高頻帶 的英文怎麼說

中文拼音 [gāobīndài]
高頻帶 英文
high-frequency band; high band
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 高頻 : high frequency
  1. Based on the real situation of submarine and antisubmarine warfare ( asw ), according to the classical design theory of transducer or transducer array, a sonar will be researched and made, which has the feature of more wider bandwidth, more lower operating frequency, more lager radiation acoustic power, more farther operating distance, more higher researching efficiency and more higher directive accuracy

    本文根據現代潛戰和反潛戰（ asw ）的實際情況，按照經典的換能器和基陣的設計理論，研製聲吶，旨在擴展其頻帶寬度、降低其工作頻率、增大其發射功率、擴大其作用距離以及提高其搜索效率和定向準確度。
  2. In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays

    本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。
  3. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  4. Compared with traditional mechanical and optic gyros, hrg has such advantages as no high speed circumvolving or moving parts in structure, no warm - up time and short start - up time, wide signal band in frequency, low excursion noises, great endurance in over loading, nuclear radiation and short time power off, small bulk, light weight, low power cost and long life, which is suitable for space applications

    與傳統的機械陀螺和光學陀螺相比，半球諧振陀螺具有如下優勢:結構上無高速轉子、無活動部件;不需預熱，啟動時間短;信號頻帶寬，漂移噪聲低;能承受大的機動過載;抗核輻射，並可經受短時間電源中斷的影響;體積小，重量輕，功耗低，壽命長，非常適合空間應用。
  5. Mattias lampe, ronghong jin, junping geng, xianguang guo : invention patent “ one kind of directional / omni - directional antenna ” ( submitted )

    丁敏，金榮洪，楊熹，耿軍平，勞佳，吳琦：發明專利「甚高頻超寬帶天線設計」 （已提交） 。
  6. In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab

    針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。
  7. Uhf band pass filter

    特高頻帶通濾波器
  8. Helical - scan video tape cassette system using 8 mm magnetic tape - 8 mm video - high - band specifications for hi 8

    8mm磁帶螺旋掃描盒式磁帶錄像系統. 8mm錄像機. hi8高頻帶規范
  9. High band connector, hundred mega - bit rate

    高頻帶連接器， 100兆比特。
  10. Vhf bandpass filter

    甚高頻帶通濾波器
  11. Helical - scan video tape cassette system using 8 mm magnetic tape ; 8 mm video ; part 3 : high - band specifications for hi 8

    使用8mm磁帶螺旋掃描盒式8mm視頻系統. 8mm錄像機.第3部分: 8號hi的高頻帶規范
  12. Telecommunications - electromagnetic compatibility and radio spectrum matters - radiotelephone transmitters and receivers for the maritime mobile service operating in vhf bands - part 1 : technical characteristics and methods of measurement v1. 3. 1

    電信.電磁兼容性和無線電頻譜情況.工作在甚高頻帶的海上移動業務用無線電話傳送機和接收機.第1部分:技術特性和測量方法
  13. Finally yet importantly, sctcm is researched which combines sccc with high bandwidth efficiency modular method tcm. besides, the corresponding schemes of encoding and modulating of sctcm, the corresponding demodulating and decoding algorithm, and the performance simulation are also presented

    最後討論了sccc與高頻帶利用率調制方式結合的sctcm ，研究了適用於sctcm系統的編碼調制方案和解調譯碼演算法，並給出了性能模擬。
  14. Proposed by the european broadcasting union, eureka 147 is widely applied in europe, canada and part of asia. the technology operates in the new l - band or vhf band iii. its 1. 5 mhz bandwidth can accommodate a maximum of about 1. 2 mbps of data

    Eureka147是現時歐洲廣播聯會（ europeanbroadcastingunion ）推廣的制式，被歐洲、加拿大和部份亞洲地區所採用，它的設計是需要另外在新的Ｌ頻帶或甚高頻帶vhfbandiii操作，頻寬1
  15. Rthk tested dab in l band in 1998. since then, dab technologies have undergone improvements ; rthks current test of dab vhf band iii is expected to offer a better indoor and outdoor performance. moreover, the price of the receivers has gone down substantially

    港臺於1998年測試dab時，是以l頻帶l band進行，這幾年來dab技術上有所改進，今次dab測試極高頻帶vhf band iii ，相信有較佳的室內和室外接收的效果，而接收器的價格也經已回落。
  16. The research result demonstrates that along with the increment of reynolds number, the root mean square value of outer fluctuating magnitude of the external diameter in fall frequency band increases, the root mean square value of fluctuating magnitude of the external diameter in high frequency band decreses, demonstrating that the fluctuation of flexible pipe wall changes fluctuation don field of original rigid pipe, large - size eddy motion increases and small - size eddy motion decreases, this reduces energy loss and increases friction reduction effectiveness

    研究結果表明：隨著雷諾數的增加，全頻帶的外徑脈動的均方根值加大，但高頻帶外徑脈動的均方根值減小，說明柔性管管壁脈動確實改變了原剛性管的脈動流場，大尺度渦的運動加劇，低尺度渦運動減弱，從而使得能量損失減少，減阻效果增大。
  17. The arising mechanism and character of leakage current are analyzed. based on these analyses, a high precise and wide bandwidth sensor is developed

    分析了泄漏電流的產生機理和特點，並在此基礎上研製了一種精度高、頻帶寬的泄漏電流傳感器。
  18. These methods are analyzed and disadvantages of them are pointed out. the nature and character of leakage current are analyzed. a high precised and broad bandwidth sensor is developed

    本文分析了泄漏電流的產生機理和特點，並在此基礎上研製了一種精度高、頻帶寬的泄漏電流傳感器。
  19. The frequency band extension with time base jitter is also studied by simulation. the results show that the compensation of time jitter can reduce the error of signal and then increase the accuracy of frequency band extension

    對時基抖動的頻帶展寬技術的模擬結果表明，通過擴展的概率密度法對時基抖動的補償，可以減小信號的誤差，因而提高頻帶展寬的精度。
  20. The time base drift deduced by the change of temperature is discussed particularly and the compensation method of it is analyzed. finally, we also studied frequency band extension under time base distortion condition by simulation. the results show that the compensation of time base distortion can reduce the error of signal and then increase the accuracy of frequency band extension

    首先，介紹時基失真的相關概念及其對測量信號的影響；其次，對時基失真特性測量的不同方法進行了理論分析和比較，並對分析信號法進行了模擬研究；再次，對時基失真的補償方法進行分析和模擬研究；並專門對溫度變化引起的時基漂移及其補償方法進行了簡要分析；最後，對時基失真條件下的頻帶展寬技術的模擬表明時基失真的補償可以減小信號的誤差，因而提高頻帶展寬的精度。
分享友人
分享到 Line

分享到臉書