QPSK_16QAM
代码说明：
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.)
文件列表：
featrue7\demod_aa.m
featrue7\demod_Acn.m
featrue7\demod_af.m
featrue7\demod_ap.m
featrue7\demod_dp.m
featrue7\demod_ifreq.m
featrue7\demod_iphase.m
featrue7\demod_iqII.m
featrue7\demod_Rmax.m
featrue7\demod_Rmaxf.m
featrue7\demod_xi.m
featrue7\feature_gen_learned_8db.m
featrue7\mod_rand_9.m
featrue7\新建 文本文档.txt
featrue7
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