基于FPGA的模糊自适应LS信道估计算法的实现  

Implementation of Ambiguity Adaptive LS Channel Estimation Algorithm Based on FPGA

作　　者：王彦[1] 沈攀[1] 王超[1] 

机构地区：[1]南华大学电气工程学院,湖南衡阳421001

出　　处：《光电技术应用》2013年第5期54-60,共7页Electro-Optic Technology Application

基　　金：国家自然科学基金资助项目(60775047);湖南省科技厅计划项目(2011GK3187)

摘　　要：针对GO-MC-CDMA系统非多径时延引起的模型失配偏差,提出一种改进的LS信道估计技术,能够有效地解决因忽略噪声所带来的模型失配误差,并通过自适应调节而有效地补偿模型失配误差,进一步提高其对抗噪声影响的能力。在FPGA上予以实现,并给出各部分结构框图。According to the model mismatch error caused by non-multipath time delay in GO-MC-CD-MA system, an improved LS channel estimation technology is introduced. The problem of model mismatch error from ignoring noise is solved effectively. And the error can be compensated by adaptive regulation effectively. So the anti-noise ability is enhanced. The improved LS channel algorithm is realized in field programmable gate array （FPGA） and the structure block diagrams are presented.

关 键 词：群正交分组多载波码分多址 LS信道估计 自适应 FPGA 

分 类 号：TN914.1[电子电信—通信与信息系统]