### Abstract

In this work, a new algorithm for tracking the directions-of-arrival (DOA's) of moving targets is proposed. The targets are assumed to be moving with constant angular velocities within a short time and emitting continuously narrow-band signals that impinge on an array of sensors. Then the trajectories of targets can be approximated with linear functions within the short time. Consequently, in this algorithm, estimates of the DOA's of targets are obtained by minimizing a cost function which consists of residual vectors, the difference between observed data vectors and the data vectors estimated by using the approximated linear functions. By employing the linear approximations, the proposed method may be useful for tracking the targets moving with large angular velocities especially. Performance of the algorithm is illustrated by simulation results.

Original language | English |
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Title of host publication | IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC |

Publisher | IEEE |

Pages | 189-192 |

Number of pages | 4 |

Publication status | Published - 1997 |

Event | Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 - Paris, Fr Duration: 1997 Apr 16 → 1997 Apr 18 |

### Other

Other | Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 |
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City | Paris, Fr |

Period | 97/4/16 → 97/4/18 |

### Fingerprint

### ASJC Scopus subject areas

- Signal Processing

### Cite this

*IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC*(pp. 189-192). IEEE.

**Recursive algorithm for tracking DOA's of moving targets by using linear approximations.** / Kagiwada, Hajime; Ohmori, Hiromitsu; Sano, Akira.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC.*IEEE, pp. 189-192, Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97, Paris, Fr, 97/4/16.

}

TY - GEN

T1 - Recursive algorithm for tracking DOA's of moving targets by using linear approximations

AU - Kagiwada, Hajime

AU - Ohmori, Hiromitsu

AU - Sano, Akira

PY - 1997

Y1 - 1997

N2 - In this work, a new algorithm for tracking the directions-of-arrival (DOA's) of moving targets is proposed. The targets are assumed to be moving with constant angular velocities within a short time and emitting continuously narrow-band signals that impinge on an array of sensors. Then the trajectories of targets can be approximated with linear functions within the short time. Consequently, in this algorithm, estimates of the DOA's of targets are obtained by minimizing a cost function which consists of residual vectors, the difference between observed data vectors and the data vectors estimated by using the approximated linear functions. By employing the linear approximations, the proposed method may be useful for tracking the targets moving with large angular velocities especially. Performance of the algorithm is illustrated by simulation results.

AB - In this work, a new algorithm for tracking the directions-of-arrival (DOA's) of moving targets is proposed. The targets are assumed to be moving with constant angular velocities within a short time and emitting continuously narrow-band signals that impinge on an array of sensors. Then the trajectories of targets can be approximated with linear functions within the short time. Consequently, in this algorithm, estimates of the DOA's of targets are obtained by minimizing a cost function which consists of residual vectors, the difference between observed data vectors and the data vectors estimated by using the approximated linear functions. By employing the linear approximations, the proposed method may be useful for tracking the targets moving with large angular velocities especially. Performance of the algorithm is illustrated by simulation results.

UR - http://www.scopus.com/inward/record.url?scp=0031379226&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031379226&partnerID=8YFLogxK

M3 - Conference contribution

SP - 189

EP - 192

BT - IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC

PB - IEEE

ER -