phase jitter 中文意思是什麼
phase jitter
解釋
相位抖動-
Based on the analysis of transistor amplifier noise model, we select devices with low noise in reason. and the method how to reduce phase noise and phase jitter is also discussed
依據晶體管放大器的噪聲模型分析合理選擇了低噪聲的元器件，對降低相位噪聲和相位抖動的方法作了一些探討。 -
By theory and practice simulation, the several types of constant envelope modulation techniques are analyzed and compared, including theirs modulation principle, phase path, the modulated wave envelope, power spectrums, error bit rate and the influence of its power spectrums of the band - limited and non - linear, etc. especially we have researched the ijf - oqpsk modulation technique, and the performance of its inter - symbol interference and time jitter free, and its strongly resisting of spectral spreading
結合理論和實驗模擬結果，分析討論了衛星通信中的各種恆包絡調制技術，對它們的調制原理，相位路徑，已調波包絡，功率譜密度，誤碼性能，以及帶限非線性通道對其功率譜的影響等方面都作了研究和比較。特別研究了ijf ? oqpsk在消除碼間干擾和定時抖動方面的性能及其優良的旁瓣特性和抑制頻譜擴展特性。 -
The paper compares some algorithms on rs decoding, makes improvements based on the me algorithm, removes the modifying step in decoding truncate rs code, corrects unsuitable statements in the related papers, and parameterizes the rs decoding module, reducing its area by 20 %. the paper overcomes the signal integration problem in multi - clock design, greatly lowers the phase jitter without area increase, introduces pll to adjust rate for the first time, and parameterizes the module
本文比較了實現rs解碼的幾種演算法，並在me演算法基礎上進行改進，創造性的去掉了縮短碼解碼中的校正環節，糾正了有關論文中的不當論述，並將rs解碼模塊進行了參數化設計，同時也將rs解碼的規模縮小了20 ；克服了多時鐘設計中的信號完整性難題，在沒有增加模塊面積的條件下，大幅降低數據的相位摘要抖動，首次引入鎖相環來調整速率。 -
It is necessary in digital communication system that carrier recovery can compensate frequency offset and phase jitter brought by transmission and modulation. this paper is mainly focused on carrier recovery technique. we introduce the channel model at cable headed and receiving site. firstly, we introduce the principle of carrier recovery and give some algorithms of them, which are directed - decision, reduced constellation and frequency sweeping
本論文緊緊圍繞著數字通信系統中的載波恢復技術，在介紹了有線通信系統所用的調制解調通道模型后，首先闡述了載波恢復技術的思想和基本原理，在此基礎上給出了三種載波恢復演算法，即判決導向演算法、簡化星座判決演算法和掃頻演算法，並且給出了其各自的模擬圖：然後深入研究了一種適合高階qam並且能糾正較大頻偏的載波恢復技術：極性判決演算法。 -
The adc aperture jitter must be minimal, and the sampling clock generated from a low phase - noise quartz crystal oscillator
Adc的孔徑抖動必需盡可能的小，而且要使用低相位噪聲的石英晶體振蕩器作為采樣時鐘發生器。 -
It admits of no delay to develop high stability crystal oscillator and enhance its phase noise index to reduce the effect of jitter to the performance of the whole system
研製高穩定晶體振蕩器，提高相位噪聲指標、減少抖動對整體性能的影響，已經成為刻不容緩的任務。 -
As a part of whole atm network, apon should be in concert with the traffic control policies of atm. for this, the mac protocol should minimize the cell jitter over passed stream with effort in the access phase
作為整個atm網路的一部分， apon必須能與atm網路的流量監控措施保持協調一致，其要求是盡量降低信元流的時延抖動。 -
The clock used should be free from significant phase or frequency jitter
應用的時鐘應沒有重大的周期或頻率的跳動。 -
On the above, to overcome the pre - maturity and low speed of search in the late phase of multicast routing algorithm based on genetic algorithm, the author gives the multi - population parallel annealing genetic multicast routing algorithm to solve the bandwidth, delay, delay jitter and packet loss constrained least - cost multicast routing problem, which combines the
在此基礎上，將多種群并行技術和退火技術相結合，以克服現有基於遺傳演算法的組播路由演算法過早收斂和後期搜索速度較慢的缺陷，且使用樹狀編碼方法，提出求解帶寬、時延、時延抖動和分組丟失率約束的代價最小組播樹的多種群并行退火遺傳組播路由演算法。 -
At the same time, the technology of frequency synthesis is developing rapidly and it requires much better performance on its reference source - crystal oscillator. so, it is significant for practical applications and development of theory to make researches on crystal oscillator ' s phase noise and phase jitter, and improve its performance fundamentally
同時隨著頻率合成技術的迅猛發展，對晶體振蕩器參考源的要求也越來越高，研究頻率源信號的相位抖動和相位噪聲，從根本上改善頻率源的性能，對于這一學科的理論發展和實際應用都具有重要的意義。 -
The basic principle of feedback crystal oscillator is analyzed. the basic concept of frequency stability is also introduced, following by the usual expression of phase noise in frequency domain and phase jitter in time domain. further, we describe the origin of crystal oscillator ' s phase noise and phase jitter, also list a variety of its contributors
然後從理論上分析了反饋型晶體振蕩器的基本工作原理，並闡述頻率穩定度的概念，給出了在頻域中相位噪聲和時域中相位抖動的表示方法，形成原因以及影響相位抖動的諸多因素。
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