计算机科学 ›› 2023, Vol. 50 ›› Issue (11A): 230200219-5.doi: 10.11896/jsjkx.230200219
朱力1, 韩会梅1, 翟文超2
ZHU Li1, HAN Huimei1, ZHAI Wenchao2
摘要: 针对正交相移键控(Quadrature Phase Shift Keying,QPSK)接收机检测信号准确率低以及复杂度高的问题,提出了一种基于长短期记忆(Long Short-term Memory,LSTM)神经网络的QPSK智能接收机设计方案。该方案中的神经网络模型由LSTM和全连接层构成,其利用LSTM提取接收信号的时间相关性,具有较低复杂度。仿真实验结果表明,在加性高斯白噪声、同相和正交( Inphase and Quadrature,IQ)失衡、频率偏差信道因素影响下,与现有QPSK接收机相比,所提出的QPSK智能接收机显著提高了检测性能。
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