A new velocity detector in ultra wide band radar

Abstract

In this paper, we provide a new approach based on Fourier series model with time varying coefficients for received signal in ultra short pulse or ultra wide band (UWB) radar using an MMSE estimator for estimating the Fourier coefficients that determine the velocity and range of a moving target without appealing to a matched filter. We demonstrate that it is impossible to determine velocity of a target in conventional matched filter detectors which are based on interleaved periodic correlation processing (IPCP). The purposed method requires only the pulse repetition interval to detect signal of interest. Simulations are presented in range and doppler plot. Also the capabilities of the new procedure for blind detection in presence of (non)-Gaussian noise are explored in the receiver operating characteristic (ROC) curves.