熱噪聲 的英文怎麼說

中文拼音 [rèzàoshēng]
熱噪聲 英文
johnson noise
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  1. As the range increases thermal noise tends to take over as the major source of inaccuracy.

    當射程增大時，熱噪聲將成為一個主要的誤差源。
  2. Johnson noise is purely an effect of resistance

    熱噪聲純粹是電阻的效應。
  3. Johnson noise voltage

    熱噪聲電壓
  4. The johnson noise of complex impedances consists only of the johnson noise of the resistive part of the impedance, so pure capacitance or inductance does not have johnson noise, even though it has an impedance

    復阻抗的熱噪聲僅僅是電阻部分的熱噪聲，因此理想的電容器或電感器雖然有阻抗，但並沒有熱噪聲。
  5. A final " imperfection " of resistors is an inconvenience but cannot properly be regarded as an imperfection as it is a fundamental property of all resistors : thermal or johnson noise

    關于電阻的非理想特性，最後一項內容是熱噪聲，也稱為約翰遜噪聲。其實這並不能稱為完全意義上的非理想特性，它是電阻的固有性質，任何電阻器都不例外。
  6. The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble

    系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。
  7. There must be a threshold of thermal noise.

    必有一個熱噪聲的門限值。
  8. That is the reason that all over the countries have never stopped researching for mask jamming technology of radar. at present, the mask jamming source mainly comes from the thermal noise and zener avalanche noise of semiconductor devices. but the noise ’ s quality isn ’ t stabile because of the differences of semiconductor devices each other and the changes of exterior conditions

    目前採用的遮蓋性干擾的噪聲源主要來自半導體器件本身的熱噪聲或齊納雪崩噪聲，但各器件本身的不一致性和外界條件變化等因素使噪聲輸出質量不穩定;同時由於此類信號不能再生，不利於科學研究。
  9. The experimental results showed that the substrate of pyroelectric sensor could significantly affect the detectivity. the porous silicon dioxide and pet plastic film substrate could effectively decrease the thermal conduction and the thermal fluctuation noise of the pyroelectric element, increase the voltage responsivity and the detectivity obviously

    結果表明，多孔氧化硅和pet塑料可有效降低熱釋電元件的對外熱傳導，明顯提高傳感器的電壓響應率和降低熱釋電元件的熱噪聲。
  10. First in this paper, we review the development of radar signal processing and cfar detector, analyse the structure and principle of the signal processor, ca - cfar and os - cfar detectors. then, in view of the characteristic of prc cw signal, analyses the statistics characteristic of scattering bodies, models of target, noise, ground - clutter and weather - clutter are made. these lay a theoretic foundation of signal processing and cfar detector

    然後，本文針對x波段偽隨機m序列相位編碼連續波信號體制，分析了各種散射體的統計特性，對雷達目標及檢測背景噪聲（熱噪聲、地雜波和氣象雜波）進行了理論分析和統計檢驗，建立了目標及檢測背景的目標模型，確立了信號處理和恆虛警檢測的理論基礎。
  11. This paper makes a detailed discussion on the following key problems of high - frequency vibrating screen as bearing heating, high pitch of noise, and breaking of main bolts and it also provides the reason why those problems happen, improvement plan, and application

    摘要就高頻振動篩在使用中軸承發熱、噪聲過高、主螺栓斷裂等關鍵技術問題，詳細論述了問題的產生原因，改進方案和使用效果。
  12. With the method of integral within ordered product of operators, we obtain the analytical expression of quantum information counterpart of mutual information. the coherent information, as a function of input thermal state power and thermal noise channel power, we discuss the upper and lower bound for quantum gaussian channel introduced by holevo - werner and by quantum codes

    用正規乘積內的算符積分技術求出了互信息的量子對應物? ?相干信息用輸入熱噪聲信號功率和通道熱噪聲功率表示的公式。討論了由holevo和werner引入的量子高斯通道量子容量的上界及由量子編碼所確定的下界。
  13. A new if simulation signal digital model was developed, which has the ability to simulate the ocean return wave noise and the instrument thermal noise. by this simulation data, smle is successfully tested, and the rf ocean return wave simulator also worked correctly. it is difficult for altimeter to realize closed loop internal calibration with a large time - bandwidth product

    （ 4 ）提出了雷達高度計海面回波中頻模擬信號的數字模型，該模型具有模擬高度計海面回波噪聲和儀器熱噪聲的功能；基於該模型的軟體模擬器成功的對高度計跟蹤器進行了驗證；同時，該模型模擬的信號應用於雷達高度計射頻回波模擬器也獲得了成功。
  14. After ameliorate the hardware of the spectrometer, there are many kinds of noise added to the system inevitably. they are hot - noise and disperse - noise in electron circuitry and the wavelength excursion due to the grating turning

    光譜儀經過硬體改造以後，不可避免地將電子方面的噪聲帶入到系統中，其中主要包括電子線路中的熱噪聲和散粒噪聲（白噪聲）以及光柵轉動過程中的機械誤差引起的波長漂移。
  15. We study holevo capacity of a single mode squeezed channel, derive the main formulus for computing the capacity. the result suggests that in many case the capacity is achived when the input is a squeezed state

    對熱噪聲通道，表明了容量在輸入信號為熱噪聲信號時達到，壓縮態無助於達到通道容量；而對于壓縮通道，容量一般在輸入壓縮態時達到。
  16. Most of the lectures on nbi suppression assume that the spread spectrum signal and the background noise are white. this assumption cannot stand up in digitalized receiver because of the if oversampling and digital low pass filtering in digitalized receiver. the code - aided optimal filtering is studied extensively in the circumstance of oversampling and colored background noise

    以往的擴頻抗干擾文獻多將擴頻信號和背景熱噪聲假設為白噪聲，由於在數字正交解擴解調中採用過采樣和數字低通濾波，這一假設在數字化擴頻接收機中並不成立。
  17. Chapter 3 investigates the capacity improvement in cdma multi - cellular system with base - station smart antenna. we consider the effects of multipath interference, thermal noise, path loss, processing gain and voice activity factor. and introduces multiuser detection combined with smart antenna

    考慮了多徑干擾、熱噪聲、路徑損耗、處理增益和語音激活因子的影響；並介紹了與智能天線技術相結合的多用戶檢測技術。
  18. Thermal noise thermometer

    熱噪聲溫度計
  19. The main content of this paper can be concluded as followings : 1 ） this paper investigates the influence of the main parameters measure error to the at - insar speed measurement accuracy, and analyzes the influence of the interferometric phase error and the incidence angle error caused by thermal noise to the imaging precision

    本文的主要內容可歸結到以下幾個方面： 1 ） 、對引起測速精度變化的主要參數：干涉相位、基線和入射角的誤差對測速精度的影響進行了研究，並對熱噪聲引起的干涉相位誤差和測角誤差對測速精度的影響進行了分析。
  20. Brillouin, leon. science and information theory. 2nd ed. academic press inc, london, england, 1962. topics include brownian motion, thermal noise, information theory, entropy, and the author ' s personal view of maxwell ' s demon

    科學和信息理論，第2版，學院出版社英國倫敦1962年出版。其中包括有布朗運動，熱噪聲，信息理論，熵和作者本身對麥克斯韋妖的看法。
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