| 基于并行相关的实时时差估计器设计与实现 |
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| 引用本文： | 梁睿海,张晓发,袁乃昌. 基于并行相关的实时时差估计器设计与实现[J]. 电子技术应用, 2011, 37(2): 91-94 |
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| 作者姓名： | 梁睿海 张晓发 袁乃昌 |
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| 作者单位： | 国防科技大学,电子科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 从相关时差估计的基本原理出发,提出了一种并行时域相关结构,基于这种并行结构设计实现了一种简单高效的时差估计器.与传统频域相关时差估计器相比,这种时差估计器的主要优点是提高了运算效率,运算周期大为缩短,可以满足实时高精度时差估计的需求,同时结构简单,硬件资源开销小,易于设计实现.实际测试结果验证了上述结论.
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| 关 键 词： | 无源定位 到达时间差(TDOA) 互相关 并行结构 |
Design and implementation of real-time estimator of time difference of arrival based on parallel correlation |
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| Hang Ruihai,Zhang Xiaofa,Yuan Naichang. Design and implementation of real-time estimator of time difference of arrival based on parallel correlation[J]. Application of Electronic Technique, 2011, 37(2): 91-94 |
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| Authors: | Hang Ruihai Zhang Xiaofa Yuan Naichang |
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| Affiliation: | Liang Ruihai,Zhang Xiaofa,Yuan Naichang(School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | Starting from the principle of cross-correlation,we propose a parallel architecture of correlation,then design and implement a high efficient TDOA estimator based on this architecture.Compared to the traditional TDOA estimator using correlation in frequency domain,this TDOA estimator,which meets the demand of high precision and real-time estimation of TDOA,improves the operation efficiency,and greatly reduces the operation cycle.Meanwhile,it has a simple structure,low cost of hardware resources,and is easy ... |
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| Keywords: | passive location time difference of arrival(TDOA) cross-correlation parallel architecture |
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