spectrum line 中文意思是什麼

spectrum line 解釋
頻譜線
  • 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。
  • 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...
  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. This instrument can meter the electric level, frequency spectrum, carry to noise ratio, a / v, cobbly ratio, voltages of the ac trunk line and the battery. furthermore it can display the above information on the lcd and store them in the eprom

    該場強儀可以對有線電視系統的電平、頻譜、載噪比、 a v比、系統不平度、交流干線和電池電壓等進行測量，並通過液晶顯示，結果保存於eprom中。
  3. 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。
  4. Motion of a star across the line of sight causes no change in its spectrum.

    恆星橫越視線方向的運動，在它的光譜中不會引起什麼變化。
  5. By using matsubara green function theory, we have studied the magonon spectrum and calculated the magnon dispersion curve on the line in the brillouin zone for different parameters in the system

    利用格林函數方法研究了磁振子聲子相互作用下的二維絕緣鐵磁體的磁振子譜，計算了布里淵區的線上的磁振子色散曲線。
  6. On - line measurement and frequency spectrum analysis

    在線測量頻譜分析
  7. A particular spectrum line corresponds to a certain definite light wavelength.

    某特定的譜線就代表一個確定光的波長。
  8. Based on wavelet packet decomposition （ wpd ）, entropy threshold method （ etm ） has been put forward to reject the discrete spectrum interference （ dsi ） in on - line pd monitoring

    首次提出用於抑制局部放電在線監測中周期性窄帶干擾的小波包變換熵閾值法（ etm ） 。
  9. Hence, the spectrum is called a line spectrum ; it is also called an atomic emission spectrum, since it is produced by emission of light from excited atoms

    因此，這個光譜也被稱為線光譜，也被稱為原子發射光譜，因為它是由被激活的原子發出的光產生的。
  10. ( 2 ) according to lambert - beer law and related optical signal processing technology, analysis formula is presented to express the relationship between spectrum intensity and gas density after the two widely used semiconductor light resource led and dfbld functioned with inferred absorption spectrum line

    （ 2 ）依據朗伯比爾（ lambert - beer ）定律和光學信息處理技術，給出了兩種常用半導體光源led和dfbld與紅外吸收線作用后，光譜分量強度與氣體濃度關系的解析表達式。
  11. ( 3 ) the author applied wavelet analysis in the data processing of airborne radioactive survey, and analyzed the effect of wavelet used in spectrum data processing, line data processing and region data processing. the author had proved that the wavelet used in spectrum data processing can gain more true and more ideal information than traditional data processing method, and can accurately identify information which is beyond main energy windows by practice data. the author considered it is effective to extract abnormal information when the wavelet used in line data processing, and it is effective to eliminate the belt of airborne radioactive survey data when the wavelet used in region data processing

    有效的融合了遙感航測信息，提高了工作效率； （ 2 ）根據光學有關物理性質，製作的模擬反射率圖，囊括了tm數據七個波段的信息，使得圖像質量、地物解析度得到了提高； （ 3 ）在航放數據處理過程中引入了小波分析，系統分析了小波在處理單點數據、測線數據、測區數據的應用效果；用試驗數據證明了小波處理單點數據可得到較傳統數據處理方法更為真實、理想的譜數據，能準確的識別主能量窗以外的信息；認為處理線數據，可以提取埋藏於噪音中的異常信息；處理測區數據，對消除航放數據的條帶有一定的效果。
  12. The recent researches on observations of h line profile asymmetry in chromospheric flare are reviewed. spectral properties, the corresponding mechanisms of asymmetry, and reproduction of observational spectrum by using semi - empirical atmosphere model are dicussed in detail. at last, the main problems to be solved and further researches are put forward

    綜述了近年來太陽色球耀斑爆發時h譜線不對稱性的研究進展，著重討論了光譜特徵和與其對應的不對稱性產生機制，以及利用大氣半經驗模型再生觀測譜線輪廓不對稱性等方面，並提出尚待解決的主要問題和進一步的研究方向。
  13. Scale choosing based on spectrum analysis in a novel wavelet principle for fault line selection

    小波故障選線新原理中基於頻譜分析的尺度選擇
  14. 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
  15. Measuring frequency of received signal by a spectrum line ratio method

    譜線比值法測量接收信號的頻率
  16. Solar images can be obtained by four telescopes at 13. 0nm, 17. 1nm, 30. 4nm and 19. 5nm respectively. it is important for calibration of eut in orbit selecting a proper spectrum line

    四個通道都是在特定譜線對日進行觀測，因此必須選一條公共的譜線經望遠系統對日成像，以便完成望遠鏡在軌校準。
  17. Breadth of spectrum line

    譜線寬度
  18. Research on spectrum line refractive index of triangular prism with spectrometer measuring

    分光計測量三棱鏡譜線折射率的研究
  19. To detect and track weak signals, feature extraction is studied on the base of feature anlysis, and a viterbi spectrum line tracker with double thresholds is exploited

    為了加強對弱信號的檢測和跟蹤，在特徵增強的基礎上，研究了特徵提取的方法，開發了雙閾值viterbi線譜跟蹤器。
  20. Through analyzing and calculating, sensitivity of solar ciii ( 97. 7nm ) spectrum line can meet demand of spectrum line for calibration of eut in orbit. so solar ciii ( 97. 7nm ) spectrum line can be applied to calibration of eut

    經過一系列的分析計算，太陽的c （ 97 . 7nm ）譜線對eut靈敏度滿足在軌校準使用，因此本文採用了c （ 97 . 7nm ）作為在軌校準譜線。
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