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调制制式
相关语句
  modulation styles
     Automatic modulation recognition of basic modulation styles in software radio
     软件无线电中基本调制制式的自动识别
短句来源
     Automatic Modulation Recognition on Basic Modulation Styles in Softwareradio
     软件无线电中基本调制制式的自动识别
短句来源
     Automatic modulation recognition is an essential part in receiver design of non-cooperative communication system. A research is made in neural network recognition based on basic modulation styles (DSB,FM,PM,2ASK,2FSK,2PSK) in wavelet analysis and a computer simulation is given on communication signals in Gaussian white noise.
     自动调制识别是非合作通信系统接收机设计中的重要研究课题,讨论了基于小波分析的基本调制制式(DSB、FM、PM、2ASK、2FSK、2PSK)的神经网络识别问题,对高斯白噪声中的通信信号的自动识别进行了计算机仿真.
短句来源
     The recognition basic modulation styles(DSB,FM,PM,2ASK,2FSK and 2PSK) is discussed by using characteristic parameter and a computer simulation is made on communication signals in Gaussian hot noise.
     着重讨论了利用特征参数对几种基本调制制式(DSB、FM、PM、2ASK、2FSK、2PSK)的自动识别问题,对叠加了高斯白噪声的通信信号的自动识别进行了计算机仿真.
短句来源
  “调制制式”译为未确定词的双语例句
     (2) Studied the modulation identification problem of digital modulated signals, successfully identified 2ASK, 2FSK, 2PSK, 4ASK and 4FSK signals.
     (2)深入研究了数字调制信号的调制制式的识别问题,成功识别了2ASK、2FSK、2PSK、4ASK和4FSK五种数字调制信号。
短句来源
     Modulation classification of M-QAM signals
     M-QAM信号的调制制式识别
短句来源
     2. Algorithms of modulation and demodulation for different signals including AM, FM, M-DPSK, FSK, MSK etc. are studied and programmed as software modules.
     2.针对各种调制制式信号的特点,完成了包括AM、FM、M-DPSK、FSK、MSK等信号的软件调制解调算法。
短句来源
     The application of alterable digital modulation base on DDS
     基于DDS的可变数字调制制式的应用研究
短句来源
     With the development of digital communication technology,modulation recognition of digital signals becomes the hot spot of study. In this paper,difference algorithm is applied in modulation recognition of digital signals and a new algorithm is designed. The 2ASK,4ASK,2FSK,4FSK and 2PSK are classified successfully and implemented with computer simulation.
     随着数字通信技术的发展,数字信号调制制式的识别成为近年来的研究热点,本文将差分运算应用到数字调制制式的自动识别当中,设计了一种新的算法,能够成功识别2 A SK,4ASK,2 FSK,4F SK及2 PSK五种信号。
短句来源
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  相似匹配句对
     Modulation classification of M-QAM signals
     M-QAM信号的调制制式识别
短句来源
     Research and Implementation of Modulation Identification
     调制制式识别算法研究及实现
短句来源
     Modulation Contrast Microscopy
     调制衬比显微术
短句来源
     (2) The part for modulation signal;
     (2)调制信号源;
短句来源
     Raising Speed and Block System
     提速与闭塞制式
短句来源
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  modulation mode
Atomic force microscopy (AFM) in force modulation mode was adopted to study the cross-section surface of unidirectional CF/PAA composites and the relative stiffness of various phases, including CF, interphase and resin.
      
Experimental and theoretical studies on the self-modulation mode of generation in a high-power BWT with the electrodynamic system representing a slightly corrugated waveguide are presented.
      
Experimental observations are in good agreement with the results of simulation predicting a certain simplification of the self-modulation mode at the currents 70-90 A owing to the effect of high-frequency space charge.
      
SFM in force modulation mode has visualized different interphase thicknesses and gradients of local stiffness.
      
Furthermore, the biphasic modulation mode is probably due to diverse nucleotide-Fe(II) complexes formed in a concentration-dependent manner.
      
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In this paper we suggested the width modulation-another modulation method of Walsh function in the multiplex system. By using the "modified" Walsh function orthogonal set, we prove this method theoretically available, giving detail scheme of the circuit design and the results of preliminary test. This method is for solving the crosstalk caused by nonlearity, improving the performance of noise and dizitizing the SDM circuits.

本文提出了沃尔什函数作多路复用传输时的另一种调制制式——宽度调制。应用修改的沃尔什函数正交系的概念,从理论上证明了这种调制的可行性,且给出了电路设计及初步实验结果。提出这种方法意在解决非线性引起的交叉干扰,改善系统的抗噪声性能,且使序率分割系统的电路数字化。

With full consideration of the characteristics of PLC circuit, TXT-600 A Four-Phase Modulation MODEM using upper AF side-band has been develo-ped. This paper makes a brief description of the determination of its main to chnical specifications by calculation and the reasoning to select this type of modulation.

针对电力系统电力载波电路的特点,研制为TXT-600A型上音频复用的四相调相调制解调器,本文阐述了装置技术指标的核算和调制制式选择的依据。

This article has a review of the developments in modulation method,RF amplification system and in such multifunctions as SSB, floating carrier and AM multiplexing, in the recent 20 years at home and abroad. Simultaneously, it gives a few views on the future development direction in AM broadcast technology.

文章回顾了20年来国内外调幅广播在调制制式、射频放大系统以及包括单边带、浮动载波和调幅多工等多种功能的发展状况。同时对今后调幅广播技术发展方向发表了几点看法。

 
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