高頻頻譜 的英文怎麼說

中文拼音 [gāobīnbīnpǔ]
高頻頻譜 英文
high frequency spectrum
  • 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...
  • 譜 : Ⅰ名詞[書面語]1 （按類別或系統編成的書或冊子等） table; chart; register 2 （指導練習的格式或圖形）...
  • 高頻 : high frequency
  • 頻譜 : frequency spectrum; frequency content; spectrum; power density spectrum; power spectrum; [系統] s...
  1. Determination of cao, mgo, sio2, fe2o3, tio2 in alundum powder by icp - aes

    剛玉粉中氧化鈣氧化鎂二氧化硅三氧化二鐵二氧化鈦的電感耦合高頻等離子體發射光譜法測定
  2. 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。
  3. This paper described that the working theory and characteristics by high frequency argon discharge gas chromatograph, application of analysis cum in high purity argon product

    摘要本文敘述了高頻氬放電離子氣相色譜的工作原理、特點；以及在高純氬氣產品分析中的應用。
  4. The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db

    通過在裝置上做的兩種陰極的對比實驗，結果顯示:碳纖維陰極的使用，改善了電子束質量，使輻射微波的脈寬增加了30 %以上，輻射主瓣方向上的功率密度提高了3db以上，頻譜分佈較純凈，實現了微波的高效輸出。
  5. In various speech character parameters, formant frequency, bandwidth and pitch frequency are chosen as voice character parameters. the reasons are as follows : hearing apperceive experiments indicates that formant frequency can stand for a majority of voice information, while average pitch frequency can explain 55 % ability of speaker verification

    數據結果與多項式回歸和線性多變量回歸相比，支持向量回歸既提高了泛化性能又避免了頻譜不連續性，從而使轉換語音與目標語音的頻譜距離失真分別減少了33 . 29 %和35 . 24 % 。
  6. By using ofdm technology, we can redu ce the baud rate with a high frequency spectrum utility factor. another advantage of this technology is that the transmission can combat the intersymbol interference ( isi ) at the receiver without complex adaptive equalizer

    Ofdm既有較高的頻譜利用率，也有效地降低了碼速率，在不使用復雜的通道均衡技術的條件下仍然可以較好地克服接收時由多徑效應帶來的碼間串擾（ isi ） 。
  7. Qpsk modulation for digital television using advanced digital signal processing technology, full compliance with dvb - s standard, the receiving end can be directly used for receiving digital satellite receiver. it must not only be able to achieve a higher utilization of the spectrum, with a strong anti - jamming and high performance. fm microwave equipment and simulation and will be good compatibility

    Qpsk數字電視調制器採用了先進的數字信號處理技術，完全符合dvb - s標準，接收端可直接用數字衛星接收機進行接收。它不但能取得較高的頻譜利用率，具有很強的抗干擾性和較高的性能價格比，而且和模擬fm微波設備也能很好的兼容。
  8. Through the research of direct digital synthesizer ( dds ) used as a divider in phase lock loop ( pll ), a frequency synthesizer with small frequency resolution ratio and high purity frequency spectrum can be realized

    摘要通過對直接數字合成器在鎖相環路中作為分頻器應用的研究，使頻率合成器可以在實現超細頻率解析度的同時達到高的頻譜純度。
  9. The synthesizer with the low phase noise, highly pure spectrum and high - speed frequency agility has became the tendency to the frequency synthesis technology

    低相位噪聲、高純頻譜和高速捷變的頻率合成器成為頻率合成技術發展的主要趨勢。
  10. As a new mechanism of producing laser, lwi can produce laser in the fields that it is very difficult even impossible to get laser ( x or even r spectrum ) using the traditional methods. so nowadays it has attracted the interest of a lot of people

    作為一種產生激光的新型機制，應用無反轉激光可以在應用傳統激光理論和方法很難甚至不可能產生激光的高頻光譜區（ x -射線甚至-射線區）產生激光，因此近年來引起人們的很大興趣。
  11. 8psk has the potential to increase the data rate of existing gsm systems by a factor of three

    與原有的gmsk調制方式相比， 8psk不但可以提高數據率，而且可以獲得較高的頻譜效率。
  12. The test results show that different patterns of pd correspond to different demodulating signal waveforms, the pd phase angle in ac, and spectrum characteristics. therefore the pd patterns can be recognized by the uhf characters of different pd signals in gis

    試驗結果表明，不同缺陷類型的局部放電在其檢波信號波形、局部放電工頻相位分佈和超高頻頻譜特徵是有所不同的，可以依據這些特徵對gis內的局部放電類型進行識別。
  13. The advantages of the modulation method omsk ( the gaussian pre - filtered minimum shift keying ) include bandwidth efficiency and constant envelope

    Gsm系統中採用了gmsk調制方式， gmsk調制恆定包絡，具有較高的頻譜利用率。
  14. Due to a variety of its advantages such as high bandwidth efficiency and robustness against multi - path delay, it has been widely used in the fields of digital audio broadcasting, digital television and wireless local area networks and is likely to become one of key technologies of fourth generation mobile communications

    由於具有很高的頻譜利用率，很強的抗多徑延遲能力，它已經廣泛的應用在數字音頻廣播、數字電視以及無線局域網當中，並有望成為第四代移動通信的關鍵技術之一。
  15. Synthesizers with low phase noise, highly pure spectrum, high resolution and fast frequency jump speed have dominating development direction of the frequency synthesis technology

    低相位噪聲、高純頻譜、高解析度和高速頻率捷變成為頻率合成技術發展的主要趨勢。
  16. In the highly crowded hf band, available continuous bandwidth is very narrow, this threaten the viability of hf radar based on the continuous spectra signal system seriously

    在擁擠的高頻頻段，可用的連續帶寬比較窄，基於連續譜信號體制的高頻雷達的生存能力受到嚴重威脅。
  17. Ofdm is one of multi - carrier digital modulation techniques, in which a single high data rate data stream is transmitted using a number of lower data rate sub carriers, it has many properties, such as robustness to multi - path fading, high data rate transmission capability with high bandwidth efficiency, and so on

    Ofdm是一種特殊的多載波傳輸方式，它使用一系列低速子載波并行傳輸數據，使得它具有抗多徑干擾的能力、能以很高的頻譜利用率實現高速數據傳輸等。
  18. To solve the former problem, hiarachical cellular system ( hcs ) could be applied, where macrocells cover low - teletraffic areas and serve slow calls, while microcells overlay high - teletraffic areas and serve fast calls. by this means, better spectrum efficiency can be achieved and the number of handoffs can be decreased

    對於前者，採用多層蜂窩系統（ hcs ） ，使得宏蜂窩覆蓋低話務量地區並為快速呼叫提供服務，而微蜂窩覆蓋高話務量地區並為慢速呼叫提供服務，這樣既保證較高的頻譜利用效率，又能有效地降低呼叫的切換次數。
  19. The third generation of mobile communications ( 3g ) is a great revolution in the history of mobile communications, which can provide multimedia service to the mobile users with very high frequency efficiency

    第三代移動通信（ 3g ）是移動通信發展史上的一次重大革命，它將以很高的頻譜利用率向移動用戶提供寬帶多媒體業務。
  20. Point on the is again and again the s high segment is with of the low segment at oppositely loudly the degree objective relation for exsitting of ; also point a voiceses the way the way of high fidelity and left voice similar to signal for the way s of right voice of. equilibrium

    指在音頻頻譜的高段和低段之間在相對響度上所存在的客觀關系也指雙聲道立體聲左聲道和右聲道之間的信號的相同平衡。
分享友人
分享到 Line

分享到臉書