In this paper the author has suggested the use of P-R sequences, to generate random phase characteristics of the currents fed to a phased-array antenna, together with a suitable (r, , ) gating system. A radar system built on this technique could also incorporate a correlator, without any difficulty, for better detectability of signals accompanied by noise. Key-words: P-R sequences, phased-array antenna, correlator, phase-modulation, range-gating. [ABSTRACT FROM AUTHOR]