| 不等长分组的正交频分复用系统及信道盲辨识算法 |
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| 引用本文： | 黄学军,毕厚杰,余松煜.不等长分组的正交频分复用系统及信道盲辨识算法[J].上海交通大学学报,2003,37(6):829-831. |
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| 作者姓名： | 黄学军 毕厚杰 余松煜 |
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| 作者单位： | 上海交通大学,图像通信与信息处理研究所,上海,200030 |
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| 摘 要： | 提出了一种采用不等长分组的正交频分复用(OFDM)系统。该系统通过将相邻的OFDM分组编码成不同的长度，可在接收信号序列中引入周期平稳性，从而实现信道的盲辨识。由于采用这种方法无需加入冗余信息，故进一步提高了系统的传输效率。仿真结果表明，本方法是可靠的。
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| 关 键 词： | 正交频分复用 盲辨识 周期平稳性 |
| 文章编号： | 1006-2467(2003)06-0829-03 |
| 修稿时间： | 2002年7月14日 |
A New Orthogonal Frequency Division Multiplexing (OFDM) System with Unequal-Size Blocks and Its Blind Channel Identification Algorithms |
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| HUANG Xue jun,BI Hou jie,YU Song yu.A New Orthogonal Frequency Division Multiplexing (OFDM) System with Unequal-Size Blocks and Its Blind Channel Identification Algorithms[J].Journal of Shanghai Jiaotong University,2003,37(6):829-831. |
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| Authors: | HUANG Xue jun BI Hou jie YU Song yu |
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| Abstract: | By precoding the successive orthogonal frequency division multiplexing (OFDM) blocks with unequal sizes, a cyclostationarity is introduced in the received signals, so the channel can be identified blindly. By this way, no redundant signals are added, and the bandwidth efficiency of OFDM system is further increased. The simulation results show its effectiveness. |
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| Keywords: | orthogonal frequency division multiplexing (OFDM) blind identification cyclostationarity |
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