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   数字化解调 的翻译结果: 查询用时:0.022秒
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数字化解调     
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  digital demodulation
     Research of digital demodulation for 2DPSK in software radio
     软件无线电中2DPSK数字化解调算法的研究
短句来源
     Research on Digital Demodulation of PCM/DPSK Telemetry Signal
     PCM/DPSK遥测信号数字化解调技术研究
短句来源
     3. Realization of MSK modulated signals' digital demodulation.
     3.MSK调制信号的数字化解调的实现。
短句来源
     This paper presents a new digital demodulation method of the FSK signal,which is based on the Shifted Discrete Fourier Transforms.
     提出了一种新的FSK调制信号数字化解调的方法,该方法以移位离散傅立叶变换SDFT(Shifted Discrete Fourier Transforms)为基础。
短句来源
     A digital demodulation scheme of TDM fiber-optic hydrophone array is put forward based on DSP and CPLD;
     提出了基于DSP和CPLD的光纤水听器时分(TDM)阵列的数字化解调方案;
短句来源
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  digitized demodulation
     The method is simple in algorithm and needs less computation. And the method is especially applicable to the digitized demodulation of multi-channel signals.
     其特点是算法简单,计算量较小,特别适用于多路QPSK信号的数字化解调;
短句来源
     In this paper,we study on Multi-carrier Demodulation(MCD)of FDMA/QPSK signals,which is a very important on-board signal processing technique. The MCD includes such algorithms as FDMA signal FFT demultiplexing algorithm,fully digitized demodulation algorithm of FDMA/QPSK signals,and bit-timing synchronization in MCD,etc.
     研究了星上多路信号即FDMA/QPSK信号的多载波技术,这是一种重要的星上处理技术,它包括频分多路信号的FFT分路算法、频偏估计、多路QPSK信号的全数字化解调算法和解调算法中的位定时恢复方法等。
短句来源
  digitalized demodulation
     In order to meet the requirement of general waveform programming in software defined radio,digitalized demodulation of FM waveform was studied. The CORDIC(coordinate rotation digital computer) algorithm for calculating phase of FM baseband analytic signal was analyzed.
     为了满足软件无线电电台中通用波形库的设计要求,研究了软件无线电中FM波形的数字化解调,分析了用坐标旋转数字计算机(CORD IC)算法,计算FM基带解析信号相位的过程。
短句来源
  digital demodulate
     In this paper,consulting the idea of Software Radio and using the three important theoriesof maximum mean power estimate(MMPE) for symbol synchronization algorithm,the Kalman decision-feedback equalization (DFE) algorithm and the decision-feedback phase lock loop (DFPLL) algorithm,a kind of low frequency digital demodulate scheme over high-frequency (HF) radio channels for 8PSK signial is realized.
     本文利用软件无线电的思想,提出了一种HF信道8PSK信号低频采样数字化解调方案。 讨论了实现该方案的三个核心算法:最大平均功率定时同步算法、判决反馈式锁相环和卡尔曼均衡器,分析它们的基本理论,并进行了性能测试。
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      digital demodulation
    The system described is modular, employs active electrodes to maximise CMRR (common mode rejection ratio) and was designed to employ digitally generated current injection and digital demodulation of the acquired signals.
          
    The imbalance errors in the analog and digital demodulation schemes are highlighted.
          
    ASK digital demodulation scheme for noise immune infrared data communication
          
    A high performance architecture is proposed for the ASK (Amplitude Shift Keying) digital demodulation, which is dedicated to the noise immune wireless infrared data communication.
          
    It also interfaces with the IFFT Processor and performs the digital demodulation.
          
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    In fully digitized QPSK (Quadrature phase shift Keying) demodulator,sometimes th ere exists a rather large freque ncy-offset so that the demodulator can not work normally.This paper proposes a novel algorithm to solve this challenging problem.Instead of estimating frequenc y-offset directly,we estimate the period of some new sequence,resulting in a go od statistic for frequency-offset estimating.The algorithm is less expensive co mputationally in rectifying frequency-offset,and has been applied to a multi-c...

    In fully digitized QPSK (Quadrature phase shift Keying) demodulator,sometimes th ere exists a rather large freque ncy-offset so that the demodulator can not work normally.This paper proposes a novel algorithm to solve this challenging problem.Instead of estimating frequenc y-offset directly,we estimate the period of some new sequence,resulting in a go od statistic for frequency-offset estimating.The algorithm is less expensive co mputationally in rectifying frequency-offset,and has been applied to a multi-c hannel QPSK demodulation system,which is implemented with a single DSP(Digital s ignal processing) of TMS320C6201.

    在全数字化QPSK解调器中 ,有时存在着相当大的相对载波频偏 ,导致接收机不能正常工作 .本文提出了一种新的算法 ,该算法将对频偏的直接估计转换成对一个新序列的周期进行估计 ,达到对大频偏进行有效估计并矫正的目的 ,解决了这一难题 .此算法计算量较小 ,统计特性好 ,已在用单片DSPTMS32 0C6 2 0 1实现的多路QPSK信号的数字化解调系统中得到应用

    A digital demodulation method of the FSK Signal is presented when its frequency parameters are unknown. The algorithms for the multi frqeuency estimation, DFT digital filters and the code detection are given respectively in this paper. Its block diagram with the parallel high speed DSP TMS320C25 is presented. The realization methods for software and hardware have been discussed, with a typical example of 8FSK given.

    提出了一种在未知信号频率条件下的FSK信号数字化解调方法 .介绍了多频点估计、多通道数字DFT跟踪滤波以及码元检测方法 .给出了基于多片高速数字信号处理器件TMS32 0C2 5实现数字化解调的原理框图 ,讨论了软硬件的实现方法 ,并给出了对 8FSK信号的测试结果 .

    This paper presents a new digital demodulation method of the FSK Signal, which is based on the Short Time Discrete Fourier Transform. The FSK signal is discussed in the time frequency plane, and the statistical methods are used to evaluate its frequency and code width. A typical example about demodulation of 8FSK is given, and the influence of different windows is discussed, and the simulative results of this demodulation method under different signal to noise ratios (SNR) are presented finally.

    提出了一种新的FSK信号数字化解调的方法 ,该方法基于离散短时傅里叶变换 ,在时频域中对FSK信号进行分析 ,利用统计方法估计信号的频率和码元宽度 .文中给出了一个对 8FSK信号进行数字化解调的仿真结果 ,讨论了各种窗函数对解调性能的影响 ,并给出了不同信噪比下的仿真结果

     
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