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- Title
Closed‐form angle estimation of unresolved targets in monopulse radar to counter the angular electronic attack.
- Authors
Rezaei, Habib; Sebt, Mohammad Ali; Zarei, Nadali; Saadati Moghadam, Goudarz
- Abstract
Typical monopulse radar cannot detect the angle of two closely‐spaced targets in one resolution cell. The authors propose a closed‐form technique to estimate the angle of two unresolved targets by using a single snapshot of four radar receiver channels. In this work, phase comparison and amplitude comparison problems for monopulse radar are resolved. The monopulse radar angle estimation system has been enhanced using the diagonal difference channel. Using a single pulse, this technique can accurately determine the angle and amplitude of the deceptive decoy and the real target. If both targets have the same direction, the proposed scheme cannot detect them; therefore, to estimate the angle of such targets, we used an additional antenna. The effectiveness of the proposed method is validated by comparing the exact solutions and simulations.
- Subjects
MONOPULSE radar; RADAR targets; ANTENNAS (Electronics); ANGLES; ESTIMATION theory; DIRECTION of arrival estimation
- Publication
IET Signal Processing (Wiley-Blackwell), 2023, Vol 17, Issue 4, p1
- ISSN
1751-9675
- Publication type
Article
- DOI
10.1049/sil2.12203