Journal of Radio Electronics. eISSN 1684-1719. 2025. ¹12
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2025.12.12
of JOINT TDOA and FDOA estimation
D.S. Marychev, O.A. Morozov, A.V. Potapov
National Research Lobachevsky State University of Nizhny Novgorod
603022, Russia, Nizhny Novgorod, Gagarina ave, 23, b.3
The paper was received July 17, 2025.
Abstract. In this paper a problem of location and tracking of radiating objects using TDOA is considered. Using cross-ambiguity function is the one of traditional approaches to TDOA estimation in presence of Doppler effect. Cross-ambiguity function enables joint TDOA and FDOA estimation but is characterized by high computational complexity. A conventional cross-ambiguity function is based on Fourier transform and using Fast Fourier Transform is one of the ways to achieve better performance. In this paper the cross-ambiguity function is considered as a general integral transform where the Fourier transform is one of possible kernels. Modified cross-ambiguity functions which employ kernels of such transforms as Hartley, Walsh-Hadamard and Haar have been proposed. The results of performance analysis of TDOA estimation using the proposed transforms in cases of BPSK and FSK signals are presented.
Key words: signal detection, TDOA, FDOA, cross-ambiguity function, integral transforms.
Corresponding author: Marychev Dmitrii Sergeevich, dsmarychev@nifti.unn.ru
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For citation:
Marychev D.S., Morozov O.A., Potapov A.V. Performance analysis of joint TDOA and FDOA estimation using integral transforms // Journal of Radio Electronics. – 2025. – ¹. 12. https://doi.org/10.30898/1684-1719.2025.12.12 (In Russian)