A new judging method for radar electromagnetic compatibility analysis

This paper proposes a new judging method of EMC based on signal detection theory. First of all, the traditional judging method of interference measure is introduced, and its disadvantage is pointed out. Then, the signal processing of radar system is analyzed, and the relationship of detection probability (p
_d
) and interference to noise ratio (INR) is established. Based on the definition extension of detection probability, p
_d
is used to judge radar electromagnetic compatibility. Finally, simulation results indicate that the detection probability fall to 50% as the interference power exceeds the threshold 1.7 dB. This method can illuminate the interference condition between radars quantitatively and objectively.