Affiliation:
1. Nanjing Marine Radar Institute Nanjing Jiangsu China
2. College of Computer and Information Hohai University Nanjing Jiangsu China
3. International Department of Jinling High School, Hexi Campus Nanjing Jiangsu China
Abstract
AbstractThis study proposes a novel method, that is, synthesized pattern null (SPN) method. The SPN method has very low computational complexity, which can be fully applied to all range‐azimuth resolution cells of the actual radar system. It does not depend on the multipath propagation model and has good robustness. This study presents the derivation process, the simulation results, and comparative experimental results of the actual radar system. The results reveal that the SPN method can significantly reduce the elevation angle error for low‐angle targets, and the root mean square error (RMSE) can be reduced to about 1/15 beam width. Moreover, compared with the synthesized vector maximum likelihood method, this method has similar angle measurement performance, much lower computational complexity and better robustness.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Reference13 articles.
1. BartonD. Low‐angle radar tracking.Proc IEEE. June1974;62:687‐704.
2. Low angle radar tracking in the presence of multipath;White W;IEEE Trans,1974
3. DaxP. Accurate tracking of low elevation targets over the sea with a monopulse radar.Proceedings of the IEE Conference in Radar‐Present and Future.1973;160‐165.
4. Complex Indicated Angles Applied to Unresolved Radar Targets and Multipath
5. Frequency Diversity in Low-Angle Radar Tracking