张方正

个人信息Personal Information

教授 博士生导师

招生学科专业:
电子科学与技术 -- 【招收硕士研究生】 -- 电子信息工程学院
信息与通信工程 -- 【招收博士、硕士研究生】 -- 电子信息工程学院
电子信息 -- 【招收博士、硕士研究生】 -- 电子信息工程学院

学历:北京邮电大学

学位:工学博士学位

所在单位:电子信息工程学院

办公地点:电子信息工程学院406

电子邮箱:

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

High-resolution phased array radar imaging by photonics-based broadband digital beamforming

点击次数:

所属单位:电子信息工程学院

发表刊物:Opt. Express

摘要:A photonics-based broadband phased array radar is demonstrated to realize high-resolution imaging based on digital beamforming. This photonics-based phased array radar can achieve a high range resolution enabled by a large operation bandwidth, and can realize squint-free beam steering by digital true time delay (TTD) compensation. In addition, the photonic dechirp processing applied in the receiver can alleviate the hardware requirements for data sampling and storage, and hence remarkably enhance the real-time signal processing capability. In a proof-of-concept experiment, target imaging by a photonics-based 1 × 4 phased array radar that has a bandwidth of 4 GHz (22-26 GHz) is demonstrated, of which the range and azimuth resolution is measured to be 3.85 cm and 2.68°, respectively. The proposed scheme provides good solution to overcoming the bandwidth limitation and implementing high-resolution imaging in a phased array radar. © 2019 Optical Society of America.

是否译文:

发表时间:2019-04-29

合写作者:Gao, Bindong,Zhao, Ermao,Zhang, Daocheng,潘时龙

通讯作者:张方正