基于Mathematica的卷积计算  

Mathematica-based Computation of Convolution

作　　者：李春然[1] 

机构地区：[1]渤海大学物理系,辽宁锦州121000

出　　处：《现代电子技术》2010年第19期81-82,86,共3页Modern Electronics Technique

基　　金：辽宁省高等教育教学改革研究A类项目(2010-2011)(辽教发[2009]141号)

摘　　要：介绍了用Mathematica计算连续信号卷积和离散信号卷积和的方法。所提出的方法可得到连续信号卷积的精确解析解,而非用Matlab得到的近似解。对于离散信号,无论是有限长序列还是无限长序列的卷积和均可求解。与传统计算方法相比,该方法避开了繁琐的做图或积分求和过程,使计算更简便、快速。The method to compute the convolution of continuous signals and the convolution sum of discrete signals by using Mathematica is introduced. The precise analytical solutions rather than approximate solutions gained by Matlab are obtained by the method mentioned above. As for the discrete signals, the convolution sum of both finite and infinite sequences can be solved. In comparison with the traditional computation, this method avoids the complicated procedures such as drawing or integral summations, and makes the computation more convenient and swift.

关 键 词：MATHEMATICA MATLAB 延续信号卷积 离散信号卷积和 

分 类 号：TN911.6[电子电信—通信与信息系统]