Abstract
Electronic warfare (EW) receivers-radar warning receivers and jammer receiver processors-are an element of Electronic Support (ES). EW receivers provide situational awareness (SA) about radar systems and other emitters (e.g., radios, data links) in the radio frequency (RF) environment [Neri, 2006, Chapter 4; Schleher, 1999, Chapter 6]. An EW receiver uses sensitive receivers to collect radar waveforms from the RF environment. It then detects radar signals in the presence of EW receiver thermal noise. Signal processors extract parameters from the detected radar signals and use them to identify specific radar systems and determine their location. The challenge for an EW receiver is to do all this quickly in a dense RF environments, millions of radar pulses per second and background (e.g., TV, radio, cell phone) emitters, at operationally useful ranges. The fundamental goal of all EW receivers is to “see them (radar systems) well before they see you (the platform with the EW receiver).
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