标题： 瞬时偏振测量与Zak-OTFS 显示英文标题

标题： Instantaneous Polarimetry with Zak-OTFS

摘要： 偏振测量，即在正交极化下测量环境散射响应的能力，对于提高无线通信和雷达系统性能是基本的。 在本文中，我们利用Zak-OTFS调制在单个传输帧内实现瞬时偏振测量。 我们同时通过正交极化发送一个Zak-OTFS载波波形和一个与之相互无偏的扩展载波波形。 这两个波形的相互无偏性使接收机能够从单个接收到的帧中估计散射环境的完整偏振响应。 与现有方法相比，现有方法在时间带宽积上的计算复杂度为二次方，而所提出的方法在时间带宽积上的复杂度仅为次线性。 通过数值仿真，我们展示了所提出方法的理想偏振目标检测和参数估计结果，在性能和计算复杂度方面优于可比较的基线方法。 显示英文摘要

摘要： Polarimetry, which is the ability to measure the scattering response of the environment across orthogonal polarizations, is fundamental to enhancing wireless communication and radar system performance. In this paper, we utilize the Zak-OTFS modulation to enable instantaneous polarimetry within a single transmission frame. We transmit a Zak-OTFS carrier waveform and a spread carrier waveform mutually unbiased to it simultaneously over orthogonal polarizations. The mutual unbiasedness of the two waveforms enables the receiver to estimate the full polarimetric response of the scattering environment from a single received frame. Unlike existing methods for instantaneous polarimetry with computational complexity quadratic in the time-bandwidth product, the proposed method enables instantaneous polarimetry at complexity that is only sublinear in the time-bandwidth product. Via numerical simulations, we show ideal polarimetric target detection and parameter estimation results with the proposed method, with improvements in performance and computational complexity over comparable baselines.