基于数字化接收机的补偿滤波器设计  

Design of compensating filter in digital receiver

作　　者：孟飞[1] 房爽[1] 李饶辉[1] 谢良贵[1] 

机构地区：[1]中国航天科工集团第二研究院23所,北京100854

出　　处：《计算机工程与设计》2008年第18期4676-4677,4680,共3页Computer Engineering and Design

摘　　要：阐述了数字化接收机中需要设计的CIC滤波器,分析用于设计补偿滤波器的基于切比雪夫逼近准则的FIR数字滤波器设计方法,给出了根据Remez算法设计的补偿滤波器。仿真实验表明,该补偿滤波器在改善CIC滤波器固有的通带衰减问题上的有效性。The CIC filter which needs to be designed in digital receiver is discussed. The design procedure of FIR digital filter which is based on Chebyshev approximation theory and used to design compensating filter is analyzed, and the compensating filter designed according to Remez algorithm is provided. Finally the simulation results verify the validity ofthe compensating filter to improve the inherent passband attenuation of CIC filter.

关 键 词：数字化接收机 CIC滤波器 FIR数字滤波器 补偿滤波器 REMEZ算法 

分 类 号：TN911.72[电子电信—通信与信息系统]