西安电子科技大学学报（自然科学版）2018，Vol.45Issue(3)：7-12,6.DOI:10.3969/j.issn.1001-2400.2018.03.002
采用OFDM-LFM的MIMO雷达高速目标波形设计
MIMO radar waveform design via OFDM-LFM for a high speed target
摘要
Abstract
By applying the wide transmit beam property,colocated multi-input and multi-output(MIMO) radar can save the energy loss caused by the transmit beam crossing effect of a high speed target.However, existing MIMO radar waveforms have a bad velocity tolerance ability.When the echo of the high speed target is match filtered with these waveforms,the energy loss is unneglectable.Therefore,it is necessary to design a suitable MIMO radar waveform under the high speed target condition.This paper derives the waveform based on the orthogonal frequency division multiplexing linear frequency modulation (OFDM-LFM) signal.A linear frequency modulation (LFM) signal set with frequency diversity is time division multiplex used by different channels.Hence,all waveforms are separable and share the same bandwidth. Simulation results show that the proposed MIMO radar waveform can effectively reduce the energy loss in the matched filtering process,which fits the high speed target background.关键词
多输入多输出雷达/波形设计/正交频分复用线性调频/高速目标Key words
multi-input and multi-output radar/waveform design/orthogonal frequency division multiplexing linear frequency modulation(OFDM-LFM)/high speed target分类
信息技术与安全科学引用本文复制引用
李升远,张馨恬,唐世阳..采用OFDM-LFM的MIMO雷达高速目标波形设计[J].西安电子科技大学学报（自然科学版）,2018,45(3):7-12,6.基金项目
国家自然科学基金资助项目(61731023) （61731023）
