PSWF调制信号功率谱旁瓣抑制方法  

Power Spectral Density Reduction Method Research for PSWF Modulated Signals

作　　者：张丹[1] 郭珈[1] 王红萍[1] 

机构地区：[1]中国人民解放军91550部队

出　　处：《兵器装备工程学报》2016年第4期128-131,139,共5页Journal of Ordnance Equipment Engineering

摘　　要：多路PSWF时域正交调制信号功率谱主瓣扩展和旁瓣较高,严重影响了系统的功率利用率和频谱效率。针对这一问题,从带通滤波器的窗函数设计入手,提出了一种正交PSWF调制信号的带通滤波器设计方案,有效抑制了功率谱的旁瓣功率,提高了调制信号的带内能量聚集性。理论和仿真结果验证了该方法的有效性。Multiple PSWF modulated signals have spread PSD mainlobe and large sidelobe, which decreases power utilization and spectral efficiency of the communication system. Aimed at this problem, starting from the window function design of bandpass filter, a novel bandpass filter design scheme for modulated PSWF signals was proposed. The scheme effectively reduces the sidelobe power and increases the energy concentration of modulated singals. The theoretical and simulation results verify the effecicy of proposed method.

关 键 词：椭圆球面波函数 功率谱 带通滤波器 KAISER窗 

分 类 号：TN911.7[电子电信—通信与信息系统]