sampling technique and theory 中文意思是什麼
sampling technique and theory
解釋
選樣的技術和理論-
Because massive harmonic interference in the electrical network, it causes signal - sampling to include the very big harmonic in the measurement system, for eliminating measurement result influence by harmonic, the paper has an in - depth study of fourier transformation harmonics analysis measurement principle, analysis the forming reasons of frequency spectrum leakage and railing effect during measurement, achieves phase locked loop and frequency multiplier technique to realize integer - period synchronous sampling and eliminate impact of frequency spectrum leakage and railing effect in the result of measurement, and investigates in depth theory on phase locked loop and frequency multiplier technique, gives the method of realizing phase locked loop and frequency multiplier technique
由於電網中存在大量的諧波干擾，導致測量系統中取樣信號也含有很大的諧波，為了消除諧波對測量結果的影響，論文深入研究了傅立葉變換諧波分析法的測量原理，分析了測量中頻譜泄漏和柵欄效應形成的原因，提出了採用鎖相環倍頻技術實現信號的整周期同步采樣，消除頻譜泄漏和柵欄效應對測量結果的影響，並對鎖相環倍頻技術的理論進行了深入研究，給出鎖相環倍頻技術的實現方法。 -
In this paper, a ku band frequency source based on sampling phase lock loop technique is introduced. the vco of the loop is designed using dielectric resonator. the theory and design method is discussed and emphasized on
本文介紹了一個應用取樣鑒相和鎖相原理製作的微波ku波段頻率源（頻率合成器） ，其中的壓控振蕩器部分是用介質諧振器（ dr ）設計的。 -
Whereas there are factors, a kind neotype dynamic balancer system of crank and connecting rod mechanism is researched & developed. against the feature of the balance of the rigid rotator, and applying theory of balances, microelectronic technique, digit signal processing technique, software programming technique and the greatly processing function of computer, it realizes such the functions as sampling signal, digit processing, balance calculation, result display
鑒於此，本課題研製開發了一種新型的硬支承結構動平衡測試系統，它是針對剛性轉子的平衡特點，並應用轉子平衡理論、微電子技術、數字信號處理技術、軟體編程技術、及計算機強大的處理功能，實現了信號採集、數據處理、平衡計算、結果顯示等多功能於一體。
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