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An ITD based automatic digital modulation recognition algorithm for broadband mobile multimedia communication system

机译:基于ITD的宽带移动多媒体通信系统自动数字调制识别算法

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Automatic modulation recognition is extremely important for the receiver design in the broadband multimedia communication system. Based on the intrinsic time-scale decomposition algorithm for feature extraction on which the instantaneous amplitude, phase and frequency is precisely defined, this paper proposed a feature selection algorithm to find the features with high distinguishing capacity and a digital modulation recognition algorithm. Simulation results show that this algorithm is of low complexity and the average recognition accuracy is higher than 94% using only three feature parameters when SNR is above 5dB.
机译:自动调制识别对于宽带多媒体通信系统中的接收机设计极为重要。基于特征提取的内在时间尺度分解算法,在该算法上精确定义了瞬时幅度,相位和频率,提出了一种特征选择算法以寻找具有较高识别能力的特征,并提出了一种数字调制识别算法。仿真结果表明,该算法具有较低的复杂度,当信噪比大于5dB时,仅使用三个特征参数,平均识别精度就可以达到94%以上。

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