系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (2): 407-415.doi: 10.12305/j.issn.1001-506X.2023.02.11
• 传感器与信号处理 • 上一篇
赵庆媛, 赵志强, 叶春茂, 鲁耀兵
收稿日期:
2021-12-28
出版日期:
2023-01-13
发布日期:
2023-02-04
通讯作者:
叶春茂
作者简介:
赵庆媛(1986—), 女, 高级工程师, 硕士, 主要研究方向为雷达智能化应用及目标识别Qingyuan ZHAO, Zhiqiang ZHAO, Chunmao YE, Yaobing LU
Received:
2021-12-28
Online:
2023-01-13
Published:
2023-02-04
Contact:
Chunmao YE
摘要:
调制谱间隔是气动目标识别的重要特征, 在雷达波形资源受限的情况下存在估计精度差且噪声鲁棒性弱的问题。针对此问题, 利用稀疏迭代协方差谱估计方法进行调制谱超分辨, 根据调制谱谱线等间隔的原理提出用基频组功率累积占比表征基频谱, 进而实现基频的超分辨估计。基于甚高频波段雷达的仿真和实测数据分析证明了该方法抗噪能力强, 且在相参积累时间大于1.5倍微动周期、调制谱折叠、重频参差等场景下均可有效提高调制谱间隔参数估计准确率。
中图分类号:
赵庆媛, 赵志强, 叶春茂, 鲁耀兵. 基于调制谱超分辨重构的微多普勒参数估计[J]. 系统工程与电子技术, 2023, 45(2): 407-415.
Qingyuan ZHAO, Zhiqiang ZHAO, Chunmao YE, Yaobing LU. Micro-Doppler parameter estimation based on super-resolution modulation spectrum reconstruction[J]. Systems Engineering and Electronics, 2023, 45(2): 407-415.
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