| 递归时频重排算法在跳频信号参数估计中的应用 |
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| 引用本文： | 蔡丽霞. 递归时频重排算法在跳频信号参数估计中的应用[J]. 计算机系统应用, 2014, 23(1): 154-157,123 |
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| 作者姓名： | 蔡丽霞 |
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| 作者单位： | 河南工业职业技术学院, 南阳 473000 |
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| 摘 要： | 为了有效分析跳频信号并估计其参数, 引入一种短时傅里叶变换的快速算法, 为改善其时频聚集性, 将该算法推广到重排域。该算法降低了参数估计的算法复杂度。最后,在跳频系统中对该算法的性能进行了仿真与分析。
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| 关 键 词： | 跳频 傅里叶变换 短时傅里叶变换 时频重排 |
| 收稿时间： | 2013-06-19 |
| 修稿时间： | 2013-07-29 |
Application of Recursive Time-Frequency Reassignment Method to Frequency Hopping Signals Analysis |
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| CAI Li-Xia. Application of Recursive Time-Frequency Reassignment Method to Frequency Hopping Signals Analysis[J]. Computer Systems& Applications, 2014, 23(1): 154-157,123 |
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| Authors: | CAI Li-Xia |
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| Affiliation: | Henan Polytechnic Institute, Nanyang 473000, China |
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| Abstract: | To make an analysis and estimate the parameters of frequency-hopping signal, a fast algorithm to realize short time fourier transform is introduced. In order to improve the time-frequency concentration, the proposed algorithm is extended with the method known as time-frequency reassignment. The algorithm reduces complexity of parameter estimation. Finally, the algorithm performance is simulated and analyzed. |
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| Keywords: | frequency hopping fourier transform short time fourier transform time-frequency reassignment |
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