通信学报2024，Vol.45Issue(7)：223-234,12.DOI:10.11959/j.issn.1000-436x.2024130
复杂场景下基于稀疏表示的多目标生命体征估计
Multi-target vital sign estimation based on sparse representation under complex scenes
摘要
Abstract
Focusing on the issue that millimeter-wave radar was difficult to accurately estimate the vital signs of multiple moving targets in complex indoor scenes,a multi-target vital sign estimation method based on sparse representation un-der complex scenes was proposed.Firstly,the echo data was preprocessed to acquire the point clouds of target and back-ground.After that,a dynamic clutter suppression model was constructed to filter out the dynamic interference.In what follows,the echo data was assigned to the corresponding target,and multi-target tracking could be achieved by exploit-ing the extended Kalman filter to extract the phase information of the chests of the multi-moving targets.Subsequently,with the sparsity of respiratory and heartbeat signals in the frequency domain,a data-driven adaptive dictionary construc-tion method was proposed to effectively separate respiratory and heartbeat signals.Finally,high precision multi-target vi-tal signs estimation could be achieved by using the sparse reconstruction method.Amount of experimental results in the actual scenes show that the proposed method can effectively perceive the vital signs of multi-target in complex dynamic clutter scenes as compared to the state-of-the-art vital sign estimation methods.关键词
毫米波雷达/生命体征检测/动态杂波/稀疏表示/自适应字典Key words
millimeter wave radar/vital sign detection/dynamic clutter/sparse representation/adaptive dictionary分类
信息技术与安全科学引用本文复制引用
王洪雁,马嘉康,黄梓峰..复杂场景下基于稀疏表示的多目标生命体征估计[J].通信学报,2024,45(7):223-234,12.基金项目
国家自然科学基金资助项目(No.61871164) （No.61871164）
浙江省自然科学基金重点项目(No.LZ21F010002) （No.LZ21F010002）
电子信息系统复杂电磁环境效应国家重点实验室基金资助项目(No.CEMEE2023K0301) The National Natural Science Foundation of China(No.61871164),The Key Projects of Natural Science Foun-dation of Zhejiang Province(No.LZ21F010002),The Laboratory Research Foundation of State Key Laboratory of Complex Electro-magnetic Environment Effects on Electronics and Information System(No.CEMEE2023K0301) （No.CEMEE2023K0301）
