band width 中文意思是什麼

band width 解釋
頻帶寬度,波段寬度
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  • width : n. 廣闊；寬度；幅度；（布匹的）門面；幅員；廣博。 12 feet in width 闊 12 英尺。 width in the clear 【林業】除皮直徑。
  1. But the seebeck coefficient was reduced by pd - substituted because of the interdict band width was reduced

    Pd的取代也同時使zrnisn基化合物的禁帶寬度減小，降低了體系的seebeck系數。
  2. This article puts forward a solution named divide - assemble by deducing the size of bp neural network to overcome entering the local best point, the dividing process is that a big bp neural network is divided into several small bp neural networks, every small bp neural network can study alone, after all small bp neural networks finish their study, we can assemble all these small bp neural networks into the quondam big bp neural networks ; on the basis of divide - assemble solution, this article discusses the preprocessing of input species and how to deduce the size of bp neural network further to make it easy to overcome entering the local best point ; for the study of every small bp neural network, this article adopts a solution named gdr - ga algorithm, which includes two algorithms. gdr ? a algorithm makes the merits of the two algorithms makeup each other to increase searching speed. finally, this article discusses the processing of atm band - width distribution dynamically

    本文從bp網的結構出發，以減小bp神經網路的規模為手段來克服陷入局部極小點，提出了bp神經網路的拆分組裝方法，即將一個大的bp網有機地拆分為幾個小的子bp網，每個子網的權值單獨訓練，訓練好以後，再將每個子網的單元和權值有機地組裝成原先的bp網，從理論和實驗上證明了該方法在解決局部極小值這一問題時是有效的；在拆分組裝方法基礎上，本文詳細闡述了輸入樣本的預處理過程，更進一步地減小了bp網路的規模，使子網的學習更加容易了；對于子網的學習，本文採用了最速梯度? ?遺傳混合演算法（即gdr ? ? ga演算法） ，使gdr演算法和ga演算法的優點互為補充，提高了收斂速度；最後本文闡述了用以上方法進行atm帶寬動態分配的過程。
  3. Waveguide assemblies, flexible, twistable double ridge band width ratio 2. 4 1, class 5, detail specification for

    5類2 . 4 1雙脊可扭軟波導組件詳細規范
  4. Bw band width

    頻帶寬度帶寬
  5. The center frequency of the vco is 28. 8ghz and the band width is about 20 mhz

    經過測試，得到振蕩頻率為28 . 8ghz ，調頻帶寬20mhz ，與期望結果相差較大。
  6. The center frequency of the vco is 14. 14ghz with band width of more than 100mhz. the output power is 2 ~ 6mw

    根據測試結果，該vco電路的中心頻率為14 . 14ghz ，調頻帶寬大於100mhz ，帶內輸出功率在2 6mw之間。
  7. The specifications of the intensity modulator at 1. 3 m involved with extinction ratio better than 25 db, and low drive voltage, and wide operation band width and so on

    該強度調制器工作於1 . 3 m ，具有大於25db的消光比、低驅動電壓、寬工作帶寬的特點。
  8. The specifications of the intensity modulator at 1. 054 m involved with extinction ratio better than 50 db, and low drive voltage, and wide operation band width and so on

    該強度調制器工作於1 . 054 m ，具有大於50db的消光比、低驅動電壓、寬工作帶寬的特點。
  9. Acc1 - acc2 adjust the filter pass band width

    Acc2調整過濾器通路波段的貸款。
  10. Millimeter wave system has many distinct advantages such as miniaturizing system components, increasing frequency band width, providing higher detectability, uneasily influenced by atmosphere conditions, etc. this makes millimeter wave technique get the increasingly extensive application in radar, communications, electronic warfare, guidance, remote sensing, radiation survey, therefore the research of millimeter system is very vital for civil, the industry, national defense

    毫米波系統具有可以使元部件小型化、增加系統帶寬、提供高解析度以及受大氣條件的影響較小等許多明顯的優點，這使得毫米波技術在雷達、通信、對抗、制導、遙感和輻射測量等技術領域中得到日益廣泛的應用，所以毫米波系統的研究對於民用、工業、國防具有重要的意義。
  11. The laser acquisition, pointing and tracking ( apt ) technology of high precision and large band - width is the key technology of space laser communication

