The utilization of unintentional radiation for identification of the radiation sources

A significant role in ESiWELINT system is played by Measurement and Signature Intelligence (MASINT) based on non-intentional emission (callsradiated emission). This emission is a source of knowledge about an analysed emitter due to its incidental ""chemical", "spectral" traces and non-communication emitter??s characteristics. The process of Specific Emitter Identification (SEI) based on extraction of distinctive radiated emission features is presented in this article. Especially important is utilization of a database (DB) in the process of identifying a detectable radar emission (ref. [31).