方波調制 的英文怎麼說

中文拼音 [fāngbōdiàozhì]
方波調制 英文
squared modulation
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  1. This paper mainly focuses on the combination of ofdm system with the software radio technology and presents ofdm transceiver scheme based on software radio platform

    本文將軟體無線電技術和ofdm多載波調制技術相結合，提出了基於軟體無線電平臺的ofdm多載波傳輸系統方案。
  2. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電視地面廣播的需求條件，技術難點和目前存在的問題，並重點分析了dvb - t系統結構流程，核心技術及系統通道特性和參數，該系統採用了cofdm （編碼正交頻分多路復用） ，大量導頻信號插入和保護間隔技術等核心技術，使之能抵抗高電平（ 0db ） ，長延時的靜態和動態多徑失真，有利於數字和模擬電視的混合傳輸，它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。
  3. Firstly, according to the detailed analysis on the mathematical model of pmsm, the principle of field oriented control ( foc ) is illustrated. spwm and svpwm are analyzed and contrasted in detail too, and the digital realization techniques based on dsp are given

    本文首先在分析永磁同步電機數學模型的基礎上，闡述了永磁同步電機矢量控制基本原理；對正弦波調制技術（ spwm ）和空間矢量調制技術（ svpwm ）兩種脈寬調制策略進行了詳細的分析和對比研究，給出了基於dsp的數字化實現方法。
  4. With the support of hardware devices such as dsp chip, this arithmetic has effective application on complicated practice source coding. this paper alse applies wavelet to multicarrier modem / demodem transfer. the use of the induced wavelet package improves this arithmetic to search best wavelet package basis, and boosts up the support to multirate

    本文同時應用小波變換到多載波調制解調傳輸方面，通過推導出誘導小波包，改進最優小波包基搜索演算法，增強了對多碼率業務的支持性，在多載波傳輸系統中，是有效的提高信干比的方法。
  5. One way to construct this system base on single - carrier modulation technique

    建立該系統的一種方式是基於單載波調制技術。
  6. A novel sine - triangle modulation method based on equivalent circuit model for three - level pwm voltage source inverter

    基於等效電路模型的新型三電平逆變器載波調制方法的研究
  7. Theory analyze of base - band shaping filter is delivered and adaptive compensation of imperfections in modulators are discussed

    對方案中基帶成形濾波、調制誤差自適應補償技術進行輸入理論分析。
  8. Based on chaos critical state detection method, two approaches are used : one is that making a pretreatment on dsss signal to take out the period information of the signal. the other is that starting from the analysis of the sensitivity of duffing system to ambi - polar square wave modulated by sine signal, the

    通過兩種途徑:對信號進行預處理，提取出其中的周期信息，轉化為單頻信號檢測;從研究duffing振子對方波調制信號的敏感性出發，全面分析其中的間歇混沌現象，實現信噪比- 20db以下dsss信號的檢測。
  9. In this scheme digital demodulator is used to detect ifog ' s signal, digital phase ramp modulator is used as feedback controlling and digital filter is used to limit noise and lower the bits of a / d ? d / a converters

    閉環方案中，採用數字解調方案進行信號檢測，採用數字相位階梯波調制技術進行反饋控制，採用數字濾波、數值濾波降低噪聲和消除a / d 、 d / a轉換死區誤差。
  10. Light source and the signal processing device are placed on the shore in the optical fiber hydrophone system using phase - generated - carrier technique, which make the wet end with no electronic devices

    採用相位載波調制解調技術（ pgc ）的岸基陣光纖水聽器信號檢測方案將光源與信號處理都放在岸上，系統濕端全光纖化。
  11. According to the mechanism characteristics of the ac motor, with zero - voltage switching technology, the pdm converter mathematical models both the pwm and rectangular wave control mode are given in this paper. and the voltage and current harmonic analysis and the simulation waveforms of the output voltage, current and power are also described respectively

