摘要
提出了一种新的MIMO OFDM信道模型,该模型对于信道阶数过估计具有很强的鲁棒性,并针对该模型提出了一种基于子空间方法的盲信道估计算法.仿真结果表明在新系统模型基础上提出的算法具有收敛速度快,估计精度高的优点.
The MIMO-OFDM technique is considered as one of the promising techniques in the future wireless system.In this paper,a new MIMO-OFDM channel model that has robustness to cope with channel order over-estimation is proposed.Next a subspace based blind channel estimation algorithm for the new model is also presented.Simulation results show that the new algorithm has a faster convergence rate and better estimation performance.
出处
《应用科学学报》
CAS
CSCD
北大核心
2005年第3期221-224,共4页
Journal of Applied Sciences
