| 低信噪比下的比特同步设计 |
| |
| 引用本文： | 刘丽哲.低信噪比下的比特同步设计[J].无线电通信技术,2009,35(2):15-17. |
| |
| 作者姓名： | 刘丽哲 |
| |
| 作者单位： | 中国电子科技集团第五十四研究所,河北,石家庄,050081 |
| |
| 摘 要： | 比特同步性能设计未有可直接引用的公式且其公式推导繁难,故而工程设计常停留在工程经验层面。针对此问题,以平方律检波比特同步设计为例,在高斯白噪声信道条件下,分析了其功率谱密度,推导了其输出信噪比表达式,总结了影响比特同步性能改善的因素,并在分析结果基础之上,给出了低信噪比下的比特同步设计方法,这对工程设计有着重要的指导意义。
|
| 关 键 词： | 比特同步 平方律 功率谱密度 低信噪比 |
Design of Bit Synchronization at Low SNR |
| |
| LIU Li-zhe.Design of Bit Synchronization at Low SNR[J].Radio Communications Technology,2009,35(2):15-17. |
| |
| Authors: | LIU Li-zhe |
| |
| Affiliation: | LIU Li-zhe (The 54 th Research Institute of CETC, Shijiazhuang Hebei 050081, China) |
| |
| Abstract: | There is no quick reference to bit synchronization performance design which is complex to deduce, so, project designs are usually based on project experiences. Aiming at this question, the power spectral density is analyzed under the channel condition of Gauss white noise, and the improvement of bit synchronization performance is summarized with the design of square-law detection bit synchronization as an example. Based on the analyzed results, the method of bit synchronization design is proposed under the condition of low SNR, which has great significance to project design. |
| |
| Keywords: | bit synchronization square-law power spectral density low SNR |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
