| 频域交织子空间法估计DS信号TDOA |
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| 引用本文： | 吴继礼,苟彦新,李琴,任啸天. 频域交织子空间法估计DS信号TDOA[J]. 无线电通信技术, 2006, 32(5): 59-61 |
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| 作者姓名： | 吴继礼 苟彦新 李琴 任啸天 |
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| 作者单位： | 空军工程大学电讯工程学院,陕西,西安,710077 |
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| 摘 要： | 频域超分辨率算法用于通信信号到达时间(差)(TOA/TDOA)测量时遇到2个问题:一是噪声采样呈现非白和非平稳特性;二是带限通信信号频域采样点数少,可以利用的信息量有限。针对这2个问题,提出了适合直扩信号到达时间(差)估计的频域交织子空间法,并证明交织之后得到相关矩阵的特征结构更适合于子空间法;推导出算法的可行性,最后给出仿真结果。
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| 关 键 词： | 超分辨率 TOA/TDOA 频域交织 子空间法 |
| 文章编号： | 1003-3114（2006）05-59-3 |
| 收稿时间： | 2005-12-10 |
| 修稿时间： | 2005-12-10 |
Frequency-domain-interleaving subspace algorithm for TDOA estimation of DS signal |
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| WU Ji-li,GOU Yan-xin,LI Qin,REN Xiao-tian. Frequency-domain-interleaving subspace algorithm for TDOA estimation of DS signal[J]. Radio Communications Technology, 2006, 32(5): 59-61 |
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| Authors: | WU Ji-li GOU Yan-xin LI Qin REN Xiao-tian |
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| Abstract: | Two problems emerging when the frequency-domain super-resolution algorithms is utilized in TOA/TDOA of communication signals.Firstly,samples of the noises are characterized by non-white and non-stationary,and secondly,the total number of samples is not so many as to make full use of information contained in received signal.A frequency-domain interleaving method is proposed in this paper to solve above problems,together with the feasibility of the algorithm.The last part of this paper presents simulation results. |
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| Keywords: | super-resolution TDOA frequency-domain-interleaving subspaceqsqs processing |
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