Packet‐Reduced Ranging Method with Superresolution TOA Estimation Algorithm for Chirp‐Based RTLS
Packet‐Reduced Ranging Method with Superresolution TOA Estimation Algorithm for Chirp‐Based RTLS
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DOI：
10.4218/etrij.13.0112.0678
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发表时间：
2013-06
期刊：
影响因子：
1.4
通讯作者：
Daegun Oh;Seungryeol Go;J. Chong
中科院分区：
文献类型：
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作者：
Daegun Oh;Seungryeol Go;J. Chong
提出了一种基于超分辨到达时间估计算法的线性调频真实的实时定位系统的分组缩减测距方法。已经提出了各种测距方法，例如对称双边双向测距（SDS-TWR），以使用额外的测距分组来消除由于频率偏移引起的时间漂移。我们所提出的方法可以执行鲁棒的测距对频率偏移使用只有两个测距包，同时保持几乎相同的测距精度，因为他们。为了验证我们提出的算法的有效性，我们提出的测距方法的误差性能进行了分析和比较与其他。通过在加性白色高斯噪声和多径信道中存在频率偏移的情况下的仿真，分析和验证了TWR、SDS-TWR和我们提出的TWR的总测距性能。
In this paper, a packet‐reduced ranging method using a superresolution time of arrival estimation algorithm for a chirp‐based real‐time locating system is presented. A variety of ranging methods, such as symmetric double‐sided two‐way ranging (SDS‐TWR), have been proposed to remove the time drift due to the frequency offset using extra ranging packets. Our proposed method can perform robust ranging against the frequency offset using only two ranging packets while maintaining almost the same ranging accuracy as them. To verify the effectiveness of our proposed algorithm, the error performance of our proposed ranging method is analyzed and compared with others. The total ranging performance of TWR, SDS‐TWR, and our proposed TWR are analyzed and verified through simulations in additive white Gaussian noise and multipath channels in the presence of the frequency offset.