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Direct Localization of Multiple Stationary Narrowband Sources Based on Angle and Doppler

机译:基于角度和多普勒的多个固定窄带源直接定位

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摘要

Direct position determination (DPD) is a single-step method that directly localizes transmitters from sensor outputs without estimating intermediate parameters. With a moving array, DPDs are usually performed by implicitly using only angle information. This letter proposes a DPD algorithm for multiple stationary transmitters by exploiting location information embedded in angles and Doppler shifts. We fit all signal subspaces with the space-time steering vectors at all positions of the moving array using the weighted subspace fitting method, and then perform an alternating projection procedure to directly localize transmitters. The simulation results corroborate the good localization performance of the proposed algorithm.
机译:直接位置确定(DPD)是一种单步方法,可直接定位传感器输出中的变送器,而无需估计中间参数。对于移动阵列,通常仅通过隐式使用角度信息来执行DPD。这封信通过利用嵌入角度和多普勒频移的位置信息,为多个固定式发射机提出了一种DPD算法。我们使用加权子空间拟合方法在运动阵列的所有位置上使用时空转向矢量拟合所有信号子空间,然后执行交替投影过程以直接定位发射机。仿真结果证实了该算法的良好定位性能。

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