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change loop中文

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用"change loop"造句"change loop" in a sentence"change loop"怎麼讀

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  • Back in loop change loop
    后內單腳結環形
  • Then according to the emphasis of the design , went deeply into the theory of pll frequency synthesizers widely used , described pll ’ s working principle , structure and several types in detail , and made research and analysis of pll frequency synthesizers ’ phase noise , including the effect of the active loop filter on the phase noise , and give some methods to make improvement as well , such as changing loop filter form , reducing divide number , and increase phase detector frequency , etc . then paper introduced the principle character and phase noise analysis of direct digital frequency synthesizer ( dds ) and injection phase lock circuit , which are also important circuits in the design
    論文首先對幾十年頻率合成器的發展進行概述,而后針對本次設計的重點,對應用較為廣泛的鎖相頻率合成理論進行了深入的探討,詳細介紹了鎖相環的工作原理、組成結構和鎖相類型,并對鎖相頻率合成器的相噪特性進行了研究分析,包括有源環路濾波器對于相噪的影響,提出了改善相位噪聲的幾點措施:改善環路形式、降低分頻數、增大鑒相頻率等。接著介紹了直接數字頻率合成器( dds )和注入鎖相電路的原理特點以及相噪分析,它們也是本次設計的重要電路。
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