transmission band 中文意思是什麼

transmission band 解釋
傳輸帶
  • transmission : n 遞送；傳遞；傳達；傳染；移轉；【機械工程】傳動；傳遞；變速器；聯動機件；【無線電】傳送；發射；...
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  1. Also designed this part of correspondences procedure process and procedure codes. the thesis takes a simple introduction about the data transmission on base band

    論文對數據基帶傳輸編碼做了簡單介紹，闡述了數字基帶信號的碼型選擇的原則。
  2. The main contributions of this dissertation include : introduce the basic concept and class of pcma and then set up the base band transmission model

    本文承擔的主要工作如下: 1 、介紹pcma技術的基本概念與分類，分析其原理，然後建立了系統的基帶傳輸模型。
  3. Because of huge data quantum and high demand of channel bit error rate for video transmission, and fallibility, time variability and limited band of wires channel, wireless video system is faced with lots of problems

    由於視頻業務的數據量大、對誤比特率要求高，無線通道又具有易錯、時變和帶限的特點，因此通道的誤比特率要比有線環境大得多，且隨著基站和終端位置、方向的改變而變化很大。
  4. Elliptical waveguides have found wide applications in a variety of microwave components : waveguide filters, radiators, resonators, and wide - band transmission lines, etc. periodic - loaded waveguides play very important roles in high - power microwave tubes, corrugated antennas and linear accelerators

    在各種微波器件如濾波器、輻射器、諧振器和寬帶傳輸線中橢圓波導有著廣泛的應用。周期加載波導在高功率微波管、波紋喇叭和線性加速器等中起著重要作用。
  5. Through measuring the value of infrared radiation when the complex decoy is burning, it is concluded that the complex decoy ' s energy of infrared radiation is much more than the substrate ' s. through researching the performance of microwave radar ' s transmission and refection within the band of 3mm and 8mm, it is proved that the interference with radar is feasible

    在復合誘餌劑的性能測試方面：對制備出的復合誘餌劑燃燒時的紅外輻射展開研究，發現了復合誘餌劑的紅外輻射能量比基片的紅外輻射能量有很大的增加；開展了對3mm 、 8mm波段毫米波雷達的透射與反射性能試驗，證明了該誘餌劑干擾雷達波是可行的。
  6. Chapter 3 treats the algorithm implementation of demodulator in the receiving asic of dvb - s. in detail, demodulation includes carrier recovery and symbol synchronization. together with the transmission characterization of band - limited input signals the chapter proposes a scheme for implementing carrier recovery loop

    解調具體分為載波恢復、時鐘同步兩大部分，本章著重論述了載波恢復的原理並結合dvb - s輸入信號傳輸特性，提出了相應的實現方案，對部分電路進行了性能分析。
  7. This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

    本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。
  8. Employing the interlaced scanning, current tv system can compress the frequency band of tv signal effectively and facilitate transmission. but this method reduces the scanning lines of pictures and the frequency of the field. it leads the pictures displayed on tv to have such disadvantages as large area flicker, edge flicker, interlace flicker, raster visibility and creeping line etc. to satisfy people " s vision feeling better, the big - screen, multi - function and high quality tv - set have been made great progress

    現行的廣播電視系統由於採用隔行掃描方式，從而有效地壓縮了電視信號的頻帶，有利於傳輸；但由於這種方式使得圖像的掃描行數少，場頻低，導致了重顯的電視圖像有大面積閃爍、邊緣閃爍、行間閃爍、行結構可見及行爬行等。
  9. Modems for data transmission at 48 kilobits per second using 60 108 khz group band circuits

    用於60 108khz基群電路的48 kbit s數據傳輸的數據機
  10. Generally, the designed channel spacing of itu - t standard in wdm systems is from 0. 8nm to 1. 6nm, which is much larger than the spacing required by actual communication bandwidth. for example in lightwave transmission systems, a sghz channel occupies only 0. 04nm at the wavelength band of 1. 55 n m. thus, most of the bandwidth in the actual transmission systems may be wasted

    Itu - t標準中wdm系統設計的通道間距為0 . 8nm - 1 . 6nm ，這遠遠大於實際使用的通道帶寬，例如一個帶寬為5ghz的通道在1 . 55 m波段只佔據了約0 . 04nm的波長范圍，因而導致大部分的帶寬被浪費。
  11. So, in order to discover essential properties, the paper focuses on deep study upon the wave forces over submerged dyke and transmission coefficient considering the band protecting and silt promoting project in shengli oilfiled, which may be used for real engineer

