Description: 提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。-extract information based on the instan eous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised. Platform: |
Size: 7272 |
Author:谢灵心 |
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Description: 提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。-extract information based on the instan eous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised. Platform: |
Size: 7168 |
Author:谢灵心 |
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Description: 提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。-Extraction based on instantaneous information signal of seven characteristics: zero center normalized instantaneous amplitude of the maximum power spectral density, zero-center normalized standard deviation of the instantaneous rate of absolute zero center section of non-weak signal instantaneous phase nonlinear component absolute value of standard deviation, non-zero center section of the weak signal non-linear component of the standard deviation of the instantaneous phase, zero-center non-normalized absolute value of the weak signal section of the standard deviation of the instantaneous frequency of a signal segment of the normalized power spectral density of instantaneous frequency maximum, according to the signal QPSK and 16QAM in the XI-axis projection of the different performance of the proposed characteristic parameters. Platform: |
Size: 8192 |
Author:潘涛 |
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Description: 提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。-Extraction based on instantaneous information signal of seven characteristics: zero center normalized instantaneous amplitude of the maximum power spectral density, zero-center normalized standard deviation of the instantaneous rate of absolute zero center section of non-weak signal instantaneous phase nonlinear component absolute value of standard deviation, non-zero center section of the weak signal non-linear component of the standard deviation of the instantaneous phase, zero-center non-normalized absolute value of the weak signal section of the standard deviation of the instantaneous frequency of a signal segment of the normalized power spectral density of instantaneous frequency maximum, according to the signal QPSK and 16QAM in the XI-axis projection of the different performance of the proposed characteristic parameters. Platform: |
Size: 7168 |
Author:夏英杰 |
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Description: 基于MATLAB的QPSK仿真（AWGN高斯信道和瑞利信道），包括系统框图、功率谱密度、星座图。另外还有一个当发生100个错误时的误码率，高斯信道和瑞利信道下仿真的误码率和误比特率与理论值对比。-MATLAB-based simulation of QPSK (AWGN Gaussian channel and Rayleigh channel), including system block diagram, the power spectral density, constellation diagrams. There is also a 100 error occurs when the bit error rate, and the Gaussian channel under Rayleigh channel simulation of BER and bit error rate compared with the theoretical value. Platform: |
Size: 15360 |
Author:高晗 |
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Description: QPSK功率谱密度的matlab的代码,QPSK power spectral density matlab code-QPSK power spectral density matlab code,QPSK功率谱密度的matlab的代码 Platform: |
Size: 1024 |
Author:汪镇 |
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Description: 本程序实现了一个QPSK和OQPSK的例子，分别画出了两种信号的包络起伏和功率谱密度及非线性电路的输入输出函数。-This program implements a QPSK and OQPSK example, two signals were plotted envelope fluctuations and power spectral density and nonlinear circuit input and output functions. Platform: |
Size: 2048 |
Author:天海 |
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Description: Phase shift keying (PSK) is a large class of digital modulation schemes. PSK is
widely used in the communication industry. In this chapter we study each PSK modulation
scheme in a single section where signal description, power spectral density,
modulator/demodulator block diagrams, and receiver error performance are all included.
First we present coherent binary PSK (BPSK) and its noncoherent counterpart,
differential BPSK (DBPSK), in Sections 4.1 and 4.2. Then we discuss in
Section 4.3 M-ary PSK (MPSK) and its PSD in Section 4.4. The noncoherent Platform: |
Size: 1024000 |
Author:rezzaq |
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Description: qpsk modulation. calculating ber and power spectral density-qpsk modulation. calculating ber and power spectral density Platform: |
Size: 357376 |
Author:vahid |
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Search - QPSK power spectral density