個普通的時鐘就實現了高精度的同步。
  12. The radio frequency receiver supports interface for instrument and base station and air interface for mobile station, and it takes the task of magnifying low noise and down - convert and digital baseband processor filtering and magnifying intermediate frequency to reverse link signal. the digital baseband processor samples the received signal after down - convert radio frequency signal to intermediate frequency signal and processes other processing and supports interfaces to computer, next sends data to computer. the gps receiver supports interface for instrument and gps system, and receives gps system signal, next it demodulates the correlative information and sends out benchmark clock signal we need

    射頻接收部分主要為儀器和基站、移動臺提供空中介面，其主要任務是在反向鏈路上對接收到的射頻調制信號進行低噪聲放大、射頻下變頻變換、中頻濾波放大等;數字基帶部分為對接收信號變頻為中頻后進行a / d采樣，以及其他的rsp處理並和計算機提供介面，將數據送至計算機進行后臺處理、顯示等; gps接收機部分為儀器和gps系統提供介面，接收gps系統信號並解調相關信息，輸出所需的電文及時鐘基準信息等。
  13. Abstract : a method by using 8031 single - clip microprocessor to get the syntonical bit information is presented, based on the characteristic of the modulated singal in ascending cosine envelope. the timer is locked at the maximum of the wave peak. the experiment results indicate that this method is feasible for 2 400 bps system

    文摘:利用升餘弦包絡調制信號的特點，即基帶信號為升餘弦波，接收端可以利用這一包絡，從中提取定時信息.提出了一種將時鐘鎖定到包絡峰值最大點的單片機實現的方法，從而完成了在接收端正確提取定時信息的任務
  14. The computer receives a command when the user clenches his or her teeth for about one second - - which differentiates the action from other activities such as chewing gum and talking

    當人們咬緊牙約一秒鐘時，微型計算機就能接收到一個指令。而這里所說的咬緊牙與嚼口香糖和說話等活動是不同的。
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