Joint deinterleaving/recognition of radar pulses

An electronic support measures (ESM) system consists of a passive radar receiver that receives and measures the monopulse parameters of pulses emitted by radars in its instantaneous view, and a deinterleaver that sorts these pulses and groups them into individual cells. The cell parameters are compared with those stored in the threat library of the electronic warfare (EW) system to identify the intercepted radars. This paper proposes a new approach to deinterleave the intercepted pulses and identify the corresponding radars in one step. The proposed approach can successfully identify radars whose angles of arrival are very close. Moreover, the proposed approach can be applied as an integral part of the adaptive deinterleaving algorithm to prevent the ESM from taking actions against false radars and consequently, avoids a waste of the available resources. Computer simulation results have shown that the proposed approach can successfully deinterleave radar pulses and identify the corresponding radars.