接收機的定時 的英文怎麼說

中文拼音 [jiēshōujīdedìngshí]
接收機的定時 英文
receiver timing
  • 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
  • 的 : 4次方是 The fourth power of 2 is direction
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 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...
  • 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. Considering the precision and cost of sea - route in our country, gps oem board was selected positioning for system in stand - alone model ( not dgps ). there is abundant time to processing and optimizing data for gps receiver because the reactive speed of pharos is on hour level contrast to strict real time

    根據航道定位精度要求與成本承受能力，系統選取低成本的gpsoem板接收機進行單機定位，由於航標燈監控有一定實時性但又非嚴格意義上的實時性，其反應速度可到小時級，這為gps接收機定位提供了寬裕的時間作為數據處理與優化。
  3. As the application of rake receivers with multitaps is widely used in cellularcdma systems for exploiting path diversity, the closed - loop power control schemesshould make use of the multitap rake receivers for tracking the power variation dueto path loss, slow fading, and fast fading

    同時，本文給出的自適應變步長閉環功率控制演算法利用rake接收機跟蹤通道的變化，與傳統的固定步長閉環功率控制相比獲得了較小的ebi0標準差。
  4. At fixed time intervals, the gts data are decoded by the hko main computer and quality control checks are applied. objective analyses are then carried out for data at various standard pressure levels to produce grid point values. charts showing flight level winds, temperatures and other information are made available at the airport meteorological office ( amo ) for the provision of flight documentation and airway winds

    天文臺的主電腦定時對接收到的資料進行譯碼及質量控制檢查，跟著對各個標準氣壓層面的資料進行客觀分析，計出各網格點的數值，從而製作各巡航高度的風、溫度及其他資料的天氣圖，讓機場氣象所用來編制飛行氣象文件和航道風。
  5. At fixed time intervals, the gts data are decoded by the hko main computer and quality control checks are applied. objective analyses are then carried out for data at various standard pressure levels to produce grid point values. charts showing flight level winds, temperatures and other information are made available at the airport meteorological office for the provision of flight documentation and airway winds

    天文臺的主電腦定時對接收到的資料進行譯碼及質量控制檢查，跟著對各個標準氣壓層面的資料進行客觀分析，計出各網格點的數值，從而製作各巡航高度的風溫度及其他資料的天氣圖，讓機場氣象所用來編制飛行氣象文件和航道風。
  6. Second part - the main contribution and research results of this paper are focused on as follows : ( 1 ) how to use the measurements of a dual frequency gps receiver to determine the ionospheric delay correction model for single frequency gps of a local range ; ( 2 ) how to separate the instrumental biases with the ionospheric delays in gps observation ; ( 3 ) how to establish a large range grid ionosphere model and use the gps data of chinese crust movement observation network to investigate the change law of ionospheric tec of china area ; ( 4 ) how to improve the effectiveness of correcting ionospheric delays for waas ' s users under adverse conditions. ( 5 ) how to establish the basic theory and the corresponding framework of monitoring the stochastic ionospheric disturbance using gps ( 6 ) how to improve the modelling ability of ionospheric delay according to its diurnal, seasonal, annual variations based on gps ; ( 7 ) how to meet the demand of correcting the ionospheric delay of high - precision orbit determination for low - earth satellite using a single frequency gps receiver 1 extracting ( local ) ionospheric information from gps data with high - precision the factors are systematically described and analyzed which limit the precision of using gps data to extract ionospheric delays

    二、具體研究工作的系統報告，主要集中在以下幾方面：研究如何利用單臺雙頻gps接收機的觀測信息確定電離層延遲改正模型，為小范圍的單頻用戶服務；研究如何實時分離gps觀測中的儀器偏差與電離層延遲；研究如何建立較大區域的電離層格網模型，進而初步設想利用中國地殼運動觀測網路深入研究我國領域的電離層的電子濃度變化規律；研究單頻用戶在不利條件下，如何更好地利用電離層延遲改正信息；研究利用gps監測隨機電離層擾動的基本理論和框架方案；研究如何綜合顧及電離層的周日、季節和年變化，進一步提高利用gps模擬電離層延遲的能力；研究如何實現星載單頻gps低軌衛星的精密測軌中的電離層延遲改正要求。
  7. 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。
  8. For the design of rake receiver, a receiving with delay and unfixed channel estimation coefficients, integrating channel estimation, capture of spread sequences and, despread, are described. its features are real - time, quick capture and easy implement

    對于rake接收機，描述了一種延遲和通道估計系數均不固定的接收方式，集通道估計、擴頻捕獲、解擴功能於一身，具有實時性強、捕獲速度快、易於實現的特點。
  9. ( 3 ) the features of the low frequency time - code receiver are digital, high performance and high precision. on the basis of the testing flat of low frequency time - code, we designed a low frequency time - code receiver based on software radio

    在前面已經實現的低頻時碼信號測試平臺的基礎上，對設計一種基於軟體無線電模式的低頻時碼接收終端作了初步的探討，為今後的全數字化接收機的實現打下一定的基礎。
  10. Send the real - time position, velocity of the moving object. received by gps oem caxd, associaied with the status information of the vehicle devices, to the monitoring centef, by way of the mobile conununication network. the monitoring system, based on some gis software, displays the tracks of the mobile objects on the eiectronic map, and users could supervise and query their iaterested parameters such as the location or velocity of the vehicle, the general information of vehicles, as so on, so that provide bases for vehicle management, improve the efficiency, or assure vehicles against accidents

