Abstract
A high-resolution estimation of velocity and range profile (HREVRP) method is studied to yield both high-resolution radial velocity and range profile of slowly moving target for pulse linear frequency modulation (LFM) ultra-wideband (UWB) radar. Two-dimensional projection discrete Fourier transform (2-DPDFT) is utilized to estimate the velocity. The range profile is then obtained by compensating its motion and spread with this velocity estimate. In addition, a range of the velocities is derived based on velocity ambiguity and corresponding phase restriction. The proposed method does not require any initial velocity estimation and focusing matrices construction. Besides, it has superior performance of velocity estimation compared with conventional techniques, especially at low signal-to-noise ratio (SNR) levels. The simulations validate the effectiveness of the method.
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