High resolution range profile analysis based on multicarrier phase-coded waveforms of OFDM radar

被引：18
|
作者：
Huo, Kai [1 ]
Deng, Bin [1 ]
Liu, Yongxiang [1 ]
Jiang, Weidong [1 ]
Mao, Junjie [1 ]
机构：
[1] Natl Univ Def Technol, Sch Elect Sci & Engn, Inst Space Elect Technol, Changsha 410073, Hunan, Peoples R China
来源：
JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2011年 / 22卷 / 03期
基金：
中国国家自然科学基金;
关键词：
orthogonal frequency division multiplexing (OFDM); high resolution range profile (HRRP); multicarrier; phase-coded; frequency offset;
D O I：
10.3969/j.issn.1004-4132.2011.03.009
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Orthogonal frequency division multiplexing (OFDM) radar with multicarrier phase-coded waveforms has been recently introduced to achieve high range resolution. The conventional method for obtaining the high resolution range profile (HRRP) is based on matched filters. A method of synthesizing HRRP based on the fast Fourier transform (FFT) and decoding is proposed. The mathematical expressions of HRRP are derived by assuming an elementary scenario of point-scattering targets. Based on the characteristic of OFDM multicarrier signals, it mainly analyzes the influence on HRRP exerted by several factors, such as velocity compensation errors, the sampling frequency offset, and so on. The conclusions are significant for the design of the OFDM imaging radar. Finally, the simulation results demonstrate the validity of the conclusions.
引用
收藏
页码：421 / 427
页数：7
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