    高精度、寬帶寬的激光捕獲、對準和跟蹤技術（簡稱apt ）是空間激光通信的一個關鍵技術。
  12. Partial substitution of manganese in lixmn204 by cobalt or lithium can reduce the fermi energy, increase the. net charge of lithium ion, and diminish the value band width, corresponding to the drop of the discharge voltage, the loss of the reversible capacity, and the improvement of the cycling performance due to increasing structural stability, respectively

    在limn2o4中摻入鈷和用鋰離子代替16d位錳離子將使材料的費米能減小，放電電壓降低；摻雜態中部分鋰離子的凈電荷增大，鋰離子與氧離子的相互作用增強，可逆容量降低；摻雜態的價帶寬度變窄，結構的穩定性增加，從而改善循環性能。
  13. The paper includes the contents as follows : the second chapter introduces the basic theory of bp neural network, chapter 3 puts forward a solution named divide - assemble, chapter 4 introduces the preprocessing of input population, chapter 5 introduces the basic theory of genetic algorithms, chapter 6 discusses gdr - ga algorithms, 7 part introduces the processing of atm band - width distribution dynamically and gives several program modules among them. chapter 8 introduces the interface, running and results about the software system, the last chapter summarizes research work of this dissertation and further researches arc prospected

    本文主要包括以下內容：第2部分闡述bp神經網路基本理論，第3部分介紹了拆分組裝方法，第4部分主要介紹了bp神經網路輸入樣本的預處理，第5部分介紹了遺傳演算法的發展及其基本理論，第6章介紹的是最速梯度? ?遺傳演算法，第7部分介紹了atm帶寬動態分配過程、子網與總網的學習過程和其中的一些關鍵程序模塊，第8部分介紹的是該系統界面和運行情況，最後一部分總結了論文所做的工作和進一步工作設想。
  14. The main content and creative work in this dissertation include : 1. simulate the echoes of the radar, namely produce the lfm signals with band width equaling 5mhz, time width in 9 s ~ 42 s and analyze them in frequency domain pulse compression. at the same time suppress the clutter and indicate targets

    本文完成的主要工作和創新之處有: 1 .通過模擬模擬回波信號，產生了帶寬為5mhz ，時寬在9 s ~ 42 s范圍內帶目標和噪聲雜波的lfm信號，並對其進行了頻域脈沖壓縮的分析，抑制雜波並顯示出目標。
  15. The main content and creative work in this dissertation include : ( 1 ) the characteristics of the lfm signals with band width equaling 5mhz, time width in 9 s ~ 42 s, nlfm signals with band width equaling 5mhz, time width in 9 s ~ 21 s are analyzed in frequency domain pulse compression. the corresponding side - lobes suppression filters are designed and optimized

    本文完成的主要工作和創新之處有: （ 1 ）分別完成了對帶寬為5mhz ，時寬在9 s ~ 42 s范圍內lfm信號，帶寬為5mhz ，時寬在9 s ~ 21 s范圍內nflm信號的頻域脈沖壓縮的分析和旁瓣抑制濾波器的設計及優化。
  16. This system can process linear frequency modulation signals ( lfm ), nonlinear frequency modulation signals ( nlfm ) and taylor quadriphase code signals with time width under 42 s and band width under 5mhz. the experimental results demonstrate that the specification characteristics meet the requirements of practical radar systems

    該系統可處理時寬在42 s以內?帶寬在5mhz以下的線性調頻信號（ lfm ） ，非線性調頻信號（ nlfm ）和taylor四相碼信號，且技術指標完全滿足實用系統的設計要求。
  17. Band width of video amplifier

    視頻放大器頻寬
  18. The amplifier request band width, to adapt radiation pulse randomness and its extremely quick front

    放大器要求頻帶寬，以適應輻射脈沖的隨機性和其極快的前沿。
  19. This dissertation aims at weak signal detection technology in micro - mechanical gyros, and digital correlated demodulation which can improve signal detecting accuracy is simulated ; methods of compressing signal band width to improve signal - to - noise ratio and analyzing error production to decrease system error are researched

    針對石英音叉微陀螺的微弱信號檢測技術，本文通過模擬表明:利用數字相關解調方法提取陀螺信號可以很好地提高檢測精度。
  20. In the part of window, a best window must own the following character : ( 1 ) the smallest band - width in the place of 3db, as well as main - lobe width ( 2 ) the biggest side - lobe peak - value of must be as possible as small

    就窗函數而言，引入實驗的七種窗函數中，有限帶寬、三角形窗以及餘弦窗是卷積窗函數比較理想的選擇。
分享友人
分享到 Line

分享到臉書