鎖相捕獲 的英文怎麼說

中文拼音 [suǒxiāngbǔhuò]
鎖相捕獲 英文
phase-lock acquisition
  • 鎖 : Ⅰ名詞1 （安在開合處使人不能隨便打開的器具） lock 2 （姓氏） a surname Ⅱ動詞1 （上鎖） lock up 2 ...
  • 相 : 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...
  • 捕 : 捕名詞（姓氏） a surname
  • 獲 : Ⅰ動詞1. （捉住; 擒住） capture; catch 2. （得到;取得） obtain; win; reap 3. （收割） reap; harvest Ⅱ名詞（姓氏） a surname
  • 捕獲 : 1. （捉到; 逮住） catch; capture; succeed in catching; acquire; arrest; seize 2. （俘獲） trapping
  1. Contrapose to the instability of the third - order charge - pump pll system, the loop optimization method is employed in system level design to decide the bandwidth and phase margin, therefore the loop bandwidth locates at the maximum phase margin to guarantee the stability of the system. according to tsmc 0. 35 m sige bicmos model, the sub - circuits in the designed pll and the whole system are simulated and verified by the cadence spectre

    5 .根據tsmc0 . 35 msigebicmos工藝模型，利用cadencespectre模擬軟體對所設計的電荷泵鎖相環路中各個模塊及整個系統進行了模擬模擬，模擬結果顯示，在1 . 5v電源電壓下，頻率為200mhz的參考輸入信號，輸出中心頻率為800mhz ，分頻電路採用4分頻，環路帶寬為10mhz ，捕獲時間大約為0 . 92 s ，功耗大約為15mw ，達到了設計指標。
  2. This paper has launched exhaustive analysis and study to every module of pll and its key part ( vco ) is also improved. the history of phase - locked technology and the actuality of research on it are introduced. and then beginning with the fundamental principles of a phase - locked system, we build the mathematical model based on the architecture of the traditional analog pll, and afterwards investigate some of its characters such as tracking, acquisition, noising, and stability

    本文在對鎖相技術的發展歷史和研究現狀調查研究的基礎上，從鎖相系統的工作原理入手，分析了鎖相環的數學模型，並以此為出發點對其跟蹤性能、捕獲性能、穩定性及噪聲性能等性能進行了較為深入的研究，對環路的各項參數指標進行了詳細的推導，得出了鎖相環數理分析的普遍結論。
  3. Then we uses the scheme that has the variable gain based on the kalman filtering model realize two steps phase - locks ring circuit track technology, this kind has the advantage that when changed the gain the digital phase - lock link to be allowed simultaneously to realize the fast capture and the reliable track, the simulation analyzes its capture performance

    模擬結果表明，自編碼直擴通信系統的編碼捕獲性能具有可行性。採用基於卡爾曼濾波模型實現具有可變增益的二階鎖相環路的跟蹤技術，這種具有時變增益的數字鎖相環可以同時實現快速捕獲和可靠跟蹤，其捕獲性能要比傳統數字鎖相環改善很多。
  4. A fast acquisition pll with wide tuning range

    一種快捕獲寬調節范圍的鎖相環
  5. There are two uncertain factor about it : the phase of the pn code and the doppler - shift. after capturing the received signal successfully, the traditional ds receiver always uses a delay locked loop ( dll ) to synchronize the pn code and then uses a costas loop to realize the carrier synchronization. this complex closed - loop structure not only take long time to realize the synchronization, but also has the defect of “ hang up ”

    傳統的擴頻接收機通常在捕獲偽碼信號后利用遲早門鑒相的延時鎖定環來實現偽碼的精同步，解擴后利用科斯塔斯環實現載波同步，這種閉環結構不僅同步時間長、結構復雜，而且鎖相環還存在所謂的「 hang - up 」現象。
  6. Phase - lock acquisition

    鎖相捕獲
  7. 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相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相工作原理及電路、鎖相環路的線性跟蹤特性和相位噪聲特性；重點對取樣鎖相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相移影響，對環路濾波器進行了分析和設計。
  8. It is necessary that the receiver tracks the acquired signals steadily and credibly to ensure the successful demodulation process. in this thesis, an improved tracking loop design method is presented which adopts self - adaptation parameters and varied bandwidth tracking technique to adapt to the input signals, and improves the acquisition and tracking performance

    接收機穩定可靠地跟蹤被捕獲信號保證成功解調是必要的，本文介紹一種改善的鎖相環設計方法，這種方法採用自適應參數和變帶寬跟蹤技術來調整輸入信號改善捕獲和跟蹤性能。
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