| 一种可变遗忘因子的卡尔曼滤波信道跟踪 |
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| 引用本文： | 吴本卿,钱良,林成浴. 一种可变遗忘因子的卡尔曼滤波信道跟踪[J]. 信息技术, 2012, 0(6): 87-91 |
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| 作者姓名： | 吴本卿 钱良 林成浴 |
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| 作者单位： | 1. 上海交通大学电子工程系,上海,200240
2. 海军航空工程学院青岛分院,青岛,266041 |
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| 摘 要： | 在快衰落信道下,时变特性会使导频时段与数据时段的信道冲激响应存在误差,所以需要引入信道跟踪。实践证明,系统建模与实际模型存在一定偏差时,标准卡尔曼滤波的鲁棒性较差。因此,文中提出了一种可变遗忘因子的卡尔曼滤波算法。仿真表明,与标准卡尔曼滤波相比,可变遗忘因子的卡尔曼滤波信道跟踪具有更好的鲁棒性。
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| 关 键 词： | 快衰落 信道跟踪 卡尔曼滤波 遗忘因子 |
A variable forgetting factor of Kalman filter channel tracking |
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| WU Ben-qing , QIAN Liang , LIN Cheng-yu. A variable forgetting factor of Kalman filter channel tracking[J]. Information Technology, 2012, 0(6): 87-91 |
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| Authors: | WU Ben-qing QIAN Liang LIN Cheng-yu |
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| Affiliation: | 1.Department of Electronic Engineering,Shanghai Jiaotong University,Shanghai 200240,China; 2.Qingdao Branch,Naval Aeronautical Engineering Institute,Qingdao 266041,China) |
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| Abstract: | In fast fading channel,because of the time-varying characteristics,there is a deviation of the channel impulse between the pilot period and data slots,so it should be introduced into the channel tracking module.Practice has proved that the system modeling and the actual model there is a certain deviation which makes the standard Kalman filter robustness poor.Therefore,this paper proposes a variable forgetting factor Kalman filter algorithm.The simulation results show that,compared with the standard Kalman filter algorithm,the variable forgetting factor of Kalman filter channel tracking is more robustness. |
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| Keywords: | fast fading channel tracking Kalman filter forgetting factor |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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