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      Research on UWB Beamforming Using Direct Time Delay Compensation Based on Hermite Interpolation Filter

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          Abstract

          Beamforming of Ultra Wide Band (UWB) signals is a crucial technology in UWB radar. Conventional beamforming methods have limitations in instantaneous bandwidth, scanning range, beam pattern deviation and a mainlobe distortion. Direct Time Delay (DTD) compensation is an effective way to avoid above problems. In this paper, a DTD compensation based on Hermite interpolation filters is presented to implement beamforming of UWB signals. Theoretical analysis and simulation results show that the magnitude responses and group delay of the proposed filters are better than those based on Lagrange and Radial basis methods. The demonstration of the UWB Linear-Frequency modulated (LFM) signal also shows excellent performances on the UWB beamforming of the proposed method.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 September 2013
          : 2
          : 3
          : 278-283
          Affiliations
          [1 ] School of Electronic and Optical Engineering, Nanjing University of Science and Technology
          Article
          5861ae09fd294fde8b8f2cedbe98b218
          10.3724/SP.J.1300.2013.13028
          ea588147-f7c5-4e25-8a81-b0f4b7ca5aec

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          History
          Categories
          Technology (General)
          T1-995

          Remote sensing,Electrical engineering
          Linear-Frequency Modulated (LFM) signal,Fractional delay filters,Hermite interpolation,Beamforming,UWB radar

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