Projekter pr. år

### Abstrakt

This paper proposes a method that reduces the computational complexity of signal reconstruction in single-channel nonuniform sampling while acquiring frequency sparse multi-band signals. Generally, this compressed sensing based signal acquisition allows a decrease in the sampling rate of frequency sparse signals, but requires computationally expensive reconstruction algorithms. This can be an obstacle for real-time applications. The reduction of complexity is achieved by applying a multi-coset sampling procedure. This proposed method reduces the size of the dictionary matrix, the size of the measurement matrix and the number of iterations of the reconstruction algorithm in comparison to the direct single-channel approach. We consider an orthogonal matching pursuit reconstruction algorithm for single-channel sampling and its modification for multi-coset sampling. Theoretical as well as numerical analyses demonstrate order of magnitude reduction in execution time for typical problem sizes without degradation of the signal reconstruction quality.

Originalsprog | Engelsk |
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Tidsskrift | European Signal Processing Conference (EUSIPCO) |

Vol/bind | 21 |

Antal sider | 5 |

ISSN | 2076-1465 |

Status | Udgivet - 2013 |

Begivenhed | European Signal Processing Conference EUSIPCO 2013 - Marrakech, Moroco Varighed: 9 sep. 2013 → 13 sep. 2013 |

### Konference

Konference | European Signal Processing Conference EUSIPCO 2013 |
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By | Marrakech, Moroco |

Periode | 09/09/2013 → 13/09/2013 |

## Fingeraftryk Dyk ned i forskningsemnerne om 'Reducing the Computational Complexity of Reconstruction in Compressed Sensing Nonuniform Sampling'. Sammen danner de et unikt fingeraftryk.

## Projekter

- 2 Afsluttet

## PhD project: Compressive Sensing in Signal Analyzer

Grigoryan, R. & Larsen, T.

01/12/2010 → 30/11/2013

Projekter: Projekt › Forskning

## SparSig: Sparse Signal Processing in Wireless Communications (SparSig)

Larsen, T., Jensen, S. H., Arildsen, T., Fyhn, K., Pankiewicz, P. J., Li, P. & Jensen, T.

01/01/2010 → 27/09/2013

Projekter: Projekt › Forskning