Definition: (DOD) The deliberate radiation, reradiation, alteration, suppression, absorption, denial, enhancement, or reflection of electromagnetic energy in a manner intended to convey misleading information to an enemy or to enemy electromagnetic-dependent weapons, thereby degrading or neutralizing the enemy's combat capability. Among the types of electromagnetic deception are: a. manipulative electromagnetic deception--Actions to eliminate revealing, or convey misleading, electromagnetic telltale indicators that may be used by hostile forces. b. simulative electromagnetic deception--Actions to simulate friendly, notional, or actual capabilities to mislead hostile forces. c. imitative electromagnetic deception--The introduction of electromagnetic energy into enemy systems that imitates enemy emissions.
See also electronic warfare.