line spread 中文意思是什麼

line spread 解釋
直線排列
  • line : n 1 線;繩索;釣絲;測深度用繩,捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  • spread : vt (spread)1 伸開,伸長(手臂等),展開,張開(帆等),打開(地圖等);鋪開(氈子等),展寬,展...
  1. Application study on low - voltage power line carrier wave spread spectrum communication system

    低壓電力線載波擴頻通信系統的應用研究
  2. Technique of transmitting data via power line ( pl ) , a new technique developed in recent years , is used to automatize the free collecting system in public service and the management of uptown service 。 this article discussed the advantage , disadvantage and the current state of the power line carrier communication 。 the advantage , method and current state of using spread spectrum technique in power line communication are discussed 。 then the characteristic of low voltage power network was also compendious analyzed 。 in this paper , after introducing the principle of ssc , design of hardware and software of the system are been discussed 。 this system has been put into use , the result has proved its high stability and reliability

    本文研究旨在提供一種利用低壓電力供電網路、低成本、高可靠地實現公共事業收費自動化和小區物業管理智能化的技術應用。討論了電力線載波通信的優、缺點及現狀,擴頻技術在電力線載波通信應用的優點、方式和現狀,並對低壓電力線網路的特性進行了簡單的分析。在闡述了擴頻通信的基本原理的基礎上,本文詳細地介紹了電力載波遠程抄表系統的具體實現,包括硬體模塊和管理軟體本系統已投入運行,具有較高的穩定性和可靠性。
  3. Now he passed away for more than 10 years, and the temple masters and people who were enlightened by him are numerous. family temples ( shrine ) and public temples spread all over the world. even now, the people at his line always bowed their heads for him when they are doing the morning and evening prayers

    如今他已歸空十年多,在他手下的點傳師及成全的道親不計其數。家庭佛堂以及公共佛堂可說遍及全世界。如今,只要是他這組線的道親,早?獻香的時候都會為他跪首。
  4. Abstract : a new method for determining proximity parameters, and in electron - beam lithography is introduced on the assumption that the point exposure spread function is composed of two gaussians. a single line is used as test pattern to determine proximity effect parameters and the normalization approach is adopted in experimental data transaction in order to eliminate the need of measuring exposure clearing dose of the resist. furthermore, the parameters acquired by this method are successfully used for proximity effect correction in electron - beam lithography on the same experimental conditions

    文摘:在電子散射能量沉積為雙高斯分佈的前提下,提出了一種提取電子束光刻中電子散射參數,和的新方法.該方法使用單線條作為測試圖形.為了避免測定光刻膠的顯影閾值,在實驗數據處理中使用歸一化方法.此外,用此方法提取的電子散射參數被成功地用於相同實驗條件下的電子束臨近效應校正
  5. Erect the line example, spread the time spirit

    讓勞模精神成為時代的旗幟
  6. According to the theoretical parameters and analysis of clustering identification of noises, and based on the theory of spread frequency communication and bpsk, the remote reading meter system through medium - voltage power line is realized

    根據理論參數及噪聲分類識別分析,以直接序列擴頻通信為理論基礎,採用bpsk調制解調,設計了基於中壓電力線的遠程抄表系統。
  7. Line spread function

    線擴散函數
  8. The design of power line spread spectrum carrier communication system in fpga with digtal technology

    的數字化電力線載波擴頻系統的設計
  9. Firstly, a power line spread spectrum communication scheme was brought out and then it was simulated in system simulation software. system view. with the simulation, the detail design parameter came out

    首先是提出了一種電力線擴頻通信方案,然後利用系統模擬軟體systemview對其進行模擬分析,最後按照vlsi設計流程詳細說明了該晶元的設計過程。
  10. According to the principle of spread spectrum communication, the anti - interference performance of the technology is discussed and the composition of power line spread spectrum communication is described. based on the spread spectrum technique, a method which is low cost, high communications quality and low bit error for power line carrier communication using single - chip software programming is proposed

    利用擴頻通信原理,分析擴頻通信的抗干擾特性,在此基礎上,闡述了電力線載波通信系統的基本結構,提出了一種利用軟體編程實現電力線載波擴頻通信的方法。該方法不增加硬體成本,即能達到提高通信質量、降低誤碼率的目的。
  11. On the basis of increasing the flaw resolution of the x - ray radiographic system, the study is firstly concerned with the analysis made on the influence of such factors as redial sources energy, system noise, optics radiography and scattering on the radiographic system in theory, and the present dissertation looks at the methods for acquiring the radiographic system point sp read function, line spread function and module transfer function ( mtf ). on the basis of these studies, research the spread properties of the tiny flaw making use of mtf, acquiring the properties of system inspecting sensitivity and resolution, based on the system optimization designing

