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| 无扩频矩阵知识二维扩频系统的盲同步 | |
| 引用本文： | 沈莹,唐友喜. 无扩频矩阵知识二维扩频系统的盲同步[J]. 电子科技大学学报(社会科学版), 2006, 0(6) |
| 作者姓名： | 沈莹 唐友喜 |
| 作者单位： | 电子科技大学通信与信息工程学院 成都610054 |
| 基金项目： | 国家自然科学基金资助项目(60272009，60390540-3)，教育部博士点基金资助项目(20020614001) |
| 摘 要： | 针对加性白高斯噪声信道,考虑未知二维扩频矩阵的条件下,提出了一种二维扩频系统的时频同步方法。该方法利用二维扩频矩阵周期性重复的特点,先估计出频率偏差,再通过滑动暂存窗求相关矩阵最大特征值,完成信号的时间同步。计算机仿真结果验证了该方法的有效性。 |
| 关 键 词： | 二维扩频 二维扩频矩阵 盲同步 时间同步 频率同步 相关矩阵 |
Blind Synchronization of Two-Dimensional Spread Spectrum System without Knowledge of Spread Spectrum Matrix |
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| SHENG Ying,TANG You-xi. Blind Synchronization of Two-Dimensional Spread Spectrum System without Knowledge of Spread Spectrum Matrix[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2006, 0(6) | |
| Authors: | SHENG Ying TANG You-xi |
| Abstract: | In Additive White Gaussian Noise (AWGN) channel, we introduce a method for synchronization of symbol timing and frequency for two-dimensional spread spectrum system without prior knowledge of spread spectrum matrix. Based on the periodical characteristic of the two-dimensional spread spectrum matrix, the method estimates the frequency offset, and then synchronizes the symbol timing by moving the position of data-storage window to calculate the maximum eigenvalue of correlation matrix. Computer simulations demonstrate the efficiency of this method. |
| Keywords: | two dimensional spread spectrum two dimensional spread spectrum matrix blind synchronization time synchronization frequency synchronization correlation matrix |
| 本文献已被 CNKI 等数据库收录！ | |