clock source 中文意思是什麼
clock source
解釋
時鐘脈沖源-
A passionate, global team of open source developers are working around the clock on a standard, certified server that you can download and use freely - with no obligation to contribute back in any form
在全球范圍，熱心的開放源碼開發人員圍繞著一個標準的經過認證的服務器進行工作，您可以免費下載和使用這個服務器，而不必承擔以任何形式提供回報的義務。 -
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。 -
The concept of " timing " in the article is not the clock in our ordinary living, but syntheses which is made up of some frequency source in the signal generator ( such as cs atom frequency standard, rb clock & high accuracy quartz crystal oscillator ) which produces the primary frequency, the matching input interface and the matching output interface and controlling circuit etc. for example, bits is a kind of timing equipment, which is used to control the timing of some functions
本文論及的「時鐘」概念不是指日常生活中使用的鐘表，而是由產生基準頻率的信號發生器（如銫原子頻率標準、銣鐘及高精度石英晶體振蕩器等）中的某種頻率源以及相配套的輸入、輸出介面和控制電路等組成的一整套具有特定同步定時功能的綜合體。如bits就是一種時鐘設備，它提供用在通信系統中控制某些功能的定時的時間基準設備，時鐘提供的信號稱為基準信號、定時信號或同步信號。 -
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive - applied technique
固定頻率源可以在在通訊系統和雷達系統中作為本機振蕩器，也可以作為數字電路的基準時鐘信號，因此得到了廣泛的應用。 -
Computer monitor changes in source water quality around the clock, to be informed and respond immediately
全天候電腦監測水源水質變化，隨時掌握即時因應。 -
The actively mode - locked erbium doped fiber laser is very attractive among those potential sources which can generate broadband tunable near transform - limited pulse with high repetition rate and has been used as the ideal optical transmitter and all optical clock source in the future long - distance communication systems
對于高速光纖通信系統而言，能輸出高重復頻率的、近極限超短脈沖的主動鎖模光纖激光器被認為是未來遠程無中繼光纖通信系統的理想光源。但其難點是工作穩定性問題。 -
Finally the timing problems in high - speed circuit design were analyzed and the conditions of timing design in source synchronous clock system were derived
最後分析了高速電路設計中時序問題，給出了源同步時鐘系統中時序設計應該滿足的條件。 -
The signal collecting system of singlechip collects the signals from generator. the paper introduces the every part of the singlechip. the key component is a 8051cpu, its surrounding circuits include dc power source, simulating signal collecting circuit, digital signal collecting circuit, a / d converting circuit, clock generating circuit, counting frequency circuit, controlling circuit, communicating circuit, and some other circuits
前臺單片機採集系統完成對發電機組多信息量的採集，本文詳細介紹了電路設計，系統的核心器件為8051cpu ，其外圍電路包括電源電路、模擬信號採集電路、 a d轉換電路、數字信號採集電路、時鐘發生電路、測頻電路、控制電路、通訊電路等。 -
Clock pulse source
計時脈沖源 -
Design and implementation of self - control clock based on gps time source
時間源的自控時鐘的設計與實現 -
Though the system time can be used as a clock, soundcards and other devices provides a better time source
雖然系統時間可以作為時鐘，但是聲卡和其他（硬體）設備提供了更好的時間源 -
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。 -
" the hong kong watch and clock fair not only provides a marketplace for participants to source new products and conduct business, but also an opportunity to get an update on the latest developments in the industry, " said co - chairman of the hong kong watch and clock fair 2000 s organising committee, mr ng kong sang. the fair had successfully developed into the largest watch and clock trade fair in the world which drew a total of 15, 595 quality trade visitors from all over the world
香港鐘表展2000籌委會聯名主席吳江生表示：香港鐘表展不單只為業內人仕提供一個采購新產品及洽談業務的理想場合，並且為他們提供交流業內最新資訊的機會。展覽時至今日已發展成為全球最具規模的業內展覽活動，備受國際業者重視。 -
Abstract : this paper analyses the source of power, the advantage and disadvantage of some low - power logic styles, and how to decrease the power on voltage and clock
文摘:分析了功耗的產生原因和幾種不同的低功耗電路結構的優缺點。論述了如何從電源設計、時鐘管理等方面降低功耗。 -
The hardware system includes power supply circuit, clock reset circuit, jtag model building circuit, decoding circuit, memory interface circuit, man - machine interface circuit and numeric control constant - current source interface circuit
硬體系統主要包括電源電路、時鐘復位電路、 jtag模擬介面電路，譯碼電路、存儲器介面電路、人機介面電路、 adc轉換電路和數控恆流源介面等。 -
Qe1 achieve the whole synchronization by software and hardware. during the course of the initialization of the qe1 system, the chip pm4354 can accomplish the task of synchronization of bit, frame and multiframe after the chip initialization by the software. after pm4354 accomplishes the bit synchronization, qel will read the status registers of the pm4354 to get the status of each el circuit and choose recovered clock of the specified the el circuit as the external timing source of the whole htc - 5200an equipment
Qe1系統在系統初始化時，通過軟體完成對硬體晶元pm4354的初始化工作后，便可利用該晶元完成4路e1的同步（位同步、幀同步和復幀同步） ；在pm4354完成時鐘提取的任務后， qe1通過不斷地訪問pm4354的狀態寄存器，獲得每路e1的狀態信息，在時鐘源的選擇原則下，選擇指定e1線路的恢復時鐘作為整個htc - 5200an節點設備的外部參考時鐘，從而解決了htc 5200an的中繼板卡由e1變為qe時所帶來的網同步時鐘源。 -
This paper have discussed in detail the automtibile that becomes by pic single flat organization travel the basically working principle of recorder systematic overall design, the interface design of memory and single flat machine, the interface design of the single flat machine and clock of real time, speed sensor design and the small - sized switch design of power source, systematic hardware and software realization method, as well as software process and data form the design of the user interface stipulated
本文詳細論述了由pic單片機構成的汽車行駛記錄儀系統的整體設計、單片機與存儲器的介面設計、單片機與實時時鐘的介面設計、速度傳感器設計、小型開關電源設計的基本工作原理，系統硬體及軟體實現方法，以及軟體流程、數據格式約定和用戶界面的設計。 -
Aiming at the scheme of the signal electromagnetic environment simulator of the wireless communication system, the mission of this project is to design and realize twenty - four frequency synthesizers, which must meet high expectation for the phase noise characteristic and the spurious repression characteristic of the output clock signal. these frequency synthesizers provide the moving of the basic signal generating modules to radio frequency with stable inspiring source
本課題的任務是針對通信信號電磁環境模擬器系統的方案要求，設計實現24個（頻率分佈在260mhz 1430mhz之間）對輸出時鐘信號的相位噪聲特性、雜散抑制特性等要求都很高的頻率合成器，為基本信號生成模塊到射頻的搬移提供穩定可靠的激勵源。 -
To speed up the synchronization, multi - phase clocks can be used in combination with the parallel sliding relevance searching method to select the best clock source
為了提高快速同步的速度，可以利用多相位的時鐘，採用并行的滑動相關搜索方法，來選擇最佳時鐘源。 -
The frequency synthesizer is also applied as clock source for adc
本系統已經完成了電路圖的設計以及系統的模擬。
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