A Multi-Target ISAR Imaging Method Based on Zhang-Suen Thinning and Radon Transform

Li, Hongxu; Su, Fulin

doi:10.1109/cisp-bmei56279.2022.9980197

Cited by 1 publication

(2 citation statements)

References 11 publications

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“…In recent decades, the increase in collaborative attack methods on aerospace targets such as aircraft, missiles and satellites has made the modern battlefield more diverse and complex [1][2][3], which requires the radar to obtain information from multiple targets simultaneously and efficiently [4][5][6][7][8][9][10][11][12][13][14][15][16]. ISAR provides a way to obtain high-resolution images of aerospace targets without limitations imposed by time, weather and environmental factors, playing an important role in space target monitoring, recognition and other fields.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the mainstream solutions to the problem of multiple targets in the same radar beam are broadly classified into two categories: simultaneous imaging methods [6,7] and separation imaging methods [8][9][10][11][12]. Chen and Qian [7] used the joint time-frequency transform for instantaneous imaging of multiple targets after uniform motion compensation of the echo signal.…”

Section: Introductionmentioning

confidence: 99%

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A New Waveform Design Method for Multi-Target Inverse Synthetic Aperture Radar Imaging Based on Orthogonal Frequency Division Multiplexing Chirp

Zou,

Jin,

et al. 2024

Remote Sensing

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With the increasing use of the strategy and group target attack method in the modern battlefield, multi-target inverse synthetic aperture radar (ISAR) imaging simultaneously with high efficiency draws more and more attention, which gives a promising prospect for aerospace target detection and recognition in the multi-target scenario. To overcome the shortcomings of traditional multi-target imaging with one beam at one pulse repetition time (PRT) based on phase array radar (PAR), this paper proposes a novel multi-target imaging waveform design method based on the newly full digital array radar (DAR). Firstly, we propose using radar waveform diversity with 2D orthogonality to realize multi-target ISAR imaging with high imaging quality and efficiency. Then, to meet the constant modulus requirement for maximizing the transmitting power, orthogonal frequency division multiplexing (OFDM) chirp theory is proposed to directly generate the transmit waveform instead of the traditional optimization method with the nonconvex problem for waveform design. Based on time-variant weighted and time diversity technology, a of group transmit waveforms is designed, which can form multiple beams simultaneously and make the signals arriving at different targets approximately orthogonal. Finally, simulations and experiments are carried out to demonstrate the effectiveness of the proposed method.

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