摘要
基于采样定理的椭圆球面波函数(Prolate Spheroidal Wave Functions,PSWF)脉冲重构求解算法具有适用范围广、误差可控的优点,对目前新兴的3种基于采样定理的PSWF脉冲重构求解算法即传统重构求解算法、勒让德—香农求解算法和改进的勒让德—香农算法进行了阐述和分析,并从工程实现的角度,对3种算法的时间复杂度和空间复杂度进行了比较,发现传统重构求解算法求解效率较高,而勒让德—香农求解算法更易于硬件实现。对于实际的PSWF脉冲产生过程中选用合适的算法,提供了有益指导。
The three new computation methods of reconstructing PSWF pulse,including the classical reconstructing algorithm,Legendre-Shannon method and modified Legendre-Shannon method,are explained and analyzed in this paper.Then the performance of the three methods is compared in the aspects of engineering implementation,and the applicability of the three methods is pointed out.The conclusion is helpful to the choice of computation method for the generation of PSWF pulse.
出处
《无线电通信技术》
2011年第3期47-50,共4页
Radio Communications Technology
关键词
通信
脉冲产生
椭圆球面波函数
香农采样定理
communication
pulse generation
prolate spheroidal wave functions
Shannon sampling theorem
