空天预警研究学报2023，Vol.37Issue(4)：235-238,251,5.DOI:10.3969/j.issn.2097-180X.2023.04.001
基于偏航角补偿和支撑区间的机载雷达近程杂波提取方法
Airborne radar short-range clutter extraction based on yaw angle compensation and support interval
郭晓乐 1邱炜 1杨雪亚1
作者信息
- 1. 中国电子科技集团公司第三十八研究所,合肥 230088||孔径阵列与空间探测安徽省重点实验室,合肥 230088
- 折叠
摘要
Abstract
In the short-range ground target detection with the non-side-looking airborne radar,since the pitch angle of ground clutter scatterers varies with distance,the clutter distribution shows non-homogeneity,resulting in high near-range clutter intensity,which greatly affects the subsequent target detection.In order to eliminate short-range clutter effectively,this paper proposes a method of short-range clutter extraction based on yaw angle compensation and support interval.Firstly,the scatter azimuth and the aerial carrier yaw angle are estimated from the long-range clutter formed by the main lobe.Then,the support interval of clutter is determined according to the antenna installation angle,yaw angle and other factors.Finally,the short-range clutter region is extracted by sub-section processing.The experimental results show that,in time of extracting the short-range clutter,the proposed method can be used to obtain the information directly from the spectrum and process it,with small computation and convenience for engineering application.关键词
机载雷达/偏航角/近程杂波/支撑区间/分段提取Key words
airborne radar/yaw angle/short-range clutter/support interval/subsection extraction分类
信息技术与安全科学引用本文复制引用
郭晓乐,邱炜,杨雪亚..基于偏航角补偿和支撑区间的机载雷达近程杂波提取方法[J].空天预警研究学报,2023,37(4):235-238,251,5.
