扩频WFRFT系统的窄带干扰抑制与最优阶数选择

2018 10th International Conference on Communication Software and Networks (ICCSN) Pub Date : 2018-07-01 DOI:10.1109/ICCSN.2018.8488238

Yuan Liang, Hang Hu, Lei Ni, Xinyu Da, Ruiyang Xu, Dong Zhai

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引用次数: 1

摘要

提出了一种基于加权分数阶傅立叶变换(WFRFT)的扩频系统，用于加性高斯白噪声和窄带干扰的信道。推导了伪噪声(PN)序列与NBI (CPI)之间的互相关系数和系统误码率(BER)。我们证明了通过最小化CPI可以获得最佳的WFRFT顺序以获得最佳的误码率性能。数值结果表明，在不同的分布状态下，最优WFRFT顺序可以减小NBI的不利影响。

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Narrowband Interference Suppression in a Spreading WFRFT System and Optimal Order Selection

A spreading system based on weighted fractional Fourier transform (WFRFT) is proposed over the channel with additive white Gaussian noise (AWGN) and narrowband interference (NBI). The cross-correlation coefficient between pseudo-noise (PN) sequence and NBI (CPI) and the proposed system's bit error rate (BER) are deduced. We proved that the optimal WFRFT order can be obtained to achieve the best BER performance through minimization of CPI. Numerical results show that the optimal WFRFT order can reduce the adverse effect caused by NBI in different distribution states.

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2018 10th International Conference on Communication Software and Networks (ICCSN)

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