Journal of Radio Electronics. eISSN 1684-1719. 2026. №3
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2026.3.11
EVALUATION OF THE COMPUTATIONAL EFFICIENCY
OF A LOW-COST METHOD FOR CALCULATING
THE TWO-DIMENSIONAL SPATIAL BARTLETT SPECTRUM
P.I. Soganov, M.A. Stepanov
Novosibirsk State Technical University,
630073, Russia, Novosibirsk, Karl Marx pr., 20
The paper was received February 24, 2026.
Abstract. This paper examines a method for calculating a two-dimensional spatial spectrum as a combination of two one-dimensional ones. Expressions are derived that allow us to estimate the reduction in the number of addition and multiplication operations required to calculate the two-dimensional spatial spectrum depending on the number of antenna array elements. The reduction in the number of mathematical operations required to calculate the two-dimensional spatial spectrum when it is calculated as a combination of two one-dimensional ones is estimated. It is shown that, with a single target in the resolution element, the two-dimensional spatial spectrum calculated as a combination of two one-dimensional ones is identically equal to the two-dimensional spatial spectrum estimated using the classical method. It is established that, with multiple objects in the resolution element, the shape of the two-dimensional spatial spectrum estimated as a combination of two one-dimensional ones is distorted–it differs from the spectrum estimated using the classical method. Distortions in the shape of the two-dimensional spatial spectrum calculated as a combination of two one-dimensional ones lead to the appearance of false targets and masking of the true ones.
Key words: spatial spectrum, Bartlett's algorithm, BeamScan, computational complexity.
Financing: The study was supported by the Russian Science Foundation grant No. 25-29-01349, https://rscf.ru/project/25-29-01349/.
Corresponding author: Stepanov Maksim Andreevich, m.stepanov@corp.nstu.ru
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For citation:
Soganov P.I., Stepanov M.A. Evaluation of the computational efficiency of a low-cost method for calculating the two-dimensional spatial Bartlett spectrum // Journal of Radio Electronics. – 2026. – №. 3. https://doi.org/10.30898/1684-1719.2026.3.11 (In Russian)