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首页> 外文期刊>Journal of the Korean Institute of Electromagnetic Engineering and Science >Super-Resolution-Based DOA Estimation with Wide Array Distance and Extrapolation for Vital FMCW Radar
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Super-Resolution-Based DOA Estimation with Wide Array Distance and Extrapolation for Vital FMCW Radar

机译：基于超分辨率的DOA估计，具有各种阵列距离和重要的FMCW雷达外推

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摘要

This paper proposes a super-resolution-based direction-of-arrivals (DOA) estimation with wide array distance and extrapolation for vital frequency-modulated continuous-wave (FMCW) radar. Most super-resolution algorithms employ the distance between adjacent arrays of half a wavelength, i.e., ?/2. Meanwhile, in the case of narrow field of view of FMCW radar, the resolution of the angle is maintained by increasing the spacing between the arrays even if the number of arrays decreases. In order to employ these characteristics of array spacing and resolution, the proposed algorithm confirms whether or not to use the case where the distance between the adjacent arrays is greater than ?/2. In the case of an array distance >?/2, a super-resolution algorithm is performed to obtain the enhanced DOA resolution. Moreover, the proposed algorithm virtually generates data between antennae by using extrapolation in order to further improve the performance of the resolution. The simulation results show that the proposed algorithm achieves the results of root-mean-square error similar to conventional super-resolution algorithms while maintaining low complexity. In order to further verify the performance of the proposed estimation algorithm, we demonstrate its employment in practice: experiments in a chamber room and an indoor room were conducted.
机译：本文提出了一种基于超分辨率的抵达方向（DOA）估计，具有宽阵列距离和用于重要频率调制的连续波（FMCW）雷达的外推。大多数超级分辨率算法采用相邻半波长阵列之间的距离，即，Δ/ 2。同时，在FMCW雷达的窄视场的情况下，即使阵列的数量减小，也通过增加阵列之间的间隔来保持角度的分辨率。为了采用这些阵列间隔和分辨率的特征，所提出的算法确认是否使用相邻阵列之间的距离大于α/ 2的情况。在阵列距离>Δ/ 2的情况下，执行超分辨率算法以获得增强的DOA分辨率。此外，所提出的算法通过使用外推通过外推的天线之间产生数据，以进一步提高分辨率的性能。仿真结果表明，该算法实现了与传统超分辨率算法类似的根均方误差的结果，同时保持低复杂性。为了进一步验证所提出的估计算法的性能，我们在实践中展示了其就业：室内房间和室内空间的实验。

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