| DVB-T接收机符号同步的一种新算法 |
| |
| 引用本文： | 陈胜,邵怀宗,彭启琮.DVB-T接收机符号同步的一种新算法[J].电子工程师,2007,33(9):37-40. |
| |
| 作者姓名： | 陈胜 邵怀宗 彭启琮 |
| |
| 作者单位： | 电子科技大学通信与信息工程学院,四川省成都市,610054 |
| |
| 摘 要： | 在DVB-T(DVB(数字视频广播)-Terrestrial)系统中,传统的ML(最大似然)符号同步算法计算量大,经改进的MC(最大相关)算法计算复杂度虽降低了,但其估计性能却大大下降。为了降低计算复杂度和提高估计的性能,在ML算法的基础上,提出了一种计算复杂度较低的符号定时同步算法。仿真结果表明,在瑞利信道下,新算法的定时估计性能优于其他两种算法。
|
| 关 键 词： | DVB-T标准 接收机 正交频分复用 符号同步 |
| 修稿时间： | 2007-02-02 |
Novel Symbol-synchronization Algorithm for DVB-T Receiver |
| |
| CHEN Sheng,SHAO Huaizong,PENG Qicong.Novel Symbol-synchronization Algorithm for DVB-T Receiver[J].Electronic Engineer,2007,33(9):37-40. |
| |
| Authors: | CHEN Sheng SHAO Huaizong PENG Qicong |
| |
| Affiliation: | School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China |
| |
| Abstract: | In DVB-T(Digital Terrestrial Video Broadcasting) system,there is high calculating complexity in conventional ML(Maximum Likelihood) algorithm,although the calculating complexity had been reduced in improved MC(Maximum Correlation) algorithm,the estimation performance also had been reduced.To reduce the calculating complexity and improve the estimation performance,this paper,based on the ML algorithm,presents a novel symbol-synchronization algorithm of which calculating complexity is very low.In Rayleigh channel,the performance of the new algorithm is supper to ML and MC. |
| |
| Keywords: | Digital Terrestrial Video Broadcasting(DVB-T) receiver orthogonal frequency division multiplexing(OFDM) symbol synchronization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
