摘要
本文研究离散Hartley变换在OFDM系统中的应用,提出一种基于离散Hartley变换的OFDM实现模型。分析了新模型在加性高斯白噪声信道下的传输性能和算法复杂度。新模型与基于离散傅立叶变换(DFT)的OFDM系统具有相同的传输性能,但计算复杂度降低,时效性提高,且调制与解调算法一致。
The application of discrete Hartley transform in OFDM is studied. A discrete Hartley transform based orthogonal frequency division multiplexing system model is proposed. The transmission performance on AWGN channel and computational complexity of the new model are analyzed. The new model performs as good as the conventional DFT based system on AWGN channel, but its computational complexity and time cost are much lower. Both the modulation and demodulation can be implemented with the same algorithm.
出处
《电路与系统学报》
CSCD
北大核心
2005年第1期15-19,共5页
Journal of Circuits and Systems
基金
国家自然科学基金重大项目(90104018)
国家自然科学基金资助项目(60172052)
关键词
正交频分复用
离散Hartley变换
离散傅立叶变换
orthogonal frequency division multiplexing
discrete Hartley transform
discrete Fourier transform
