The invention refers to an air defense system comprising at least one counter countermeasures device, and at least one anti-aircraft weapon system and to an anti-aircraft combat method comprising said air defense system. The counter countermeasures device is configured for generating and emitting electromagnetic radiation of appropriate wavelengths, i.e. simulated missiles, that mimic real anti-aircraft missiles, and, in this way, the anti-aircraft missile launch warning and detection system (MLWDS) installed on aircrafts are deceived and the countermeasures are released. The operation of the counter countermeasures device and of the anti-aircraft weapon system, i.e. emitting of simulated missiles and launching of anti-aircraft missiles, is coordinated. The counter countermeasures device is implemented as a standalone device or is attached to or is integrated into the anti-aircraft weapon system. With the proposed air defense system and method, the efficiency of the anti-aircraft combat is highly improved, i.e. the probability of the target hit is highly improved.

Systems and methods are described herein for implementing a multi-location jammer detection for initiation of an emergency protocol. An example method may include monitoring, by a first wireless device, a noise variance within a bandwidth of the first wireless device. The method includes determining, by a processing device of the first wireless device, that a jammer device is present in response to the noise variance within at least part of the bandwidth exceeding a threshold. The method includes transmitting, to a second wireless device, a distress signal indicating that the jammer device is present and disrupting communication of the first wireless device.