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dpsk信号
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  “dpsk信号”译为未确定词的双语例句
     Design of 2DPSK Signal Generator
     2DPSK信号发生器的设计
短句来源
     Design and Realization of 2DPSK Signal Generator Based on FPGA
     基于FPGA的2DPSK信号产生器的设计与实现
短句来源
     Study on Method for PCM/DPSK Signal’s Software Demodulation
     PCM/DPSK信号软件解调方法研究
短句来源
     DPSK Signal Demodulation Based on NDLMS Adaptive Algorithm
     基于NDLMS算法的DPSK信号的解调
短句来源
     A New Data-aided Detector for Frequency-shifted DPSK Signals
     频率漂移下DPSK信号的一种新Data-aided检测器
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  相似匹配句对
     Design of 2DPSK Signal Generator
     2DPSK信号发生器的设计
短句来源
     DPSK Signal Demodulation Based on NDLMS Adaptive Algorithm
     基于NDLMS算法的DPSK信号的解调
短句来源
     New method to realize remote signal measure
     信号遥测方法
短句来源
     Signal transduction of ataxia-telangiectasia
     AT的信号传导
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This paper first discusses an analog demodulator with a differential decoder. From the demodulator it begins explaining a digital demodulator with the decoder for 4DPSK signal. A experimental model machine of the digital demodulator has been developed. The model machine is made of MSI/SSI except a few analog circuits. The paper analyzes the error perforniance of 4PSK system and four phase coherent demodulator with the decoder in additive, white, Gaussian noise. We have proved a known formula of code error probability...

This paper first discusses an analog demodulator with a differential decoder. From the demodulator it begins explaining a digital demodulator with the decoder for 4DPSK signal. A experimental model machine of the digital demodulator has been developed. The model machine is made of MSI/SSI except a few analog circuits. The paper analyzes the error perforniance of 4PSK system and four phase coherent demodulator with the decoder in additive, white, Gaussian noise. We have proved a known formula of code error probability of 4PSK system so as to prove a formula and a curve of code error probability of the coherent demodulator with the decoder. Experimental results obtained by our model machine are shnwn together with the theoretical results.

本文首先讨论了模拟极性比较法解调器,由此着手解释了对于4DPSK信号而言的数字式解调器。这种被称作为极性比较法数字式解调样机已制成。该实验样机在文中作了扼要叙述。除掉限幅器、滤波器和滤波器之前的电路外,该实验解调器由中小规模数字集成电路构成。为了能够估计极性比较法模拟解调器与相应的实验数字解调器的误码率性能差别,文章在可加高斯白噪声条件下,推证了四相相干检测和极性比较法检测的理论误码率。这里论证众所周知的四相相干检测误码率的目的是为了便于近一步导出4DPSK极性比较法解调器的误码率公式和曲线。实验指出,已制成的实验数字解调器实测误码率较为接近该理论误码率。

The content of This paper includes four parts: compositing of audio signal PCM coding

文中分四部分。第一部分论述了音频信号的PCM数字传输码流的形成。第二部分论述了准瞬时压扩编码技术。第三部分论述了对音频副载波的调制方法。第四部分论述了4ΦDPSK信号的解调与声音信号码的扩张方法。

In this paper,a novel multiple symbol differential detection (MSDD) scheme is proposed.The complexity increases linearly with the number of observation symbols (N) while for the optimum MSDD proposed by Divasalar the complexity increases exponentially with N.The results of the analysis and computer simulations show that the performance of new scheme appoachs to that of optimum MSDD.

本文提出一种新的DPSK信号的多码元差分检测方案,其复杂度随观察码元长度N仅呈线性上升,而Divsalar提出的最佳多码元差分检测实现复杂度随N呈指数上升[1].分析与模拟结果表明:两者性能相仿.

 
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