Author(s)

Ming Ma, Guoqing Huang, Mingchao Luo, Lijie Zhao

Department of Aeronautic Electronic Engineering, The First Aeronautic Institute of the Air Force, Xinyang, China.
PLA Troop 93846, China.

Fast frequency hopping systems are widely used in military communications because of the good security. But this system is usually jammed by hostile jammers such as multitone. To resist the multitone jamming for fast frequency hopping systems, a novel receiver architecture based on independent component analysis(ICA) is proposed. In this receiver, signals and jamers are separated using ICA firstly, then the hopping signals are demodulated by traditional receiver to get the trasmitted information. Computer simulations show that the proposed receiver can gain lower bit error ratio than traditional receiver under same intensity jamming.

blind source separation; fast frequency hopping; multi-tone jam