vcos 中文意思是什麼
vcos
解釋
可視協同辦公系統-
Recently, much attention has been paid to the thin films of tunable dielectric materials for their applications in microwave agile devices, such as phase shifters, tunable filters, and voltage - controlled oscillators ( vcos )
隨著導彈等快速進攻性武器的發展，對雷達的功能提出了許多新的要求。採用機械掃描方式的天線已很難適應新的作戰要求。 -
The main purpose of this thesis is to improve the 3mm vcos frequency stability that work in harmonic to obtain the more strict demands of new electronic equipments
本文主要任務是改善原有3mm壓控諧波振蕩器的頻率溫度穩定度，使其滿足系統對3mm振蕩源越來越高的要求。 -
The goal of this subject is to sum up and exploit our technique how to produce low phase noise wideband vcos, through investigating and studying the basic theory and recent research fruits, combining national condition, and produce our low phase noise wideband vcos. using high q components, such as : coaxial resonator, dielectric resonator, makes bandwidth of vco become narrower, so that recently common wideband vcos generally make inductor and capacitor ( lc ) as resonators, combining varactors with wide range tunable capacitance, and achieve the wideband
本課題旨在通過對低相噪寬帶vco的基本原理、國內外在這方面的進展，結合國內的實際情況進行研究，總結和開發出自己的方法，形成自己的理論。並把它運用於實踐，以製造出低相噪的寬帶vco 。由於加入高q元件，如：同軸諧振器、介質諧振器等，會導致振蕩器帶寬比較窄，目前的寬帶vco一般採用電感電容（ lc ）作為諧振元件，輔之以大變容範圍的變容二極體，達到寬帶的目的。 -
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。 -
Sum up, the subject have obtained big progress. as the subject carries out deeper and deeper, we believe the features of vcos will be better
總的說來，本課題到目前已經取得了相當好的效果，隨著課題的進一步開展，相信能取得更好的效果。 -
At present, i have carried out and finished the research and producing of low phase noise vcos, but the research of widebanth have n ' t gone deep ( now can achieve normal level )
本課題到目前階段，主要進行了低相噪lcvco的研究及製作，寬帶的研究還未深入進行（目前能達到一般水平） 。 -
With the rapid advancement of process and technology, especially the realization of on - chip passive elements such as inductors and varactors, the on - chip implementation of voltage - controlled oscillators ( vcos ) which are necessary in wireless transceivers has become easy
在工藝技術的飛速進步下，尤其是電感和變容管等無源器件片上實現問題的解決，壓控振蕩器已經可以實現單片集成，這對降低收發機的成本十分關鍵。
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