遥感卫星自适应脉冲型CP-OFDM

H. Akah, A. Kamel, H. El-Hennawy
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引用次数: 0

摘要

研究了自适应脉冲整形CP-OFDM在遥感卫星上应用的可行性。利用遗传算法生成一组脉冲形状,使定时偏移估计器的均方误差最小。这些脉冲形状被用来训练函数逼近神经网络。这种神经网络使得自适应脉冲整形在OFDM系统中的应用成为可能。本文给出了神经网络仿真的结果,证明了神经网络在两条射线模型通道上实现这一功能的能力。
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Adaptive pulse shaped CP-OFDM for remote sensing satellites
This paper studies the feasibility of using adaptive pulse shaping CP-OFDM in remote sensing satellites. A set of pulse shapes were generated using genetic algorithm that minimizes the mean square error of the timing offset estimator. These pulse shapes were used to train function approximation neural networks. Such neural networks make the use of adaptive pulse shaping in OFDM systems feasible. Results from neural networks simulation, which have shown the ability of neural networks to fulfill such function for a two ray model channels, are presented.
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