    車輛監控系統是its的重要組成部分之一，它將全球衛星定位技術、地理信息技術（ gis ）和現代通信技術結合在一起，通過將裝有gps接收機的移動目標的動態位置、速度、狀態等信息，實時地通過無線通訊鏈路傳送至監控中心，在具有強大的地理信息查詢功能的電子地圖上進行移動目標運動軌跡的顯示，並可以對目標的準確位置、速度、運動方向、車輛狀態等用戶感興趣的參數進行監控和查詢，為調度管理提供可視化依據，提高車輛的運營效率，確保車輛安全。
  11. Spread spectrum code emitted by navigation station has correlative operation with the signal produced by receiver, through measuring the place of maximal correlative function, we can measure the spreading time of the navigation station ’ s signal, so we can measure the distance between navigation station and receiver

    區域導航利用導航臺發射的擴頻碼與接收機產生的本地信號進行相關運算，通過測量相關函數最大值的位置，來測定導航臺信號傳播時間，從而測定導航臺到接收機的距離。
  12. On the base of the traditional bpm - i, ii time receiver, and by the deeply studied of the theory of software radio ( swr ) and time receiver, we present the short - wave time receiver design on the concept of software radio

    本文建立在傳統的短波定時接收儀的基礎上，通過對授時接收機和軟體無線電理論的深入研究，提出了一種新的軟體無線電概念下的短波定時接收機的實現方案。
  13. If users open a data file that include id, latitude, longitude and attribute information, users can use the softw are to view, find, add, modify and delete those data stored in the data file. using these data stored in the opened data file, a grid graph expressing the distributing status of attribute information in a farm will be created on the computer ' s screen. if farming machinery is equipped with a gps receiver, operators can use spatial information obtained by gps receiver to make sure the location of the farming machinery on the grid graph, then get the attribute information on the location

    在該應用軟體中實現gps接收機與計算機的串列通信，從融合信息中檢索出經緯度坐標和屬性信息形成為采樣數據，存儲到數據文件中；可以瀏覽、查詢、添加、修改和刪除access數據表中的數據記錄；利用存儲在數據文件中的采樣數據生成屬性信息分布圖，實現用柵格圖形來表達基礎農田信息；對于配備了gps接收機的農業機具，可以根據gps定位信息從屬性信息分布圖中實時地提取當前農業機具所在位置的土壤的屬性信息。
  14. The reasons of the signal distortion are analyzed, and the relations of receiving bandwidth with distortion degree is discussed, for the more a steady point in the amplitude modulation signal is given by the method of the statistics. looking at the point as the timing reference point of the receiver, the stability of the receiver is less than 100us

    分析了接收信號失真和受干擾的原因所在，論述了接收帶寬和失真程度的關系，並在此基礎上，利用統計的方法在調幅信號的下降沿上找到了一個較為穩定的特徵點，將其作為接收機的定時參考點，定時不確定度可以達到數十微秒量級。
  15. ( 2 ) to improve the timing precision of the receiver, it is necessary to research the timing reference point of the second signal

    （ 2 ）為了提高接收機的定時精度，對反映低頻信號秒到來時刻的確定方法作了較為深入的研究。
  16. In computer graphics and videotex, a display mode in which the characters are blanked out at regular intervals under the control of a timing device in the receiver

    計算機制圖技術和可視圖文技術中的一種顯示方式，在此方式中，在接收機的定時裝置控制下，字元以有規律的間隔消失。
  17. All - digital processing technology is indispensable for modern communication. the problem of timing adjustment in all - digital receivers is elucidated. the interpolation performance of bpsk all - digital receivers is investigated through simulation

    摘要現代通信越來越依靠全數字處理技術，本文介紹了全數字接收機中的定時調整問題，並對bpsk全數字接收機的內插性能進行了模擬。
  18. Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors. usually the target - receiver range can be got by the propagating time of a signal pulse. if this propagating time is larger than the pulse repetition period, it will mean that more than one signal pulse are on propagation

    主動水聲跟蹤定位系統通過測量脈沖信號的傳播時延可以測得目標相對接收機的距離，當此傳播時延大於系統同步周期時，時延測量就會呈現不確定性，可能相差若干個重復周期，導致定位解多值，稱之距離模糊現象。
  19. The problem of signal processing for direct - sequence code - division - multiple - access ( ds - cdma ) signal over multipath frequency - selective mobile channels is considered. a new blind receiver is proposed. without the knowledge of the multiple - access interference users spreading code and the channel characteristics, the receiver achieves blind detection with prior knowledge of only the desired users spreading code and approximate timing. by using reduced rank adaptive decorrelating filter and adaptive multipath combiner which is based on decision - directed algorithm, the receiver gets the ability to combat both fading and the near - far effect at low cost. simulation results demonstrate that the proposed receiver offers high performance

    本文研究多徑頻率選擇性衰落通道下直接序列擴頻碼分多址（ ds - cdma ）信號的處理問題，提出了一種新型的盲接收機.該接收機不需預知多址干擾用戶的擴頻碼，不需預知通道參數，只需已知期望用戶的擴頻碼和粗略的定時，就可以完成用戶的盲檢測.同時，該接收機通過降維自適應去相關濾波和基於判決指導的自適應多徑合併，來獲得低成本和良好的抗衰落、抗遠近效應性能.模擬結果驗證了本文提出的接收機的優良性能
  20. Unlike ordinary radio telescope receivers, which point and listen to a single point in the sky at any given time, arecibo ' s new multi - beam receiver can point to seven different points simultaneously

    與普通的射電望遠鏡接收器在一個給定的時間只能指向並監聽天空中的一個點不同，阿雷西博的新多波束接收機能同時指向7個不同的方向。
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