Study of jamming technology to frequency division multiplexing linear frequency modulation MIMO radars

The orthogonal frequency division multiplexing linear frequency modulation (OFDM-LFM) MIMO radar, as a typical MIMO radar has been studied comparatively well. It is necessary to study its countermeasure method. For this purpose, a jamming method is proposed in this paper. Which can degrade the radar performance by transmitting multi-signal synchronously. First, the parameters of OFDM-LFM radar are analyzed and the multi-jamming-signals are generated at the same time. Compared with the traditional methods, the approach requires less jamming power. Furthermore, the bigger amount of subarrays the less jamming power is required. The simulation experiments show that the method is effective to counter MIMO radar with a small jamming power.