上海交通大学学报(自然版) ›› 2014, Vol. 48 ›› Issue (10): 1415-1420.
康家方a,王红星a,b,钟佩琳a,陈昭男a,胡昊a
收稿日期:
2013-10-30
出版日期:
2014-10-28
发布日期:
2014-10-28
基金资助:
国家自然科学基金资助项目(61179018),山东省"泰山学者"建设工程专项经费项目(ts20081130)
KANG Jiafanga,WANG Hongxinga,b,ZHONG Peilina,CHEN Zhaonana,HU Haoa
Received:
2013-10-30
Online:
2014-10-28
Published:
2014-10-28
摘要:
摘要: 针对基于椭圆球面波函数(PSWF)的非正弦时域正交调制系统在硬件实现时遇到的PSWF实时产生困难、系统实现复杂度高等问题,从PSWF的傅里叶级数展开形式出发,分析研究了其正余弦展开形式及展开项系数与脉冲信号能量和脉冲间正交性的关系.在此基础上,理论推导了基于离散傅里叶逆变换(IDFT)的非正弦时域正交调制方法和基于离散傅里叶变换(DFT)的解调方法,并给出了基于快速傅里叶(逆)变换(FFT&IFFT)的调制和解调方法.该方法将成熟的傅里叶变换技术运用到非正弦系统的实现上,建立了非正弦系统实现与离散傅里叶(逆)变换之间的联系,为非正弦系统的研究提供了一种新思路.
中图分类号:
康家方a,王红星a,b,钟佩琳a,陈昭男a,胡昊a. 基于傅里叶变换的非正弦时域正交调制系统实现方法[J]. 上海交通大学学报(自然版), 2014, 48(10): 1415-1420.
KANG Jiafanga,WANG Hongxinga,b,ZHONG Peilina,CHEN Zhaonana,HU Haoa. A Novel Method for Realization of NonSinusoidal Orthogonal Modulation System in Time Domain Based on Fourier Transform[J]. Journal of Shanghai Jiaotong University, 2014, 48(10): 1415-1420.
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