| 二种同时估计信源位置和信号发射时间的TOA算法 |
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| 引用本文： | 王昕,王宗欣. 二种同时估计信源位置和信号发射时间的TOA算法[J]. 复旦学报(自然科学版), 2002, 41(2): 117-121 |
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| 作者姓名： | 王昕 王宗欣 |
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| 作者单位： | 复旦大学通信科学与工程系,上海,200433 |
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| 基金项目： | 国家自然科学基金资助项目 (6 0 172 0 2 1) |
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| 摘 要： | 提出了当接收端在空间随机分布时同时估计信源位置和信号发射时间的二种TOA算法。方法一为用一新变量代替定位估计中的二次项，把非线性估计转化为二步最大似然（ML）线性估计；方法二通过消去二次项，而只需一步最大似然估计。二种算法结构简单，计算量不大，具有较高的精度。
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| 关 键 词： | 信源位置 信号发射时间 TOA算法 信号到达时延 最大似然估计 时间同步 移动通信 |
| 文章编号： | 0427-7104(2002)02-0117-05 |
Two TOA-based Location Algorithms Which Can Simultaneously Estimate the Source''''s Position and the Transmitted Time |
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| WANG Xin,WANG Zong xin. Two TOA-based Location Algorithms Which Can Simultaneously Estimate the Source''''s Position and the Transmitted Time[J]. Journal of Fudan University(Natural Science), 2002, 41(2): 117-121 |
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| Authors: | WANG Xin WANG Zong xin |
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| Abstract: | Two TOA based location algorithms are proposed for the case that the receivers are randomly distributed. One of these algorithms is a two step maximum likelihood(ML) linear estimation method, while the other one is a one step ML estimation method. Both of these algorithms have the advantages as simple structure, small computation volume, and high accuracy when there are no non line of sight propagation interference. |
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| Keywords: | TOA maximun likelihood(ML) estimation time synchronization |
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