Tactical radio and radio network with electronic countermeasures

A radio network comprising:

• one or more radios each of which includes:
• a radio frequency (RF) processing module having a receiving component path and a transmitting component path;
• a signal processing module coupled to the RF processing module and including;
• a jammer detection stage coupled to an output of the receiving component path of the RF processing module and operative to identify an interfering signal as emitted from a jammer or other source of RF interference on a channel over which desired communications signals are received simultaneously with the interfering signal, and to estimate propagation conditions associated with the channel,
• a jammer model stage coupled to an output of the jammer detection stage and configured to produce a waveform model of the identified interfering signal, and
• a channel model stage coupled to outputs of the jammer detection and the jammer model stages, and arranged to replicate the propagation conditions estimated by the jammer detection stage and to output a corresponding cancellation signal;
• wherein the cancellation signal output of the channel model stage is coupled to an input of the transmitting component path of the RF processing module, and the transmitting component path is coupled to the receiving component path so that the cancellation signal is operative to cancel or reduce the interfering signal;
• one or more nodes each of which is constructed and arranged to transmit a friendly jamming signal to disrupt RF communications or signaling on one or more channels among nodes outside the network;
• and
• each radio in the network includes a database associated with the jammer model stage for defining a friendly jamming signal waveform known to be present at a given time.