| 数字并行接收机的反馈频域均衡方法 | |
| 党小川 ; 吴佑寿 ; 符剑 ; DANG Xiaochuan ; WU Youshou ; FU Jian | |
| 2010-06-09 ; 2010-06-09 | |
| 关键词 | 信道均衡 并行接收机 信道估计 伪随机序列 channel equalization approximate parallel receiver channel estimation pseudo-random number(PN) sequence TN851 |
| 其他题名 | Feedback frequency domain equalization for approximate parallel receiver |
| 中文摘要 | 为了适应高速宽带无线通信的需要,在一种高速数字并行接收机(APRX)结构的基础上,提出了一种使用伪随机(pseudo-random num ber,PN)序列进行反馈频域均衡的方法,通过PN序列相关估计的信道冲激响应反馈到频域均衡器来更新并行接收机频域均衡器系数,这种结构能适应高速率传输的要求,并且能有效地对抗频率选择性衰落。仿真结果表明:在多径信道下,APRX已无法工作,而提出的反馈频域均衡方法性能较好,仅与G auss ian白噪声信道下有约5 dB的性能损失,且实现简单,便于应用。; A feedback frequency domain equalization method based on an approximate parallel receiver(APRX) structure was developed to improve data throughput for wideband wireless communications.The method uses pseudo-random number sequence correlation to get the channel estimate,and then feeds the estimated channel coefficients back to update the frequency-domain equalizer coefficients.The structure not only improves high-speed transmissions,but also effectively suppresses frequency selective fading.Simulations show that APRX can not work in multipath channel environments,while that the urment feedback frequency domain equalization method works well with only 4 dB performance degradation with an additive white Gaussian noise channel. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/53868]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 党小川,吴佑寿,符剑,等. 数字并行接收机的反馈频域均衡方法[J],2010, 2010. |
| APA | 党小川,吴佑寿,符剑,DANG Xiaochuan,WU Youshou,&FU Jian.(2010).数字并行接收机的反馈频域均衡方法.. |
| MLA | 党小川,et al."数字并行接收机的反馈频域均衡方法".(2010). |
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