power-spectrum computer 中文意思是什麼

power-spectrum computer 解釋
功率頻譜計算機
  • power : n 1 力,力量;能力;體力,精力;(生理)機能;〈常 pl 〉才能。2 勢力,權力,權限;威力;政權;權...
  • spectrum : n. (pl. -tra )1. 【物理學】譜,光譜;波譜;能譜,質譜。2. 【無線電】射頻頻譜;無線電(信號)頻譜。3. 【心理學】(眼睛的)余像;殘像。4. 〈轉義〉范圍,幅度;(連續的)系列。
  • computer : n. 1. 計算者。2. (電子)計算機;計量器。-ism 電子計算機主義〈認為電子計算機萬能等〉。-erite, -nik 計算機專家;計算機工作者。
  1. In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on

    本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題,在此基礎上,從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性,並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋;本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案,即由用戶終端、集中器和電能管理系統所組成的網路系統,其中,用戶終端到配變集中器用低壓電力線作為通道,中間無需其他硬體中繼設備,集中器到電能管理系統用公用電話網作為通道。
  2. Secondly, the nonlinear joint transform correlation recognition and the photorefractive correlation recognition are investigated by computer simulation and experiment, and the research results are given as following : ( 1 ) the correlation discrimination of the jtc can be greatly improved by binarizing the joint transform power spectrum nonlinearly. it is found in our experiment that the threshold magnitude has great influence on the correlation output of a binary jtc

    其次,通過理論分析、計算機模擬和實驗研究的方法,對非線性聯合變換相關識別和光折變光學相關識別進行了研究,並給出了研究結果: ( 1 )對聯合變換功率譜進行二值化處理可以使得功率譜高頻成份得到較大提高,從而大大提高聯合變換相關器的識別能力。
  3. We take the peak current controlled dc / dc boost converter as an example. we compare and analyze power spectrum of input inductance current quantitatively of chaotic operation and periodic operation of converter. the computer simulation results demonstrate that power spectrum of input current has lower peak of power spectrum of chaotic operation than it of periodic operation, and then emi level is reduced

    以一個峰值電流控制dc dcboost型變換器為研究對象,在分析電路混沌現象的基礎上,分別對該電路工作于混沌和周期兩種狀態下的輸入電流頻譜進行了定量分析對比,證實了在相同輸出電壓條件下,工作于混沌狀態下電路輸入電流的頻譜與工作于周期狀態下電路輸入電流的頻譜相比,頻譜峰值減小,具有降低emi水平的效果。
  4. A lower voltage power line carrier communication system on spread spectrum technology based on this condition is designed, which is composed of a singlechip computer at89c51 and pl2101b. this article described the hardware and software of the system, and the field - test showed the system is feasible

    在此基礎上,開發了基於擴頻技術的低壓電力線載波通信系統,系統主要由at89c51和擴頻通信晶元pl2101b組成,完成了該系統的硬體設計、製作,軟體的編程和調試。
  5. That is, there exists an optimal threshold, which lies in the average gray of the joint transform power spectrum by computer simulation

    並通過計算機模擬,確定出該最佳閾值位於聯合變換功率譜的平均灰度值附近。
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