低噪聲 的英文怎麼說

中文拼音 [dīzàoshēng]
低噪聲 英文
low noise
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  1. Design of microwave ultra - broad band low noise amplifier

    微波超寬帶低噪聲放大器的設計
  2. In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method

    在數字式保護中，如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增，本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值，以便在提高采樣率的同時降低噪聲誤差的影響，並將其應用於基於32位浮點dsp的新型變壓器保護裝置。
  3. Furthermore, it is also verified by chassis dyno tests that lpg motorcycle has better emission performance than gasoline engine, and has better acceleration performance e. g. exceed acceleration than former gasoline engine, and has low noise level characteristics as well as has ability to achieve equivalent level fuel economy performance compared with former gasoline engine

    整車動力性、經濟性和排放性轉鼓臺架試驗對比表明： lpg摩托車整體排放性能優于汽油摩托車；最高車速略有下降但加速性基本與汽油摩托車相同（超越加速性優于汽油摩托車） ； lpg摩托車具有良好的低噪聲特性，且整車燃料消耗率及其經濟性與原機基本相當。
  4. In the forth chapter the series negative feedback and interstage mismatching are presentation, and a low noise amplifier whose operating frequency is 1. 5ghz 1. 8ghz is developed

    第四章詳細介紹了源極串聯負反饋和級間失配法，並設計和製作了1 . 5ghz 1 . 8ghz低噪聲放大器。
  5. The features of metal screw gear is reducing noise and libration. what is noticeable is : the equivalent plastic straight gear may effectively reduce the noise and libration

    金屬螺旋輪通常特點是能降低噪聲和振動值得注意的是，等效的塑料直輪可以更有效地降低噪聲和振動。
  6. Aiming at the stock market data ( smd ) increasing infinitely, being short, noised seriously, three algorithms are presented to pretreat smd. they do n ' t reduce the useful information but also eliminate the noise ; 2

    基於股市數據無限增長及我國股市數據的時間序列不長、噪聲水平較高，提出三種股市數據預處理演算法，在降低噪聲水平的同時又不損失長程相關的有用信息； 2
  7. Low noise amplifier ( lna ) is widely used in front end of a received set of mobile communication 、 wireless radio 、 blueteech technology and so on 。 the active device is the core of the circuit and has significant effects on the whole equipment, therefore, the design of the active device is vital in lna

    微波低噪聲放大器（ lna ）廣泛應用於移動通訊、無線電、藍牙技術等的rf前端。 lna中的有源器件是整個電路的核心，對整個放大器電路的性能有著重要的影響，因此有源器件的設計是lna的關鍵技術之一。
  8. For designing railway vehicle with lower noise, interior noise is measured in the cushioned berth sleeping car

    為了設計低噪聲鐵道車輛，對我國既有線上的軟席臥車（空調）進行了車內噪聲測試。
  9. Chapter 5 is about the design of millimeter wave solid circuit included frequency multiplier, low noise amplifier, medium power amplifier, mixer, if amplifier lastly, based on the work above, a millimeter wave t / r module is developed and the analysis of the result is also introduced

    第五章毫米波固態電路，詳細分析了毫米波倍頻器、低噪聲放大器、毫米波放大器、混頻器的理論，製作了毫米波混頻器、毫米波放大器、中頻放大器、倍頻器等有源電路。最後，在上述基礎上製作了毫米波t / r組件。
  10. Lower inertia, lower yawp and high precision are the virtues of optical rotary encoders

    光電編碼器具有低慣量、低噪聲、高精度和高解析度等優點。
  11. Microwave assembly detail specification for model wfb2002 low noise amplifier

    微波組件. wfb2002型低噪聲放大器詳細規范
  12. Auto - body structure noise performance analysis and optimization research

    大板車廂與骨架車廂在低噪聲電站上的應用研究
  13. Ultralow noise microwave cryoelectronic system

    超低噪聲微波低溫電子學系統
  14. The subject comes from the cooperation project “ x waveband sar receiver ” between chengdu sine science & technology ltd. and the uestc. the auther is responsible for the demonstrability of the rf receiver and the implemetaion of the lna in the system

    本項目來源於電子科技大學成都賽英科技有限公司與電子科技大學的合作項目「 x波段合成孔徑雷達（ sar ）接收機」 ，筆者進行了該接收機系統方案的論證及接收機前端低噪聲放大器（ lna ）的研製。
  15. The research fruit and software in this paper is strongly applicable to practical engineer, and its highly intelligent optimization and diagnosis ability provide high effective approach for lower noise tyre designing and production

    本文的研究成果和程序具有較強的工程實用性，其高度的智能化優化和診斷功能為低噪聲輪胎設計和生產提供了強有力的高效方法與路徑。
  16. Latest research on noise control technology of low noise diesel engine set

    低噪聲柴油機裝置降噪新技術研究
  17. The stability output second harmonic generation ( shg ) experiment results of single - longitudinal mode and multi - longitudinal mode with long cavity were explained reasonably with these rate equations. the high polarization of fundamental wave in the isotropic laser media nd : yag with type - i critical phase - matching lbo was studied with the rate equations including polarization of fundamental light. using the polarization function of lbo, a quartz full - wave plate was introduced into the cavity, a kind of birefringent filter by considering the combination of the polarization function of the type - i critical phase - matching doubling frequency crystal lbo and the quartz whole - wave plate was constructed

    將腔內多縱模倍頻速率方程推廣應用到準三能級藍光激光器中，分析了一個縱模、兩個縱模、多個縱模時的噪聲情況，合理地解釋了實驗中激光器單縱模運轉以及長腔多縱模運轉時穩定輸出的實驗現象，同時利用該速率方程分析了以各向同性激光晶體nd : yag為工作物質，類臨界相位匹配lbo為倍頻晶體的藍光激光器中基頻光偏振特性，合理利用類臨界相位匹配lbo倍頻晶體的偏振特性與引入的石英晶體全波片構成雙折射濾光片，通過選單頻來抑制噪聲，獲得了藍光低噪聲的穩定輸出。
  18. 3 ) for weak noise interferogram or filtered interferogram, dyadic wavelet can be used to detect fringe edges. a gvf snake model was used to link discrete edges, the linked edges were kept well accordance with fringes of phase map. 4 ) phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map

    4 ）對于低噪聲情況下或濾波后的干涉條紋圖，在基於邊緣檢測的相位解纏過程中，利用snake模型可以高效準確的實現邊緣點的連接，所連接的邊緣線與干涉條紋很好的吻合，可將連線的精度控制在三個像元。
  19. We have designed different measurement instruments according to the methods. the instrument used to measure electrode is a high precision multi - channel system constructed with a iaadc as the core and high input impedance amplifier and low input current multiplexer

    對于硫屬玻璃電極，我們設計了以高精度的adc為核心，配以高輸入阻抗低噪聲的前置放大器和低漏電流多路模擬開關的多路精密電極測量系統。
  20. The methods will not only make a key tool for noise prediction, but also play a role for noise control of the propeller in engineering project

    整個方法對船舶螺旋槳噪聲預報提供了工具，對螺旋槳的噪聲控制及低噪聲設計也有重要的工程價值。
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