    本文以提高射線成像系統的疵病解析度為前提,首先在理論上對射線源能量、系統噪聲、光學成像、散射等各環節對成像系統的影響進行分析,探討成像系統的點擴展函數、線擴展函數及其調制傳遞函數( moduletransferfunction ,簡稱mtf )獲取方法,在此基礎上,利用mtf研究微小疵病的擴展特點,從而得到系統的檢測靈敏度和解析度給出關系特性,為系統優化設計提供依據。
  12. In the light of the weakness of the traditional method, this thesis improves the point spread function ( psf ) of the imaging system. meanwhile, this thesis adds line process as a priori to set up several convex constraint sets

    針對傳統凸集投影估計法的缺點,本文提出了改進的點擴散函數,同時利用圖像的先驗知識,提出了加入線過程作為凸約束。
  13. This paper presented a general systematic view, application and current development of the power line carrier transmission technology, and clearly compared some existing power line carrier communication chip with each other. then the authors analyze the channel " s characters of low voltage power line, and formed an abstract carrier channel model. using this as its basis, a new kind of transmission technology is designed that adopted transmission technology combining the spread spectrum modulation with channel coding, which can solve the problems above mentioned to a certain degree, and need not pay for high cost

    文章不僅全面地介紹了電力線載波通訊技術的特點、應用及其發展狀況,還對目前的電力線載波通訊晶元進行了比較;並通過對低壓電網通道特性的分析和研究,抽象出其載波通道模型,在此基礎上,提出了將擴頻調制和通道編碼相結合的傳輸技術用於低壓電力線載波通信,這可以在很大程度上解決電力線的干擾問題,且不必付出高昂的代價。
  14. The difficult part is root retention which must be moved together with the enclosing soil without disturbance in a rootball. tree roots normally spread beyond the drip line ( the outer edge of the tree crown )

    其困難之處在於要把樹根四周黏附的泥土形成根團,一併移走,不可弄散。樹根一般都會伸展超越滴水線以外的范圍(即樹冠外圍) 。
  15. 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。
  16. Produce and increase the need in order to meet the clothing trade of the domestic and international chemical fibre day by day, dacron that our company make sew line craft update , the designs and varieties increase year by year, sales volume increases constantly too, sell the area and spread all over all parts of the world

    本公司出品的縫紉線暢銷中外,為了適應國內外化纖服裝行業生產日益增長需要,本公司製造的滌綸縫紉線工藝上不斷改進,花色品種逐年增加,銷售量也不斷增加,銷售地區遍及世界各地。
  17. Observe the bookshelf carefully, find that there are two very suspicious places, utilize the wooden ladder to investigate these two places, find two classics, one is originally the research regarding the energy of the world is distributed, say above whole world spread all over lines of energy, the point of intersect of the line intersection point of energy is the place where energy is gathered, three pieces of energy are held in the world a bit most, stone burst, duncan river district, south america capital of peru to lie in north america new england to lie in britain ; another guide of duncan river book originally, inside copy, state duncan cliff district of river there are intricate underpasses, some can still pass through so far

    仔細觀察書架,發現有兩處地方很可疑,利用木梯調查這兩個地方,找到兩本書典,一本是關於世界能量分佈的研究,上面說整個世界遍布著能量線,而能量線相交處的交點則是能量聚集的地方,世界上有三個能量最盛點,分別是位於英國的石陣、位於北美新英格蘭(英國殖民地)的鄧肯河地區、南美秘魯的首都;另一本是鄧肯河向導書,裏面描述說鄧肯河的懸崖地區有錯綜復雜的地下通道,有些至今仍能通行。
  18. This paper presented a general systematic view of the power - line data transmission through ssc ( spread - spectrum communication ) technology. furthermore, it put forward two application schemes in the automatic reading ammeter system

    系統、全面地介紹了電力線載波通訊技術的特點、應用及發展狀況,並對目前的電力線載波通訊晶元進行了比較;同時,也提出了電力線載波通訊技術運用在遠程自動抄表系統中的應用方案。
  19. Ss - aw distribution automation using distribution line carrier systems - part 5 - 3 : lower layer profilers - spread spectrum adaptive wideband profile

    採用配電線載波的配電自動化第5 - 3部分:低層協議集自適應寬帶擴頻
  20. System scheme of speech coding plus spread spectrum communication was presented based on a full analysis of noise characteristic, attenuation characteristic and impedance characteristic of low - voltage power line. spread spectrum carrier ( abbreviated as ssc ) technology is adopted to overcome problems existing in signal transmission over power line. high quality, low rate mbe compression algorithm was used to complete speech encoding and decoding

    在對低壓電力線路的噪聲特性、衰減特性和阻抗特性三個方面充分分析的基礎上,本文提出一種語音編碼+擴頻傳輸的系統總體方案,採用擴頻載波( spreadspectrumcarrier ,縮寫為ssc )技術克服電力線傳輸信號存在的問題,採用語音合成質量高並具有較低碼率的mbe壓縮演算法完成語音信號的編解碼。
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