Networked FDA-MIMO radar positioning to suppress dense false target jamming

Abstract

Aiming at the dense false target jamming, the existing research does not consider the problems of true and false target identification and position estimation at the same time. A method of dense false target jamming suppression is proposed based on multiple-input multiple-output frequency diverse array (FDA-MIMO) radar network, which makes full use of the different characteristics of true and false targets in the space-time two-dimensional range distribution. It discriminates true and false targets and locates true targets and jamming sources in transmit-receive two-dimensional frequency domain. Then other radars in the information sharing network are instructed to silence sector at the location of the jamming source to reduce the jamming power into the radar. The netting radars capabilities of target detection and jamming suppression are improved by this method.

Improved MUSIC Method against Range Dimension Deceptive Jamming Based on FDA-MIMO

“…Unlike phased arrays that can only transmit the same carrier frequency signal, by attaching a frequency offset increment to the array element, which is much smaller than 2 of 16 the carrier frequency, the transmitted beam of the FDA has a range-angle that is dimension dependent [9,10]. By combining the FDA with the MIMO radar, it is possible to aggregate information from the transmitter side to the receiver side and to be more flexible in the use of range dimension freedom [11,12], giving the FDA-MIMO radar great potential for applications against main-lobe deceptive interference [13][14][15][16][17][18].…”