Efficient Integration of Magnetic Positioning and Stable Communications
Efficient Integration of Magnetic Positioning and Stable Communications
复制标题
磁力定位与稳定通信的高效融合
DOI：
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发表时间：
2018
影响因子：
1.2
通讯作者：
Chao Zhang
中科院分区：
文献类型：
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作者：
Hong Wu;Xuefeng Jiang;Pengfei Xu;Chao Zhang
提出了一种利用磁感应信号实现高精度定位和稳定通信的集成方法。将同相分量和正交分量分别分配给定位和通信。导频信号用于识别同相分量和正交分量，这会导致载波相位同步误差造成两个分量的相互干扰。仿真和实验结果表明，该方案的互相干扰和信噪比损失是可以接受的，即干扰较弱，当载波相位同步误差小于$5CIRC时，信噪比损失约为1.6%。例如，当距离在150米左右时，定位的均方根误差小于1.5米，通信传输速率约为3000比特/秒，这对于磁导航以及地下或水下的压缩语音和消息通信等应用是实用的。
A promising integration method for high-precision positioning and stable communications by utilizing magnetic induction signals is proposed. In-phase and quadrature components are assigned to the positioning and communications, respectively. A pilot signal is used for identification of the in-phase and quadrature components, which leads to mutual interference of the two components caused by carrier phase synchronization error. Simulation and experiment confirm that the mutual interference and signal-to-noise ratio (SNR) loss are acceptable in our proposed scheme, i.e., the interference is weak and the SNR loss is about 1.6 dB as the carrier phase synchronization error less than ${5^circ }$. For instance, it is demonstrated that the root-mean-square error of positioning is less than 1.5 m and the transmission rate of communications is about 3000 bits per second when the distance is about 150 m, which is practical for applications such as the magnetic navigation, as well as compressed voice and message communications underground or underwater.