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Main Authors: Han, Zehua, Xiao, Jing, Duan, Yiqi, Xiang, Mengyu, Ji, Yuheng, Zheng, Xiaolong, Zhang, Chenghanyu, She, Zhendong, Shen, Junyu, Tan, Dingwei, Sun, Shichu, Cong, Zhou, Liu, Mingxuan, Wang, Fengxiang, Sun, Jinping, Sun, Yangang
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.28183
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author Han, Zehua
Xiao, Jing
Duan, Yiqi
Xiang, Mengyu
Ji, Yuheng
Zheng, Xiaolong
Zhang, Chenghanyu
She, Zhendong
Shen, Junyu
Tan, Dingwei
Sun, Shichu
Cong, Zhou
Liu, Mingxuan
Wang, Fengxiang
Sun, Jinping
Sun, Yangang
author_facet Han, Zehua
Xiao, Jing
Duan, Yiqi
Xiang, Mengyu
Ji, Yuheng
Zheng, Xiaolong
Zhang, Chenghanyu
She, Zhendong
Shen, Junyu
Tan, Dingwei
Sun, Shichu
Cong, Zhou
Liu, Mingxuan
Wang, Fengxiang
Sun, Jinping
Sun, Yangang
contents Multimodal Large Language Models have demonstrated powerful cross-modal understanding and reasoning capabilities in general domains. However, in the electromagnetic (EM) domain, they still face challenges such as data scarcity and insufficient integration of domain knowledge. This paper proposes PReD, the first foundation model for the EM domain that covers the intelligent closed-loop of "perception, recognition, decision-making." We constructed a high-quality multitask EM dataset, PReD-1.3M, and an evaluation benchmark, PReD-Bench. The dataset encompasses multi-perspective representations such as raw time-domain waveform, frequency-domain spectrograms, and constellation diagrams, covering typical features of communication and radar signals. It supports a range of core tasks, including signal detection, modulation recognition, parameter estimation, protocol recognition, radio frequency fingerprint recognition, and anti-jamming decision-making. PReD adopts a multi-stage training strategy that unifies multiple tasks for EM signals. It achieves closed-loop optimization from end-to-end signal understanding to language-driven reasoning and decision-making, significantly enhancing EM domain expertise while maintaining general multimodal capabilities. Experimental results show that PReD achieves state-of-the-art performance on PReD-Bench constructed from both open-source and self-collected signal datasets. These results collectively validate the feasibility and potential of vision-aligned foundation models in advancing the understanding and reasoning of EM signals.
format Preprint
id arxiv_https___arxiv_org_abs_2603_28183
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle PReD: An LLM-based Foundation Multimodal Model for Electromagnetic Perception, Recognition, and Decision
Han, Zehua
Xiao, Jing
Duan, Yiqi
Xiang, Mengyu
Ji, Yuheng
Zheng, Xiaolong
Zhang, Chenghanyu
She, Zhendong
Shen, Junyu
Tan, Dingwei
Sun, Shichu
Cong, Zhou
Liu, Mingxuan
Wang, Fengxiang
Sun, Jinping
Sun, Yangang
Artificial Intelligence
Multimodal Large Language Models have demonstrated powerful cross-modal understanding and reasoning capabilities in general domains. However, in the electromagnetic (EM) domain, they still face challenges such as data scarcity and insufficient integration of domain knowledge. This paper proposes PReD, the first foundation model for the EM domain that covers the intelligent closed-loop of "perception, recognition, decision-making." We constructed a high-quality multitask EM dataset, PReD-1.3M, and an evaluation benchmark, PReD-Bench. The dataset encompasses multi-perspective representations such as raw time-domain waveform, frequency-domain spectrograms, and constellation diagrams, covering typical features of communication and radar signals. It supports a range of core tasks, including signal detection, modulation recognition, parameter estimation, protocol recognition, radio frequency fingerprint recognition, and anti-jamming decision-making. PReD adopts a multi-stage training strategy that unifies multiple tasks for EM signals. It achieves closed-loop optimization from end-to-end signal understanding to language-driven reasoning and decision-making, significantly enhancing EM domain expertise while maintaining general multimodal capabilities. Experimental results show that PReD achieves state-of-the-art performance on PReD-Bench constructed from both open-source and self-collected signal datasets. These results collectively validate the feasibility and potential of vision-aligned foundation models in advancing the understanding and reasoning of EM signals.
title PReD: An LLM-based Foundation Multimodal Model for Electromagnetic Perception, Recognition, and Decision
topic Artificial Intelligence
url https://arxiv.org/abs/2603.28183