| 摘要: |
| 提出了一种基于时频分布迭代的跳频信号参数估计新算法，利用时频平面最大值，
通过计算跳频信号与最优原子时频分布的残差逐次迭代获取匹配于跳频信号分量的时频参数
，进而实现跳频信号参数估计。理论分析和仿真结果表明，与基于匹配追踪和粒子群优化的
跳频信号参数估计相比，基于时频分布迭代的参数估计算法在保证算法精度的情况下，有效
地降低了算法的计算复杂度，为跳频信号盲接收的实时实现提供了一种新方法。 |
| 关键词: 跳频信号 参数估计 时频分布 匹配追踪 |
| DOI： |
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| 基金项目:河南省教育厅自然科学基金资助项目(2011A510021)；信阳师范学院高层次人才科研基金项目（09217） |
|
| Parameter estimation of frequency hopping signals based on time frequency distribution iteration |
| GUO Jian-tao,LIU You-an |
| () |
| Abstract: |
| A new parameter estimation algorithm for frequency hopping(FH) signal based on
time frequency(TF) distribution iteration is proposed. The TF parameters matchi
ng those components of FH signals are obtained successively by residual computat
ion of TF distribution between FH signal and the best atom using the TF plane ma
ximum values. Further, the FH parameters are estimated. Theore
tical analysis and simulation results show that this algorithm reduces the compu
tational complexity effectively under the circumstance of ensuring the estimatio
n ac
curacy and provides a new way to receive FH signal real-timely and blindly. |
| Key words: frequency hopping signal paramet
er estimation time frequency distribution matching pursuit |
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