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Basis pursuit over continuum applied to range-Doppler estimation problem

Ashkan Panahi (Institutionen för signaler och system, Signalbehandling) ; Marie Ström (Institutionen för signaler och system, Signalbehandling) ; Mats Viberg (Institutionen för signaler och system, Signalbehandling)
IEEE 8th Sensor Array and Multichannel Signal Processing Workshop, SAM 2014; A Coruna; Spain; 22 June 2014 through 25 June 2014 p. 381-384. (2014)
[Konferensbidrag, refereegranskat]

Sparse estimation and compressive sensing techniques have been recently considered for radar estimation problems. It is frequently observed that these methods are robust to model uncertainties and substantially improve performance in scenarios with a low signal-to-noise. However, since current sparsity-based techniques are computationally costly and require a suitable discretization (grid), which strongly restricts resolution, they practically receive less attention. In this work, we present an application of a new sparsity-based technique to the specific problem of range-Doppler estimation. The method, generalizing basis pursuit, is less computationally complex and its performance is independent of the grid selection. We demonstrate that the proposed technique can improve estimation performance in difficult cases, as compared to the SAGE technique.

Article number 6882420.

Denna post skapades 2014-10-07. Senast ändrad 2015-09-18.
CPL Pubid: 203874


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Institutionen för signaler och system, Signalbehandling (1900-2017)



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