nonlinear amplifier 中文意思是什麼

nonlinear amplifier 解釋
非線性放大器
  1. Nonlinear study of the elliptical wave - guide fem amplifier

    放大器的非線性特性研究
  2. We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder, select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0. 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware, for example temperature controller & transporter, signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data. in order to obtain the reasonable operation conditions and operation curve, we have also done many theory analysis and experiment discussions

    通過理論和試驗探討，選用鎳鉻合金電阻絲作為加熱元件，配以陶瓷質埋入式爐膛；選用陶瓷質小尺寸扁平?圓盤均熱塊體型樣品支持器；選用0 . 5mm絲徑鎳鉻?鎳硅熱電偶（ k ）作為測溫元件；熱電偶對稱安置在樣品支持器容器的中部；選用硅酸鋁耐火纖維作保溫材料；合理選用和設計了溫度控制器、溫度變送器、信號放大電路等硬體；採用升溫曲線來控制爐膛供熱過程；採用最小二乘法非線性回歸與分段函數相結合的曲線模擬方法，進行圖形處理。
  3. Nonlinear analysis and linearization technique of the rf power amplifier

    射頻功放的非線性分析與線性化技術
  4. Since the envelope of modulated signal fluctuates, these methods generate unwanted intermodulation distortion ( imd ) products in a nonlinear radio frequency ( rf ) power amplifier ( pa ). so it is necessary to use linearization technique to reduce the adjacent channel interference ( aci )

    但包絡變化的調制信號經過非線性射頻功放后會產生交調分量，因此必須採用線性化技術來減少由此產生的鄰道干擾。
  5. Feedforward is generally known as the best performing linearization technique for its advantages, such as broadband, stability, etc. this paper introduces the theories of power amplifier nonlinear characters and feedforward technique. according to the rf specifications in 3gpp for wcdma transmitter power amplifier, an adaptive feedforward amplifier system is completed including eda simulation, circuits layout and main mechanical structure design

    本文根據3gpp對wcdma發射機功率放大器的射頻指標要求，在對功率放大器的非線性特性和前饋技術的特性進行詳細理論分析的基礎上，結合eda模擬工具，設計了基於自適應前饋的功放系統，並完成了系統的調試和測試。
  6. Krf laser amplifier has many advantages for its short wavelength, less nonlinear effects and high efficiency in amplifying ultra short pulse

    Krf準分子激光器在放大超短脈沖激光時與固體激光器相比有許多獨特的優勢。
  7. The predistortion, which aims at compensating for the nonlinear distortion caused by the power amplifier, has a good performance in eliminating the nonlinear distortion of am / am & am / pm, improving the aci and spectrum efficiency

    預失真技術是針對射頻功率放大器非線性而提出的一種補償技術，可以有效消除由非線性造成的傳輸信號的幅度和相位失真，降低信號鄰道干擾（ aci ） ，提高頻譜利用效率。
  8. The actively and passive mode - locked fiber ring laser and two types of photonic switching, slalom ( semiconductor laser amplifier loop mirror ) and uni ( ultrafast nonlinear interferometer ) were developed. this thesis presented the principle and the requirements for the optical of frequency - shift sampling module under common conditions

    研製了作為光取樣脈沖源的主動鎖模和被動鎖模光纖激光器；半導體光放大器環鏡及超高速非線性干涉儀的光子開關，並進行了頻差法光取樣、異步光取樣及基於時分光取樣的光子模數轉換的實驗研究。
  9. A resolution method in software is applied to calibrate zero point and full scale of the circuit. software approach to nonlinear correction for sensor and circuit is presented. therefore system error is eliminated, and measurement accuracy of temperature is improved. the signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers tlc2254 with high input impedance and low drift

    採用橋路和單運放差動放大電路對溫度傳感器信號檢測放大，軟體校正溫度傳感器和測量電路的非線性，軟體校準測量電路的零點和滿度，消除測量電路的系統誤差，提高補償溫度的測量精度；採用高阻、低漂移運放tlc2254組成高阻差動放大電路用於酸度電極信號測量。
  10. This paper presents an adaptive control for the semi - active suspension using the combination of mr damper and feedback neural networks. analyzing the mr damper, a smart actuator, chapter 3 gives the design of pre - amplifier of current, which provides the external magnetic field. and it discusses the additional nonlinear stiffness resulted from the transition of mr fluid from liquid to semi - solid or solid

    在分析新型智能材料用做作動器的磁流變阻尼器特性的基礎上，本文給出阻尼器線圈的前置電流放大電路，並討論了因磁流變液體固液態之間的可逆變化而產生的懸架系附加非線性剛度。
  11. To reduce the nonlinear distortion of power amplifier, this thesis puts forward a improved technology named adaptive predistortion

