Multigrid Based Sparse Recovery Method for Multidimensional Harmonic Retrieval C ok Boyutlu Sinyaller icin C ok Izgarali Seyrek Gericatim Yontemi
28th Signal Processing and Communications Applications Conference, SIU 2020, Gaziantep, Türkiye, 5 - 07 Ekim 2020, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/siu49456.2020.9302217
- Basıldığı Şehir: Gaziantep
- Basıldığı Ülke: Türkiye
- Anahtar Kelimeler: frequency estimation, Multidimensional harmonic retrieval, simultaneous sparse approximation
- Maltepe Üniversitesi Adresli: Evet
Özet
In this paper the application of a multigrid based sparse recovery method for multidimensional harmonic retrieval is investigated. Multidimensional modal estimation problem is formulated as a simultaneous sparse recovery problem for each dimension and then the signal parameters are estimated using a multigrid dictionary refinement scheme. Performance of the proposed method is compared against 2-D ESPRIT and Cramer-Rao lower bounds in numerical simulations.