Beam-shape loss for multiple-beam digital array radars

Yuan Yao; Guangxin Wu

doi:10.1049/joe.2019.0355

Beam-shape loss for multiple-beam digital array radars

The Journal of Engineering ◽

10.1049/joe.2019.0355 ◽

2019 ◽

Vol 2019 (19) ◽

pp. 5593-5596

Author(s):

Yuan Yao ◽

Guangxin Wu

Keyword(s):

Beam Shape ◽

Multiple Beam ◽

Shape Loss

Download Full-text

Correction to "A beam-shape loss formula for a statistically located target"

Proceedings of the IEEE ◽

10.1109/proc.1969.6903 ◽

1969 ◽

Vol 57 (1) ◽

pp. 112-112

Author(s):

J.R. Pace

Keyword(s):

Beam Shape ◽

Shape Loss ◽

Loss Formula

Download Full-text

MIMO Radar Array Antenna with Transmit-Receive Subarrays

International Journal of Intelligent Engineering and Systems ◽

10.22266/ijies2020.1231.17 ◽

2020 ◽

Vol 13 (6) ◽

pp. 189-198

Author(s):

Syahfrizal Tahcfulloh ◽

Keyword(s):

Performance Improvement ◽

Phased Array ◽

Mimo Radar ◽

Interference Effects ◽

Sidelobe Level ◽

Beam Shape ◽

Waveform Diversity ◽

Half Power ◽

Simulation And Evaluation ◽

Shape Loss

Unlike the PMIMO radar, the transmit-receive (Tx-Rx) subarrays MIMO (TRSM) radar uses overlaping subarrays in Tx and Rx array so that it simultaneously combines the main advantage of the phased array radar (PA) i.e., high directional coherent gain, and the main advantage of the MIMO radar i.e., high waveform diversity gain. This paper has derived the radar performance formula such that Tx-Rx gain and SINR. The approach aims to overcome the beam shape loss, increase the transmit-receive gain, minimize the maximum peak sidelobe levels, narrow the half power beamwidth, increase directivity, and increase signal-to-noise-plus-interference ratio (SINR). This radar's performance is compared to the PMIMO radar in various methods such as equal subarrays, unequal subarrays, and optimum partitioning, the PA radar, and the MIMO radar. The numerical simulation and evaluation results show that the proposed radar has several advantages such as lowest the peak sidelobe level, narrow the half power beamwidth, and high directivity, so it is very robust against interference effects. When compared to the OPPM radar, as representative of the best-performing radars, this radar has an average performance improvement of MPSLL, directivity, and HPBW which are 21.5 dB, 2 dB, and 0.45 deg, respectively.

Download Full-text