| 基于周期谱相关的扩频信号时差估计 |
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| 引用本文： | 解家宝,武传华,路后兵.基于周期谱相关的扩频信号时差估计[J].航天电子对抗,2008,24(5):55-58. |
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| 作者姓名： | 解家宝 武传华 路后兵 |
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| 作者单位： | 解放军电子工程学院,安徽,合肥,230037 |
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| 摘 要： | 周期谱相关时差估计法具有较强的抑制噪声和干扰的能力,适应于低信噪比的情况,但其抗噪声和干扰能力完全在于循环频率的选择.提出了运用周期谱特性选择扩频信号循环频率的方法,大大降低了谱相关时差估计算法的计算量.仿真结果表明,该方法是切实可行的.
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| 关 键 词： | 周期谱相关 扩频信号 时差估计 |
TDOA estimation of the spread spectrum communication signals based on cycle spectral correlation |
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| Xie Jiabao,Wu Chuanhua,Lu Houbing.TDOA estimation of the spread spectrum communication signals based on cycle spectral correlation[J].Aerospace Electronic Warfare,2008,24(5):55-58. |
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| Authors: | Xie Jiabao Wu Chuanhua Lu Houbing |
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| Institution: | Xie Jiabao,Wu Chuanhua,Lu Houbing (Electronic Engineering Institution of PLA,Hefei 230037,Anhui,China) |
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| Abstract: | The method of time difference of arrival(TDOA) estimation based on cycle spectral correlation is more robust against noise interference than the conventional generalized cross correlation methods,which can work in low SNR environment.The ability lies on the cycle spectrum chosen.The method of chosing cycle spectrum based on cycle spectral correlation is introduced,which reduces calculation load.The simulation results indicate that this method is feasible. |
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| Keywords: | cycle spectral correlation spread spectrum communication signals TDOA estimation |
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