Open AccessRadar with increased angular resolution of objects in wide-angle scanning
Author(s) -
S. N. Plohov,
Sergey Shabunin
Publication year - 2020
Publication title -
ural radio engineering journal
Language(s) - English
Resource type - Journals
eISSN - 2588-0462
pISSN - 2588-0454
DOI - 10.15826/urej.2020.4.3.004
Subject(s) - radar , antenna (radio) , fire control radar , computer science , angular resolution (graph drawing) , bistatic radar , orthogonality , continuous wave radar , radar imaging , radar engineering details , antenna array , transmitter , remote sensing , acoustics , physics , telecommunications , geology , mathematics , channel (broadcasting) , geometry , combinatorics
The parameters of radar antenna systems constructed according to the traditional scheme with phase shifters inserted both in the transmitting and receiving antenna array with the radar in which signal processing is performed only on the receiving side are considered and compared in the paper. In the second case, an additional requirement of orthogonality of the radiated signals is imposed on the radiating system of the transmitter. The characteristics of the radar with three transmitters and four receivers are compared. Two variants of forming a virtual antenna array are considered. In the first case, the radiation of the linear regular antenna array is analyzed, in the second case the thinned one, but with the same number of emitters. We demonstrate that in the second case, it is possible to implement the radar with a better angular resolution. The features of using the radar as a short-range radar for vehicle security systems with a wide-angle view are elaborated. The possibility of false capture of the target is noted. The authors of the research suggest the unambiguous direction finding method.