頻率 的英文怎麼說

中文拼音 [bīn]
頻率 英文
frequency; rate
  • : 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...
  • : 率名詞(比值) rate; ratio; proportion
  1. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念,並以加速度模糊函數為分析工具,詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。
  2. The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated

    利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系,系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線,通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。
  3. Simulations of gain and aberrance are done to study the amplification of pulse signal with a frequency of 0. 25mhz

    頻率為0 . 25mhz的脈沖信號放大進行了模擬,分析了其增益和脈沖畸變隨放大參量的變化情況。
  4. It may limit the amount of sparkover to an acceptable rate.

    它可把火花放電頻率控制在允許范圍內。
  5. In other words, the frequencies of those waves should be constant in time and space a priori

    換句話說,那些波的頻率根據推斷在時空上是常定的。
  6. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著,對自適應調制系統中的通道估計問題難點,詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然( ml )估計和最大后驗概( map )估計演算法,針對平衰落通道,我們模擬了map估計和ml估計的方差與導符號長度的關系,模擬結果表明,錯誤方差受多譜勒頻率的變化影響最大,並且對實際的自適應調制系統,導符號長度的取值超過20個符號長度時, map通道估計明顯優于ml通道估計。
  7. Hot firings show that the frequency of the oscillating shock is close to the acoustic frequency.

    熱試結果表明,振蕩激波的頻率與聲相近。
  8. Preferred frequencies for the acoustical measurement

    聲學測量中的常用頻率
  9. In addition, this paper numerically investigated the influence of the lumped parameters of the gunn diode on the frequency of the oscillation, and the tuning techniques of the oscillation frequency of the active antenna

    本文還利用fdtd法數值研究了gunn二極體的集總參數對振蕩頻率的影響以及有源天線振蕩頻率的調諧技術。
  10. Based on these theories, this paper discusses the method of design of the rectangular gunn integrated active microstrip patch antenna in detail. the size of the active antenna and the location of the device in the antenna is obtained at the specified operation frequency

    根據這些理論,詳細討論了一種集成gunn二極體的矩形有源微帶貼片天線的設計,得到了在給定的工作頻率下的有源天線尺寸和有源器件的位置。
  11. The thermal damping is maximum for frequencies corresponding to pulsations that are somewhere between isothermal and adiabatic.

    當脈動處于等溫和絕熱之間某個狀態時,相應頻率下的熱阻尼是最大的。
  12. The frequency response function includes an aerodynamic transfer function.

    頻率的主函數包括主動力傳遞函數。
  13. Automatic frequency control afc

    自動頻率控制
  14. Afc automatic frequency control

    自動頻率調節
  15. Ukchanges in the state of aggregation can lead to shifts of up to 10 cm-1.

    物質聚集態的變化可能導致10厘米-1的頻率位移。
  16. How often does severe clear air turbulence occur over tropical oceans

    熱帶海洋晴空發生強氣流渦動的頻率如何?
  17. The frequency of albinism gene in the andrias davidianus population in the giant salamander hole in xingwen county, sichuan province

    四川省興文縣大鯢洞的大鯢種群中白化基因的頻率
  18. The analysis of applying antibiotic the most frequently used medicines were those for balancing water, electrolite, acid and alkalescence ( 28. 8 % ) in the body, and followed by anti - infection ( 15. 3 % ) and vitamin ( 9. 8 % )

    手術病人抗生素應用分析使用頻率最高的藥品是調節水、電解質和酸堿平衡類藥,佔28 8 ,其次為抗感染藥,佔15 3 ,第三位是維生素類藥品,佔9
  19. Table 2. the frequencies of ace genotype and allele

    表2 .各組血管緊張素轉換酶基因型和等位基因頻率的比較
  20. Epinephrine increases respiratory rate and tidal volume, and thereby reduces alveolar carbon dioxide content in normal subjects.

    腎上腺素增加呼吸頻率和潮氣量,故可降低正常人的肺泡含量。
分享友人