Schemes for synthesizing high-resolution range profile with extended OFDM-MIMO  

作　　者：Xinhai Wang Gong Zhang Fangqing Wen De Ben 

机构地区：[1]Key Laboratory of Radar Imaging and Microwave Photonics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [2]College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [3]Electronic and Information School,Yangtze University,Jingzhou 434023,China

出　　处：《Journal of Systems Engineering and Electronics》2017年第3期424-434,共11页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61071163;61071164;61471191;61501233);the Fundamental Research Funds for the Central Universities(NP2014504);the Aeronautical Science Foundation(20152052026);the Electronic&Information School of Yangtze University Innovation Foundation(2016-DXCX-05);the Funding for Outstanding Doctoral Dissertation in NUAA(BCXJ15-03);the Funding of Jiangsu Innovation Program for Graduate Education(KYLX15 0281);the Fundamental Research Funds for the Central Universities;partly funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PADA)

摘　　要：Two novel schemes are proposed to synthesize high resolution range profile (HRRP) based on co-located multiple-input multiple-output (MIMO) system in the context of the joint radar and communication system. The difference between two schemes is the pattern of selecting pulses, which depends on the demand for the velocity information. The system, a type of frequency diverse array (FDA), takes full advantage of the phase-coded orthogonal frequency division multiplexing (OFDM) signal. Furthermore, the complete discrete form of the phase-coded OFDM echoes is utilized to derive the HRRP processing. The velocity estimation in the second scheme aims to eliminate velocity ambiguity, and high velocity can be retrieved exactly. Meanwhile, the imaging method is investigated with random frequency coding applied to an array. The desired performance of resolving velocity ambiguity and suppressing noise is shown by means of comparisons with previous work. The advantages in the radar imaging and the significance of the work are concluded in the end.Two novel schemes are proposed to synthesize high resolution range profile (HRRP) based on co-located multiple-input multiple-output (MIMO) system in the context of the joint radar and communication system. The difference between two schemes is the pattern of selecting pulses, which depends on the demand for the velocity information. The system, a type of frequency diverse array (FDA), takes full advantage of the phase-coded orthogonal frequency division multiplexing (OFDM) signal. Furthermore, the complete discrete form of the phase-coded OFDM echoes is utilized to derive the HRRP processing. The velocity estimation in the second scheme aims to eliminate velocity ambiguity, and high velocity can be retrieved exactly. Meanwhile, the imaging method is investigated with random frequency coding applied to an array. The desired performance of resolving velocity ambiguity and suppressing noise is shown by means of comparisons with previous work. The advantages in the radar imaging and the significance of the work are concluded in the end.

关 键 词：high-resolution range profile (HRRP) multiple-input multiple-output system (MIMO) orthogonal frequency division multiplexing (OFDM) joint radar-communication system 

分 类 号：TN929.53[电子电信—通信与信息系统] TN958[电子电信—信息与通信工程]