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3-D Imaging With Vortex Electromagnetic Wave Radar Based on Nested Array Structure—Part II: Adaptive Resource Scheduling Algorithm
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DOI：10.1109/JSEN.2025.3619244.png)
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Abstract
En 中文
A vortex electromagnetic wave (VEMW) radar 3-D imaging method with sparse observation based on a nested array structure has been proposed in Part I of this article, which can improve the imaging performance with fewer radar resources, effectively reducing the demand for target imaging for radar resources. However, for a multitarget 3-D imaging task, the non-negligible resource allocation conflicts still remain to be solved, which not only requires the sparse imaging method proposed in Part I of this article to reduce the demand for radar resources for target imaging, but also requires the corresponding resource optimization scheduling algorithm to achieve reasonable allocation of radar resources among multiple targets. In this article, based on the proposed sparse imaging method in Part I of this article, which increases the freedom of resource scheduling due to the adjustability of the emitted OAM modes, carrier frequencies, and the number of emitting array elements, an adaptive resource scheduling algorithm is proposed with the goal of saving observation time, improving array element and frequency utilization, and achieving the radiation intensity equalization of emitted vortex beams. As a result, OAM modes, emitting array elements, and carrier frequency can be reasonably allocated among targets, and 3-D images with good imaging performance can be achieved. Simulations illustrate the effectiveness of the proposed method.
Keywords:
Adaptive resource scheduling
multitarget imaging
nested array structure
vortex electromagnetic wave (VEMW) radar
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4.5
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2.1W
Citations:
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