Editing Kolchuga passive sensor (section)

===Target identification===
Kolchuga is able to detect and identify many types of radio devices mounted on ground, airborne, or marine objects.  Target detection relies only on an emitter having sufficient power and being within Kolchuga's frequency range.  Target identification, however, is more complex and is based on the measurement of different parameters of the transmitted signal&mdash;such as its frequency, bandwidth, pulse width, pulse repetition interval, etc.  Kolchuga has been reported to use around forty different parameters when identifying a target.  These parameters are compared to a database in order to identify both the type of emitter and, in some cases, even the specific piece of equipment (by identifying the unique signature or "fingerprint" that most transmitters have, due to the variations and tolerances in individual components).  The database within Kolchuga is said to have the capacity to store around three hundred different types of emitter and up to five hundred specific signatures for each type.