Abstract
Most of the existing antenna scan type (AST) identification techniques focus on only mechanical scanning (MS) and rarely research electronic scanning (ES), especially one-dimensional (1D) ES. This paper proposes a recognition and parameter extraction method of 1D ES for 3D radar, which employs both MS and ES. An ES pattern simulator is designed to synthesize pulse amplitude (PA) data first. Then 1D ES is distinguished from MS and two-dimensional (2D) ES based on the features extracted from the difference sequences of beam sequence, such as resemblance coefficient (RC) and variance. Subsequently, two vital parameters for 1D ES are extracted, namely, beam position number in elevation and pulse number in a beam position. Finally, some simulation results are shown to validate the proposed algorithm.
Highlights
In modern electronic warfare (EW), 3D radar [1,2,3] with electronically scanned beam in elevation, namely, onedimensional (1D) electronic scanning (ES), has been widely used for tactical applications
It is inadequate for electronic intelligence (ELINT) [5] and electronic support measurement (ESM) systems to obtain radar information based on the conventional parameters [6], such as radio frequency (RF), angle of arrival (AOA), time of arrival (TOA), pulse width (PW), pulse amplitude (PA), and pulse repetition interval (PRI)
We studied the problem of recognition and parameter extraction of 1D ES for 3D radar on which no clear and accessible study is available in the open literature
Summary
In modern electronic warfare (EW), 3D radar [1,2,3] with electronically scanned beam in elevation, namely, onedimensional (1D) electronic scanning (ES), has been widely used for tactical applications. In literature [13], Barshan and Eravci provide a novel ASP estimation and AST classification technique based on pattern recognition. Their algorithm seems effective and robust for 5 basic ASTs: circular scan, sector scan, raster scan, helical scan, and conical scan. The main contribution of this paper is providing lead recognition and parameter extraction of 1D ES for 3D radar. We give an approach to extract key parameters of 1D ES for 3D radar, including beam position number in elevation and pulse number in a beam position. The parameters extracted in this paper, including ASP, beam position number in elevation, and pulse number in a beam position, are crucial for estimating the beam direction of 3D radar.
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