receiver timing 中文意思是什麼
receiver timing
解釋
接收機的定時-
Traditional multiuser detector make good use of all signals which resuilt in multiple access interference so that it provides optimum mai resistance. ( 1 ) nevertheless, it assumes that the receiver can acquire the signature waveform and timing of desired user and the interfering users ; ( 2 ) it has no ability to suppress intercell multiple access interference ; ( 3 ) it cannot be applied in downlink channels. adaptive multiuser detector eliminates the need to know the signature waveforms and the timing of the interferes and has to need training data sequences for every active user
傳統多用戶檢測在單用戶檢測技術基礎上，充分利用造成多址干擾的所有用戶的信息進行聯合檢測，從而具有良好的抗多址干擾能力，但存在一些缺陷： （ 1 ）不僅要求知道期望用戶的地址pn碼及其定時信息，還要求其他干擾用戶的地址pn碼及其定時信息； （ 2 ）不能消除其他相鄰小區的多址干擾對本小區的影響； （ 3 ）不能直接應用在cdma移動通信系統中的下行鏈路。 -
A type of receiver circuit and timing circuit which can be applied in high - speed laser range - finder is discussed in this paper
本論文詳細討論了一種可實現高速激光測距的接收電路和計時電路。 -
With dispersion, xpm can induce intensity fluctuations and timing jitter of the pulses in the receiver. it can also cause the spectral spreading of the channel so that crosstalk is introduced. all these effects put a tight limit on the capacity of the systems
它與色散共同作用，會導致接收端光脈沖的變形（強度起伏） 、光脈沖的時間抖動以及通道的頻譜擴展，這些後果都會限制系統的性能。 -
For example, carrier frequency offsets, which are caused by the inherent instabilities of the transmitter and receiver carrier frequency oscillators, can lead to severe system degradation due to inter - carrier interference ( ici ). symbol timing synchronization must also be achieved in order to avoid inter - symbol interference ( isi )
其載波頻率誤差會引入子通道之間的干擾（ ici ） ，而幀同步的誤差會引入符號間干擾（ isi ） ，同時還會對通道估計帶來嚴重的影響。 -
Gps receiver module get signals from satellites ahead. the signals contain timing and positioning information from the satellites, which can determine the time and the position of the receiver accurately
全球定位系統接收器負責接收來自衛星的訊號。訊號包含該衛星的時間和位置資料；利用不同衛星的資料，可以推算該觀測站的準確位置和時間，並將準確的報時訊號傳送到計時器。 -
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。 -
( 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。 -
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。 -
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。 -
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 -
This paper introduces some practicable ways to realize the design of background signal simulator console software, database exploitation and the data processing for the gps receiver ( gn - 79 ). to meet the needs of these superiorities such as simple maneuverability, modularization and high secrete security, we considerably think of those requirements in the aspects of the signal - producing, hardware - setting, timing and orientation, user setting and so on, during the period when we design the software, make the database accessing down to the bottom layer, and obligate full space for its improvements of software modification and function expansion
由於工程的操控部分即軟體實現部分需要體現簡便、易控、模塊化以及保密性好等優勢，因此，在設計實現操控界面的同時，充分考慮了信號產生、硬體設置、定時定位以及用戶設置等各方面的要求，實現了數據庫訪問技術到底層的管理，為將來的軟體修改、功能擴容留下了充分的空間。
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