16QAM基带成形滤波器的FPGA实现  

A Baseband Shaping Filter Implemention of 16QAM with FPGA

作　　者：马娅娜[1] 杜栓义[1] 畅通[1] 陈立娜[1] 

机构地区：[1]西安电子科技大学ISN国家重点实验室,陕西西安710071

出　　处：《现代电子技术》2007年第4期11-13,共3页Modern Electronics Technique

摘　　要：根据16QAM的调制原理,提出一种采用现场可编程门阵列(FPGA)实现16QAM成形的FIR数字滤波器硬件电路的方案。该方案基于分布式算法的思想,利用FPGA丰富的查找表资源,从时域上对基带信号直接进行成形。因为所采用的成形方法运算量小、精度高,所以适用于实时系统。With the principle of 16QAM, the text puts forward one scheme which adopts FPGA to realize the hardware circuit of 16QAM taking shape FIR digital wave filter. Based on the idea of distributed arithmetic, using the rich look -up table of FPGA. ,the programme shapes to the baseband signal from the 24 -hour directly. The computational methods is small in volume and high in accuracy,so the scheme is fit for real - time systems.

关 键 词：16QAM FPGA基带信号成形 分布式算法 查找表 

分 类 号：TN911[电子电信—通信与信息系统]