基于FPGA的基带信号发生器的设计  

Design of Baseband Signal Generator Based on FPGA

作　　者：陆成龙[1] 

机构地区：[1]中国电子科技集团公司第41研究所,安徽蚌埠233006

出　　处：《安徽电子信息职业技术学院学报》2008年第3期59-61,共3页Journal of Anhui Vocational College of Electronics & Information Technology

摘　　要：本文采用一种全数字实现基带信号的方法,避免了模拟方式因正交调制信号相位或幅度不平衡产生的边带及本振泄漏,同时可以通过软件更新来适应不同的数据速率、调制方式及滤波器特性等,具有很大的灵活性和适应能力。该方法适用于数字通信、数字电视等领域。This paper introduces a fully digital way to implement baseband signal, avoiding the sideband and the leakage of local oscillation because of analog quadrature way. At the same time, it can adapt to all kinds of data rate,modulation and filter characteristics throught software update. Therefore, it has such advantages as agility and adaptability. The method is widely used in the digital communication and the digital TV field, etc.

关 键 词：FPGA 基带信号 调制格式 基带信号成形 滤波器系数 CIC插值滤波器 

分 类 号：TN941.1[电子电信—信号与信息处理]