| 一种改进的DFT迭代的MIMO—OFDM系统信道估计算法 |
| |
| 引用本文： | 王东,赵宇,王秀红.一种改进的DFT迭代的MIMO—OFDM系统信道估计算法[J].应用科技,2009,36(3):19-22. |
| |
| 作者姓名： | 王东 赵宇 王秀红 |
| |
| 作者单位： | 1. 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001
2. 中国移动通信集团黑龙江省有限公司大兴安岭分公司,黑龙江,大兴安岭,165000 |
| |
| 摘 要： | 针对MIMO—OFDM通信系统中的非整数采样信道，提出了一种基于DFT迭代的低复杂度信道估计算法，该算法避免了复杂的矩阵求逆运算，较好地降低了高斯白噪声的影响．与最小二乘（least square，LS）估计算法相比，该算法有较大的性能改善．同时，提出的估计算法同样适用于整数采样信道，具有很好的实用价值．
|
| 关 键 词： | DFT迭代 MIMO—OFDM系统 信道估计 |
An improved channel estimation algorithm based on DFT iteration in MIMO-OFDM systems |
| |
| WANG Dong,ZHAO Yu,WANG Xiu-hong.An improved channel estimation algorithm based on DFT iteration in MIMO-OFDM systems[J].Applied Science and Technology,2009,36(3):19-22. |
| |
| Authors: | WANG Dong ZHAO Yu WANG Xiu-hong |
| |
| Institution: | WANG Dong, ZHAO Yu,WANG Xiu-hong (1.College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001,China;2.Heilongjiang Branch Daxinganling, China Mobile Communication Group Co., Ltd., Daxinganling 165000, China) |
| |
| Abstract: | In view of the non- integer sampling channel in the MIMO- OFDM eommunication systems, a low eomplexity channel estimation algorithm based on DFT iteration was proposed. The proposed algorithm can reduee the Gaussian- White noise effeet and avoid the complex matrix inversion operation. Compared with the Least Square estimation algorithm, this algorithm has improved the performanees greatly. Besides, the proposed algorithm is suitable in the integer sampling channel as welk So, the proposed algorithm has a high praetieal value. |
| |
| Keywords: | diserete Fourier transform （ DFT ） iteration MIMO- OFDM systems ehannel estimation |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
