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Joint DOA and Frequency Estimation Method Based on Direct Data Domain

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Publicado en:Electronics vol. 14, no. 8 (2025), p. 1562
Autor principal: Wen Ronghui
Otros Autores: Li, Ming, Lin, Zheng
Publicado:
MDPI AG
Materias:
Receivers & amplifiers
Antenna arrays
Accuracy
Signal processing
Signal to noise ratio
Adaptive sampling
Signal detection
Antennas
Broadband
Algorithms
Spacetime
Direction of arrival
Parameter estimation
Acceso en línea:Citation/Abstract
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Resumen:A method for joint Direction of Arrival (DOA) and frequency estimation based on the Direct Data Domain (DDD-JDFE) is proposed. This algorithm, designed to work within an array antenna reception system, utilizes space-time adaptive processing techniques to acquire short-term samples through both spatial and temporal smoothing. It employs a broadband array direction-finding system to simultaneously determine the frequency and arrival direction of targets. Compared to traditional spatial-domain array signal processing methods, this approach provides improved direction-finding performance, particularly at low signal-to-noise ratios. Meanwhile, it shows great potential for long-distance signal detection, and simulation results have verified the effectiveness of the method.
ISSN:2079-9292
DOI:10.3390/electronics14081562
Fuente:Advanced Technologies & Aerospace Database