| 基于自相关算法的 TOA 估计方法研究 |
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| 引用本文： | 孙超,王世练,朱江.基于自相关算法的 TOA 估计方法研究[J].微处理机,2014(4):39-43. |
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| 作者姓名： | 孙超 王世练 朱江 |
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| 作者单位： | 国防科学技术大学电子科学与工程学院,长沙410073 |
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| 摘 要： | TOA（脉冲到达时间）估计是检测和截获非合作突发通信信号的关键，在通信对抗中至关重要。在介绍基于自相关（AC）算法 TOA 估计原理的基础上，讨论了在低信噪比情况下自相关算法的门限设置问题。采用双门限方法对门限设置进行了改进，并通过计算机进行了仿真分析和验证。
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| 关 键 词： | 自相关算法 脉冲到达时间估计 门限 |
Research of TOA Estimation Based on Auto -correlation Algorithm |
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| SUN Chao,WANG Shi-lian,ZHU Jiang.Research of TOA Estimation Based on Auto -correlation Algorithm[J].Microprocessors,2014(4):39-43. |
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| Authors: | SUN Chao WANG Shi-lian ZHU Jiang |
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| Affiliation: | (School of Electronics Science and Engineering, National University Defense Technology, Changsha 410073, China) |
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| Abstract: | The estimation of time of arrival （TOA）of impulse signal is the key point for detection and interception of burst and non -cooperative communication signals,and it is very important for communication countermeasure.Based on a introduction of the AC -TOA,a detailed discussion about the threshold setting of AC -TOA in low SNR is presented,by using the method of double threshold,the improvement to the threshold setting is conducted.Finally,the performance of the algorithms is verified by computer simulation. |
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| Keywords: | Auto -correlation Algorithm TOA estimation Threshold |
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