ABSTRACT
A radar Electronic Support Measures (ESM) system performs two functions, warning of
impending emitters and surveillance to determine the radar activities. Automatic radar ESM
system consists of a passive radar receiver which receives emissions from other platforms,
measures the parameters of each received pulse and a deinterleaver that sorts the intercepted
pulses to enable determination of the individual radar parameters. Theses parameters are
compared with the stored parameters of known radars to identify the intercepted emitter type.
Consequently the threat level and the optimum jamming program for the intercepted emitter
could be derived. This paper proposes a new approach to deinterleave the intercepted pulses
and identify their 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 their corresponding radars.