I. Introduction
Electronic support systems have been a major countermeasure to radar systems. Two systems that are opponents on the surveillance area operate in a similar fashion. Radar systems detect and track targets by emitting electromagnetic beams and receiving the signal echo. Scan strategies with different antenna scan types, signal modulations and frequency modes are planned as dwells. These dwells are scheduled in order to satisfy time and energy constraints and improve Probability of Detection (POI) [1]. Electronic support systems detect, identify and track radar systems operating in the surveillance area. Dwells are planned to tune the receivers on the system to a frequency range for a certain amount of time and signals are collected by the receiver on that time interval.