    本文針對功率放大器的非線性失真提出了一種改進的自適應預失真技術。
  12. Modeling time - domain nonlinear characteristics of microwave circuits by using the neural network techniques, then analyzing the time - domain transient and steady states of a power - amplifier and in collarboration with the hp - ads

    2 ）研究了一個建立在volterra級數基礎上的一般的分析方法，包括非線性參數和交調、頻率中的譜分量之間的相互影響。
  13. Raman fiber amplifier （ rfa ） is a kind of optical amplifier that can amplify signal light directly through nonlinear interaction of high intensity pump and signal light in fiber. whereas the spectrum of raman gain coefficient of optical fiber is not flat, the gain of signal light with different wavelength induced by a single pump is rather different, when wavelength division multiplexing ( wdm ) signal light is amplified by a single pump, the gain spectrum of the wdm signal light is not flat. the flatness of the wdm signal light has important impact on the optical signal - to - noise ratio ( osnr )

    拉曼光纖放大器（ ramanfiberamplifier ，簡稱rfa ）利用高強度的泵浦光與信號光在光纖中的非線性相互作用實現信號光的直接放大，但是由於光纖的拉曼增益系數譜很不平坦，所以同一泵浦光源對不同波長信號光的增益就存在很大的差別，因此，用單泵浦光源來放大波分復用（ wavelengthdivisionmulti - plexing ，簡稱wdm ）信號光時，各信號光的增益值就有很大差異， wdm信號增益的平坦度對光信噪比（ opticalsignal - noiseratio ，簡稱osnr ）有重要影響。
  14. And then, we analyze the nonlinear properties of limiting amplifier. due to the typical nonlinear properties of limiting amplifier, we studied the method of academic analysis for microwave nonlinear circuit and the nonlinear circuit model of transistor in detail

    由於微波限幅放大器的工作是典型的非線性特性，我們研究了非線性電路的分析方法和微波晶體管的非線性模型，詳細得介紹了諧波平衡法這種重要的非線性電路分析方法。
  15. A digital base band adaptive predistortion method to compensate nonlinear distortions introduced by a high - power amplifier ( hpa ) in orthogonal frequency division multiplexing ( ofdm ) system is proposed

    摘要提出了一種用於正交頻分復用（ ofdm ）系統中補償由大功率放大器引起的非線性失真的基帶自適應預失真方法。
  16. Considering the nonlinear difference of the gain and phase characteristic in solid state power amplifier ( sspa ), a parallel but imbalanced predistorting adjuster is used and the hardware cost can be reduced

    考慮到固態功率放大器（ sspa ）幅度和相位非線性特性的差異，該系統採用幅度和相位不平衡調節的射頻預失真結構，降低了硬體成本。
  17. Secondly, we present the set of nonlinear partial differential equations that describes the wave - particle interaction, by analyzing the output power spectrum, the limit cycle and chaotic oscillation of the radiation field in the traveling wave tube ( twt ) amplifier and the magnetically insulated transmission line oscillator ( milo ) are studied numerically, respectively

    接著，在論文的第三章和第四章我們從導出了一組用於描述場和電子相互作用的非線性偏微分耦合方程組開始，利用頻譜分析法，以行波管（ twt ）放大器和磁絕緣傳輸線振蕩器（ milo ）為例，數值研究了o型器件和m型器件中場的極限環振蕩和混沌行為。
  18. 3. the effects of gain and noise figure of raman amplifier based on high nonlinear mof are theoretically studied

    3 、對基於高非線性微結構光纖的拉曼放大器進行了理論研究。
  19. Moreover, close - form expressions for the power spectral density and acpr of cdma signal passed through a nonlinear power amplifier are derived using the power series and statistical model of cdma signal. the comparison computer between algorithm simulation and practical data or experimental data derived using ads proves the validity

    同時基於cdma信號的時域數學模型和功率放大器的冪級數模型，具體推導出cdma信號的功率譜密度和acpr的數學表達式，並將其演算法模擬結果與實測結果以及ads實驗模擬結果相比較，驗證其正確性。
  20. Otherwise, an active integral chaotic measuring circuit is suggested based on the analysis of the present nonlinear circuits in this paper, which gets rid of nonlinear distortion of map function in constant - voltage mode and defect of constant - current source operating on - off state. using a general operational amplifier, high precision can also be obtained. a nth - order chaotic measuring system can be composed of its interconnection

    另外，本文在分析原有非線性電路的基礎上提出一種有源積分式混沌測量電路，它克服了恆壓式測量電路映射函數存在非線性失真、恆流式測量電路不宜工作在開關狀態的不足，利用普通的運放也獲得較好的測量精度。
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