摘要
传统雷达存在主瓣欺骗式干扰难抑制、距离模糊杂波难分离等问题。一方面,由于增加了发射维自由度,波形分集阵列新体制的提出改变了雷达获取信息的方式。另一方面,通过灵活的系统设计和信号处理方法,增强了信息提取能力,在抗干扰、检测等方面比传统相控阵、MIMO雷达有明显的性能提升。该文总结了波形分集阵列雷达的国内外最新研究进展,分别从频率、时间和相位调制方式给出阵列分集体制的基本概念,并对波形分集阵列雷达的研究趋势进行了梳理。在现有基础理论和关键技术研究的基础上,验证波形分集阵列在提供目标新信息、增加系统额外可控自由度方面的优势,提升了新体制雷达的多维探测能力。
It is difficult for the traditional radar to suppress deceptive mainlobe interference and separate the range ambiguous clutter. The proposal of a waveform diverse array changes the way of obtaining information through utilizing degrees-of-freedom in the transmit dimension. Through flexible system design and signal processing methods, this array enhances the ability of information extraction and improves the anti-jamming and detection performance, compared with the traditional phased array and Multiple-Input Multiple-Output(MIMO) radar. This paper summarizes the research progress of waveform diverse array radars in China and overseas and provides the basic concepts of the array diversity system regarding frequency, time, and phase modulation. Furthermore, the research trend of waveform diverse array radars has been discussed. Based on the existing basic theory and key technology research, the advantages of a waveform diverse array in providing new information about targets and increasing the additional controllable degrees-of-freedom of the system are verified, thereby improving the multidimensional detection capability of the new radar system.
作者
朱圣棋
余昆
许京伟
兰岚
李西敏
ZHU Shengqi;YU Kun;XU Jingwei;LAN Lan;LI Ximin(National Laboratory of Radar Signal Processing,Xidian University,Xi’an 710071,China)
出处
《雷达学报（中英文）》
CSCD
北大核心
2021年第6期795-810,共16页
Journal of Radars
基金
国家自然科学基金(61931016,62071344,62101402,61911530246)
陕西省杰出青年科学基金(2019JC-16)
中国博士后科学基金(2021TQ0261,2021M702547)。
关键词
波形分集阵列
发射维自由度
频率分集阵列
时间分集阵列
阵元脉冲编码阵列
抗主瓣欺骗干扰
距离模糊杂波
高分宽幅成像
Waveform Diverse Array(WDA)
Degrees-of-freedom in the transmit dimension
Frequency Diverse Array(FDA)
Time Diverse Array(TDA)
Element pulse coding array
Suppression of mainlobe deception interference
Range ambiguous clutter
High resolution and wide swath imaging
