Real-time Doppler analysis of radar signals

Abstract

Pulse Doppler radar Fourier analysis usually requires bulky and complex circuits to obtain a real-time implementation. The letter suggests the feasibility of a spectral analyser by means of commercial programmable gate array devices (PGAs) using Curtis and Wickenden's 'prime radix recursive algorithm transform' (PRAT). PRAT leads to simple and regular networks, which can be easily fitted in the proposed devices and then transferred to gate arrays.