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access icon openaccess Collection probability with discrete random signal-to-interference power ratios in multiple interferences for electronic intelligence receivers

This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Received 27/06/2013, Accepted 12/08/2013, Published 16/08/2013

In certain applications, signal transmit power is adjusted in discrete levels. Moreover, interference powers themselves can be discretely random. For electronic intelligence applications, the authors refer to the signal to be collected as signal of interest (SoI). Thus, for a passive receiver, the resulting instantaneous SoI-to-interference power ratio (SIR) in multiple interferences is a discrete random variable. This means signal detection or collection is not guaranteed. They proposed collection probability (CP) as a metric when the SIR is random. In this study, the authors evaluate CP probabilistically and show CP against SIR threshold degradation and/or improvement as a function of increasing number of interferences, increasing signal power range and increasing distribution gain.

Inspec keywords: radio receivers; interference suppression; random processes; signal detection; probability

Other keywords: SoI-to-interference power ratio; signal of interest; collection probability; signal power transmission adjustment; SIR threshold degradation; SIR; discrete random variable; electronic intelligence receiver; passive receiver; discrete random signal-to-interference power ratio; distribution gain; SoI; signal power range

Subjects: Radio links and equipment; Other topics in statistics; Signal detection; Electromagnetic compatibility and interference

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