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Transmit Beamforming Based on 4-D Antenna Arrays for Low Probability of Intercept Systems.
- Source :
- IEEE Transactions on Antennas & Propagation; May2020, Vol. 68 Issue 5, p3625-3634, 10p
- Publication Year :
- 2020
-
Abstract
- This article has developed a new approach to combine transmit beamforming techniques and 4-D antenna array theory for simultaneously improving the detection and low probability of intercept (LPI) capabilities of radar. This new approach enjoys most of the advantages of multiple-input multiple-output (MIMO) and phased arrays, providing excellent detection and LPI capabilities. The essence of the proposed approach is to utilize a 4-D variable to extend the detection dimension and increase the signal uncertainty. Specifically, the flexible choices of a time-modulation scheme can greatly improve the detection and LPI capabilities of radar. The substantial improvements achieved by the proposed method compared with basic MIMO and phased-MIMO arrays are demonstrated by simulations through analyzing the corresponding beampatterns. In addition, a basic experiment with reference to transmit beampatterns of 4-D antenna arrays is presented to validate the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 68
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 143174232
- Full Text :
- https://doi.org/10.1109/TAP.2019.2963593