相位噪聲 的英文怎麼說

中文拼音 [xiāngwèizàoshēng]
相位噪聲 英文
phase noise
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : 動詞1. (蟲或鳥叫) chirp 2. (大聲叫嚷) make noise; make an uproar; clamour
  • 相位 : phase position; phase
  1. With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end

    隨后在建立的寬帶射頻前端通用模擬平臺上,加入基帶數字調制信號,對多種數字調制格式的信號在該通用平臺上的傳輸作了研究,模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收,研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響,實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。
  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值表面波(其中包括表面瑞利波- - rayleighsurfaceacousticwave ,和表面橫波等)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、低相位噪聲表面波振蕩器,以及低相位噪聲表面波振蕩器的測試方法和最終的測試結果。
  3. With linear time - invariant modeling of phase noise and definition of “ effective resistor ”, we analyze the critical parameters of the circuit and calculate the value of phase noise at the 1 / f ~ 2 region

    引入「有效電阻」的概念對電路的各項關鍵參數在線性時不變模型下進行理論分析和推導,得到相位噪聲在1f2區域的理論值。
  4. 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關系也很有決定意義。
  5. 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模型分析合理選擇了低的元器件,對降低相位噪聲抖動的方法作了一些探討。
  6. Local - oscillation phase noise

    本振相位噪聲
  7. Using spectrum analyzer for the measurement of phrase noise

    頻譜儀在相位噪聲測量中應用
  8. In various high performance, wide dynamic range frequency convertings, phase noise is a main limiting factor

    在各種高性能、寬動態范圍的頻率變換中,相位噪聲是一個主要的限制因素。
  9. It introduces the phase noise measurement method of hf radar ' s transmitting signal, especially the measurement method of low phase noise which is close - in to carrier frequency

    指出了在高頻雷達發射信號相位噪聲的測量,特別是近載頻低相位噪聲的測量。
  10. At first, the pll part and the dds part have been explained rigidly in mathematics. then how the phrase noise and the spur influences the circuit has been discussed in this paper. the above analysis is the basic of designing high performance frequency synthesizers

    本文首先對pll部分和dds的理論做了嚴格的數學解釋,並對其雜散頻譜和相位噪聲進行了討論,給出了其雜散分佈規律及降低雜散的設計方法。
  11. Dr is made of microwave ceramic with high dielectric constant and very low loss. using dr, the phase noise of an oscillator could be made to be extremely low

    介質諧振器( dr )由高介電常數、低損耗的微波陶瓷材料製作而成,它能極其容易地實現微波頻率源的低相位噪聲
  12. With the phase - noise model of the phase loked loop ( pll ) and the analysis of spur characteristic of fractional - n frequency synthesizer using - ? modulating technology, the scheme of pll with mixer + quadrupler is confirmed as a result

    文中,通過建立鎖環路的相位噪聲模型,並分析了使用- ?調制技術的分數頻率綜合器的雜散性能,以此二者為理論依據完成了毫米波頻率源合成器的基本方案? ?鎖混頻環+倍頻器方案。
  13. Verification regulation of 500mhz phase noise measurement set phase detector method

    500mhz鑒相位噪聲測量裝置檢定規程
  14. It has the advantage of high frequency resolution and low phase noise when compared with traditional integer - n phase locked loop ( npll ) frequency synthesis

    分數分頻( fnpll )頻率合成器則是近年來出現的一種新技術,它與傳統的整數分頻頻率合成器比具有頻率解析度高、相位噪聲低等優點。
  15. The synthesizer with the low phase noise, highly pure spectrum and high - speed frequency agility has became the tendency to the frequency synthesis technology

    相位噪聲、高純頻譜和高速捷變的頻率合成器成為頻率合成技術發展的主要趨勢。
  16. With consideration of parameters trade - offs involved in the circuits, the vco ’ s topology is designed

    考慮壓控振蕩器設計指標的互約束條件,盡可能減小相位噪聲的來源,設計電路的拓撲結構。
  17. Flicker noise is approximately simulated by power law model of phase noise spectral density

    根據相位噪聲功率譜的冪律模型,近似地模擬了相位噪聲
  18. Theoretical analysis and simulation results show that it is mainly flicker noise, not phase or frequency white noise, that affects bistatic sar imaging performance

    理論分析和模擬試驗證實了影響雙基地sar成像的相位噪聲主要是閃爍頻率,而不是白調或白調頻。
  19. The basic operation principle of phase - locked frequency synthesizer and the type of circuits are expatiated systematicly in this paper. the principle of operation on sampling phase detector and some characteristics including the linear tracking and phase noise in phase loop circuits are analyzed deeply. the research is emphased on the theory and design method of circuits in the sampling phase - locked frequency synthesizer. then, the expansion capturing circuit is analyzed and designed for better performance of capturing loop circuits. at last, the loop filter is also analyzed and contrived taking account of effection of additional phase shift by the sampling - holder. the general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product

    本文系統的闡述了鎖頻率合成器的基本工作原理及電路類型;較深入地分析了取樣鑒工作原理及電路、鎖環路的線性跟蹤特性和相位噪聲特性;重點對取樣鎖頻率合成器電路理論和設計方法進行了研究;為了改善環路的捕獲性能,對擴捕電路進行了分析和設計,並用wewb32軟體對電路進行了模擬;考慮到取樣保持器的附加移影響,對環路濾波器進行了分析和設計。
  20. By computer simulation, some pictures showing the direct effect of phase noise are given

    同時通過模擬給出了因相位噪聲影響而使系統性能下降的圖示表示。
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