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An efficient interpolation based two-step time delay estimation method

机译:基于高效的插值的两步时间延迟估计方法

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Time delay estimation (TDE) is an important topic in multichannel signal processing, which has been widely used for global navigation satellite systems (GNSSs), wideband direction of arrival (DOA) estimation, tracking and localization. In this paper, we propose an efficient and low-complexity interpolation based two-step TDE method. The optimum time delay is obtained by interpolation using three points and grid search is not required. Computer simulations show that its performance is comparable to the Crame?r-Rao Lower Bound (CRLB) and outperforms two existing methods in terms of running time.
机译:时间延迟估计(TDE)是多通道信号处理中的一个重要主题,它已被广泛用于全局导航卫星系统(GNSSS),宽带到达方向(DOA)估计,跟踪和本地化。在本文中,我们提出了一种基于高效且低复杂性的两步TDE方法。通过使用三个点插值获得最佳时间延迟,并且不需要网格搜索。计算机模拟表明,其性能与CrAMEΔR-RAO下限(CRLB)相当,并且在运行时间方面优于两种现有方法。

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