oscillator frequency noise 中文意思是什麼

oscillator frequency noise 解釋
振蕩器頻率噪聲
  • oscillator : n. 1. 搖擺者。2. 【電學】振蕩器，振動器，振動子，振動部。
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. In the sub block circuit design, the contents that the author had introduced include : the principle of band gap voltage reference and the design technique in low power supply ; the analysis of spike pulse noise rejection, frequency divider and dead time in oscillator and control circuit ; the selection of the width and length ratio of four switches and 2x / 1x mode change point in driver and mode selection circuits

    在子電路設計中，作者比較深入分析的內容有:基準電路的原理及低電源電壓下基準電路的設計;振蕩器和控制電路中尖峰脈沖噪聲抑制、兩分頻電路及死區時間設定;驅動及模式選擇電路中開關管的寬長比的選擇及模式轉換點的設計。
  2. Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator

    本文研究了以低損耗、高q值聲表面波（其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ，和聲表面橫波等）諧振器的工作原理、設計參數、製作工藝及其實驗結果，並且研究了以1ghzstw諧振器為頻控元件的高頻率、低相位噪聲聲表面波振蕩器，以及低相位噪聲聲表面波振蕩器的測試方法和最終的測試結果。
  3. The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels

    本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統，可以將c波段的微波信號上變頻到ka波段的毫米波信號。系統的本振輸入基頻由一相位噪聲非常好的低頻率晶振提供，經過512次的倍頻放大至ka波段。本系統作為實驗室中引信的發射源，由於目標反射信號具有時變的多維性，反射信號變得極為復雜，在信號處理時，不僅信號幅值、頻率有決定意義而且相位關系也很有決定意義。
  4. In the course of the low phase noise research, by integrating many aspects, using recent accomplishments, i come up with my method and theory, that by comprehending and controlling subcircuit of oscillator ' s resonator, can let us know exactly their working states. using this method and theory, combining the vco circuit of this subject, i deduce and demonstrate particularly the reason of low frequency oscillation, and come up with the measure of avoiding it. this makes design and producing vcos can avoid the disturbing of low frequency oscillation, and improve the features of vcos. at later process of debugging vco, using this method makes the vco achieves very good working state

    在低相噪研究中，綜合了各方面的情況，運用了當今低相噪vco的研究成果，並提出了自己的對諧振電路結構進行總體把握，從而準確得知電路的工作狀態的思想和理論。運用此方法，在論文中結合本vco電路拓撲結構，詳細推導和論證了低頻振蕩產生的原因，並提出了避免發生低頻振蕩的措施。使低相噪vco的設計及調試能免於低頻振蕩的干擾，從而有利於提高vco的各項指標。
  5. The fourth, mainly talk about the phase noise in the pll, and discuss the specific affect on out put phase noise caused by different components in frequency synthesizer, such as mixer, amplifier, multipler, divider, oscillator, phase detector etc. the last part is about how to choice the natural frequency of pll in order to get the better performance in phase noise

    第二章從鎖相環的基本原理出發，介紹了鎖相環的幾個基本部件:鑒相器?環路濾波器和壓控振蕩器，對線性化鎖相環進行了詳細的分析，對數字鎖相環做了詳細的介紹，分析了鎖相環的相位噪聲模型，討論了頻綜中的混頻器
  6. 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。
  7. 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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