acoustic band 中文意思是什麼

acoustic band 解釋
聲頻帶
  • acoustic : adj. 1. 聽覺的；聲學的。2. 助聽的；傳音的。3. 原聲的，不經過電子設備傳聲的。adv. -tically 在聽覺上；在聲學上。
  • 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；...
  1. The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.

    聲發射源與接收訊號傳感器間的距離以及環境噪聲的電平是選擇頻帶的主要依據。
  2. Based on the analysis and study of the primary principle and countermeasure process of the underwater acoustic countermeasure equipments, the mathematical models of the typical underwater acoustic countermeasure equipments such as the wide - band noise jammer target radiation noise simulator echo simulator and the gas bubble are presented

    在詳細分析、研究水聲對抗器材有關基本概念、基本工作原理及對抗過程的基礎上，歸納、總結了噪聲干擾器、目標輻射噪聲模擬器、主動回波模擬器及氣幕彈等當前典型水聲對抗器材的數學模型。
  3. Zno film is a novel - direct compound semiconductor with wide band gap energy of 3. 37ev and a exciton binding energy 60mev at room temperature. due to its the prerequisite for visible or ultraviolet light emission at room temperature, it has the tremendous potential applications for ultraviolet detectors, leds, lds. zno thin film is used widely and effectively in the fields of surface acoustic wave devices, solar cell, gas sensors, varistors and so on because of its excellent piezoelectrical performance

    室溫下禁帶寬度為3 . 37ev ，激子束縛能為60mev ，具備了室溫下發射紫外光的必要條件，在紫外探測器、 led 、 ld等領域有著巨大的發展潛力； zno薄膜以其優良的壓電性能、透明導電性能等使其在太陽能電池、壓電器件、表面聲波器件、氣敏元件等諸多領域得到廣泛應用。
  4. Technology research on match of wide band nderwater acoustic transducer

    水聲寬帶換能器匹配技術研究
  5. In order to achieve high data rates on the severely band - limited underwater acoustic ( uwa ) channels, bandwidth - efficient modulation techniques must be employed, together with some sophisticated signal processing algorithms, such as adaptive equalization technique for the intersymbol interference caused by channel multipath propagation

    在帶寬嚴重受限的水聲通道中實現高數據率通信，必須使用高帶寬利用率調制技術，並結合自適應均衡等技術以有效地克服通道多途傳播產生的符號間干擾。
  6. Mr blair was in a band called ugly rumours while at university labour mps and peers have given prime minister tony blair a steel - string acoustic guitar as a leaving present

    英國工黨的議員和貴族們送給即將離任的布萊爾首相一把鋼弦木吉他作為告別禮物。
  7. This series includws silent electronic violin violin, vioia, cello, silent electronic classic classic guitar, silent electronic acoustic guitar and silent bass guitar, in which the silent elcctronic violin has been applicd invention parent in china and abroad, this series of productions can be played widely in electronic instrument band

    吉他-靜音電聲民謠吉他-靜音電聲低音吉他，其中靜音電聲小提琴已申請中國和國際多國發明專利，該產品可以組成歐美流行的電聲樂隊，靜音電聲提琴系
  8. Nowadays, high data rate communication through band - limited underwater acoustic channel ( uwac ) is of general interest in the field of underwater communication

    通過帶寬有限的水聲通道獲得高速數據傳輸，是目前水聲通信領域的研究熱點。
  9. Traditionally, zno is used as surface acoustic wave devices ( saw ), bulk acoustic devices ( baw ), gas sensors, varistors, transparent electrodes, uv - detectors, and etc. in recent years, zno has gained more and more attention as a wide band semiconductor

    傳統上， zno薄膜被廣泛應用於聲表面波器件、體聲波器件、氣敏傳感器、壓敏電阻、透明電極、紫外探測器等領域。近年來， zno作為寬禁帶半導體光電材料的研究越來越受到人們的重視。
  10. 4. according to the analyses of underwater acoustic channel and long - range remote control receiving system, we designed the long - range remote control receiver, including a low noise prefix - amplifier, a band pass filter and an auto - gain control circuit. finally, the analog part of the receiver is tested and the frequency response of this receiving system is obtained.

    結合對水聲通道特性和遠程遙控接收系統的分析，進行了遠程遙控接收機的設計，包括接收機低噪聲前置放大器的設計、帶通濾波器電路的設計和集成以及自動增益控制電路的設計，最後對接收機模擬電路進行了調試。
  11. With acoustic propagation being mostly forbidden, the findings of the sonic band gaps can potentially be used to design sound insulation systems

    當聲波之波傳被阻絕于聲子晶體之外時，這樣的聲子晶體設計將可用來當作聲音的頻障設計。
  12. The propagation characteristics of underwater acoustic channels and their influences on long - range information transmission are studied thoroughly. based on the sonar equation, the optimal frequency band is abtained. from the calculation about transmission loss, the source level is forecasted. based on the random time varying channel theory, the fading characteristics of long - range underwater acoustic channels are analyzed

    系統、深入地研究了水聲通道特性及其對水聲遠程信息傳輸系統的影響；從聲納方程出發，確定了系統的最佳工作頻段；在聲傳播損失計算的基礎上，給出了聲源級的預報；基於時變通道理論，描述了遠程水聲通道的衰落特性。
  13. At last, the encoding hardware structure of mpeg - 1 layer ii is put forward. second, in the paper, we have analyzed every module of the structure and estimated it ' s complexity. then the sub - band filter bank and psycho - acoustic modules are more investigated

    其次，分析了硬體結構中各個模塊並估計了它們的運算復雜性，然後對子帶濾波器組和心理聲學模型作了進一步的探討，提出了基於fft的高效實現演算法及其硬體結構。
  14. Type sbp301, filters, surface acoustic wave band - pass, detail specification for

    Sbp301型聲表面波帶通濾波器詳細規范
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