spur noise 中文意思是什麼
spur noise
解釋
寄生噪聲-
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。 -
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，通過建立鎖相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? ?鎖相混頻環+倍頻器方案。 -
The locomotive, its great funnel emitting a weird light, with its sharp bell, and its cow - catcher extended like a spur, mingled its shrieks and bellowings with the noise of torrents and cascades, and twined its smoke among the branches of the gigantic pines
那火車頭看來黑里透光，象是一具靈柩，頂上一盞照明燈射出雪亮刺眼的光芒，此外還附裝著一個銀色的警鐘和一具象豬嘴似的伸在車頭前的「驅牛」排障器。 -
On the basis of relationship between meshing rigidity and noise and taking the modification, vibration deduction and noise dropping as the aims, the tooth profile modification was carried out on spur bevel gar by the use of revolving involute curve
摘要根據嚙合剛度和噪聲之間的關系，以修形減振降噪為目的，用旋轉漸開線曲線對直齒錐齒輪進行齒廓修形。 -
Adopting the precision cold forging to carrying out the tooth profile modification of spur bevel gear evidently lowered the cost, thus provided a kind of new researching method for the modification, vibration reduction, noise dropping and design of the gear transmission system
直齒錐齒輪採用冷精鍛進行齒廓修形，顯著地降低了成本，這為齒輪傳動系統的修形、減振、降噪和設計提供了一種新的研究方法。 -
Finally, the production, which is designed and debugged all by myself, c band fine resolution low phase noise frequency synthesizer was introduced by module, including respective schedule, frequency distribution and phase noise experiment results. then whole circuit phase noise result, picture of spectrum with spur were presented, by which above theory was proved, analysis of the result was given, and the existing problem as well as methods to resolve it were motioned
論文最後對自己設計調試的樣機c波段小步進低相噪頻率合成器進行了分模塊介紹，包括各部分的原理框圖、頻率分配和相噪測試結果，然後給出了整個樣機的相噪、雜散頻譜測試結果，對上面提到的理論進行驗證，並對結果進行了討論分析，提出了樣機現存的一些問題和幾點解決措施。 -
Then presented the basic structure, phase model, frequency response and performance analysis for noise and spur, of phase locked loop ( pll )
然後介紹了鎖相環（ pll ）的基本結構、相位模型、頻率響應、噪聲及雜散性能。 -
Some hybrid frequency synthesis methods for dds + pll which used usually are presented in the following section, and its analysis for phase noise, spur, and frequency jump speed was also introduced
接著對dds + pll頻率合成器常用組合方案進行了介紹，並對dds + pll系統的相位噪聲、雜散、頻率轉換速度進行了分析。
分享友人