Active jamming suppression based on transmitting array designation for colocated multiple-input multiple-output radar

Juan Zhang; Nan Liu; Linrang Zhang; Shanshan Zhao; Yonghong Zhao

Active jamming suppression based on transmitting array designation for colocated multiple-input multiple-output radar

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Author(s): Juan Zhang ¹ ; Nan Liu ¹ ; Linrang Zhang ¹ ; Shanshan Zhao ¹ ; Yonghong Zhao ¹
- Affiliations: 1: National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, People's Republic of China
Source: Volume 10, Issue 3, March 2016, p. 500 – 505
DOI: 10.1049/iet-rsn.2015.0215 , Print ISSN 1751-8784, Online ISSN 1751-8792

Received 16/11/2014, Accepted 16/08/2015, Revised 21/07/2015, Published 01/03/2016

Owing to the closed spacing of the transmitting and receiving antennas, the colocated multiple-input multiple-output (MIMO) radar is easier to be blocked by jamming. The signal model of MIMO radar in active jamming scenario is different from that under the target-like interferences. The jamming echo caused by the radiate signal of the jammers includes the information of receiving array, but not the transmitting array. After match filters and beamforming, the output jamming power of the MIMO radar is related to the number of elements and spacing of the transmitting array. This study provides a potential method to suppress the active jamming by designing the suitable transmitting array. Compared with phased array radar, the proposed method can get improved performance for conventional beamforming or adaptive beamforming performance degradation cases. The effectiveness is verified by numerical simulation results.

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Active jamming suppression based on transmitting array designation for colocated multiple-input multiple-output radar

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