    根據交流電機在恆轉矩區和恆功率區的特性，結合零電壓開關技術，分別給出相應的脈寬調制控制（ pwm ）方式和方波控制方式下的高頻交流脈沖密度調制變頻器的數學模型，電壓和電流的諧波分析以及輸出電壓、電流和功率的模擬波形。
  12. Via theoretical analyzing, we can find that the step reference waveform modulation strategy is an ideal one when frequency modulation ratio is not very high

    通過理論分析，可以看出階梯波調制pwm的確是在頻率調制比不高時較好的調制方式。
  13. In chapter 3, on the basis of analyzing and comparing with some common pwm modulation methods, a step reference waveform modulation strategy is proposed

    在第三章中，在對一些常用的pwm調制方法進行分析比較的基礎上，著重介紹了階梯波調制pwm技術。
  14. Under the same restriction of a universal sdr hardware platform, the demodulation of linear modulated waveform, continuous phase ( no - linear ) modulated waveform, and multi - carrier modulated waveform, are investigated. corresponding to those three modulation schemes, bust mode mpsk, omsk, and ofdm signals are taken as the examples to implement a multi - mode sdr receiver, and results are presented

    本文在軟體無線電通用硬體平臺結構下，分析了線性調制方式、非線性連續相位調制方式和多載波調制的軟體接收機實現問題，分別以突發模式mpsk調制、 gmsk調制、 ofdm調制模式為對象，給出了具體的多模式接收實現方法和模擬結果。
  15. In the view of stochastic resonance ( sr ) and signal processing, parameter - turning sr ( psr ) theory and method is proposed and the characteristics of bistable systems are studied. the applications of psr in multi - frequency analog signal processing, digital baseband pulse - amplitude modulation signal transmission and digital carrier modulation signal transmission are investigated. this thesis has also introduced the concepts of parameter - adaptive sr and array - induced sr

    本文主要從隨機共振物理力學機理與信號處理的角度，研究了非線性雙穩態系統的數字特徵，提出了參數調節隨機共振（ psr ）理論和方法，並將這一理論應用到多頻模擬信號處理、數字基帶信號傳輸和數字載波調制信號傳輸中，引入了參數自適應隨機共振和陣列隨機共振系統的概念。
  16. ( 2 ) the properties of displacement measurement based on self - mixing interference are mathematically analyzed. first, how the external phase influences upon the output frequency, intensity, power and line - width is discussed. then, the output signal ' s properties modulated by four waves, including sine wave, square wave, triangular wave and saw tooth wave, is discussed

    （ 2 ）通過數值分析討論了自混合干涉位移測量系統的基本特性，包括外腔相位對輸出光頻、輸出強度、輸出功率、譜線寬度的影響，以及正弦波、方波、三角波、鋸齒波調制反射體位移時輸出信號的特點。
  17. The thesis tries to solve the problems in two ways : carrier wave modulation control methods and deadbeat control methods as well as some theoretic problems discussed

    本文從載波調制控制和無差拍控制兩個方面進行了嘗試，並對一些理論問題進行了一些探討。
  18. Data flow approach using qpsk modulation, forward error correction and interference with the advantage, meet international standards for data transmission related technical parameters of microwave transmission equipment

    數據流採用qpsk方式調制，具有前向糾錯及抗干擾強的優點，符合國際數據傳輸相關標準微波傳輸設備技術參數
  19. The typical control methods for apf such as triangular wave modulate, hysteresis control and timing control, etc, these methods all have some demerits

    而有源電力濾波器常用的控制方法為三角波調制、滯環控制和定時控制等常規的pwm控製法，這些方法均存在一定的不足。
  20. Pulse signal is connected by the customer. signal can be sine wave or square wave. modulation frequency can be to 1mhz few model can be to 10mhz ; inner modulation type no need signal from out side

    外調制式激光器留有專用的信號介面，由用戶接入脈沖信號，信號可以是正弦波，也可以是方波，調制頻率可到1mhz個別型號調制頻率可到10mhz 。
分享友人
分享到 Line

分享到臉書