    本文以潛堤為研究對象，通過物理模型試驗的方法，分別研究了在規則波作用下潛堤的波力特性和透射特性。
  12. Services included c - band satellite tv transmission, international satellite earth station tv transmission and video conferencing

    包括Ｃ頻段衛星電視傳送、國際衛星地面站電視傳送和會議電視業務。
  13. One of the key technologies of deep space communication is channel code. there are differences between deep space communication and the common space communication. because the former one has some characteristics, such as extending information transmission, and seriously reducing signal energy, it is necessary to ensure the information transmission band and the exactness by using the special means

    通道編譯碼是深空通信中的關鍵技術之一，深空通信與一般的空間通信不同，深空通信具有信息傳輸時延大、信號能量衰減嚴重等特點，必須有特殊的手段保證其信息傳輸的帶寬和準確。
  14. The most convenience of the wlan service felt by news reporters, the main users, is that in the reporting rooms on the stand or in their working rooms, they can directly send text manuscript and images screened by digital camera to the newsroom through wlan wide band network. in the past, this is usually done when they come back to hotel or the news center to dial on the net. so the wireless wide band network service greatly reduced the time during which the reporters must wait for manuscript transmission

    記者作為這次wlan業務的主要用戶，他們感受到的主要方便之處在於：在看臺記者席、記者工作間可以直接通過wlan寬帶無線網路將文字稿件和數字相機拍攝的圖片發送到編輯部，而在此前記者多是回到旅館或在新聞中心利用電話撥號上網發稿，無線寬帶上網業務極大地縮短了記者的發稿等待時間。
  15. The satellite - telecommunication has a serial of characteristic such as long distance, large coverage area, wide communication band, big transmission capacity, high quality, it has made a rapid progress in the last decades and become one of the most powerful communication methods today

    而衛星通信具有通信距離遠、費用與通信距離無關、覆蓋面積大、不受地理條件限制、通信頻帶寬、傳輸容量大、適于多種業務傳輸、可進行多址通信、通信質量高等一系列特點，幾十年來獲得了迅速的發展，成為現代強有力的通信手段之一。
  16. This thesis is based on the reform of the sichuan wide band transmission net

    四川省寬帶傳輸網dwdm光纜通信系統工程是四川省電信公司重點建設項目。
  17. Methods of measurement on receiving antennas for satellite broadcast transmission in the 11 12 ghz band. part 2 : mechanical and environmental tests on individual and collective receiving antennas

    11 12 ghz波段衛星廣播發射用接天線的測量方法.第2部分:專用和共用接受天線的機械和環境試驗
  18. By using optical cable communication methods, which have advantages of great information transmission capacity, rapid velocity, wide frequency band, strong anti - jamming capability, low circuitry loss and easy construction, modern sky - wave over - the - horizontal radar can achieve information transmission and system control of full coherent radar, which has excellent abilities of security, stabilization, anti - jamming and anti - destruction

    通過採用光纖傳輸技術，利用其信息傳輸容量大，速度快，頻帶寬，抗干擾能力強，線路損耗低，易於施工等特點，實現全相參雷達的信息傳輸和系統控制，具有優良的保密性，穩定性、抗干擾性和抗摧毀能力。
  19. Digital tv qpsk modulation in the treatment of the data flow of energy to deal with the proliferation of randomization, rs codeconvolution interleave contraction coding, modulation before forming the base - band processing to ensure that the data transmission performance

    Qpsk數字電視調制器在對數據流的處理上採用能量擴散的隨機化處理rs編碼卷積交織收縮卷積編碼調制前的基帶成形處理等，保證了數據的傳輸性能。
  20. Many advantages make optical fiber suitable used as transmission medium of high - rate broadband services, such as broad transmission band, large capacity, low loss, strong immunity to interference etc. among optical access network, passive optical network ( pon ) is paid more attention throughout the world. it offers easily upgraded and low cost of lay, ope ration and maintenance. especially passive optical network based on atm ( atm - pon ) integrates the capability of supporting multiple qos services with atm and transparent transmission with pon

    在光纖接入網中，無源光網路（ pon ）由於不採用有源節點、敷設和運行維護成本低且成本共享、對業務透明、易於升級等優點而備受世界各國的關注，特別是以atm為基礎的無源光網路（ atm - pon ） ，由於結合了atm多業務、多比特率的支持能力和pon的透明寬帶傳送能力，將成為實現未來寬帶接入乃至最終實現ftth的重要方式。
分享友人
分享到 Line

分享到臉書