### Abstract

A new method to calculate a weight vector of a beamformer, called the projection matrix method, is proposed. The method calculates a projection matrix composed of the steering vector of interference or desired signal, and obtains a new spatial covariance matrix by projecting the signal covariance matrix onto the projection matrix. Then, the method finds the eigenvector corresponding to the largest eigenvalue of the new spatial covariance matrix. If this eigenvector is adopted as a weight vector of a beamformer, it is the optimal solution to maximize signal to interference plus noise ratio without requiring the inversion of the covariance matrix. The computer simulations showed that the proposed method effectively design a beamformer to cancel or attenuate interferences.

Original language | English |
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Pages (from-to) | 1563-1567 |

Number of pages | 5 |

Journal | IEEE Vehicular Technology Conference |

Volume | 3 |

Issue number | 53ND |

Publication status | Published - 2001 Jan 1 |

Event | IEEE VTS 53rd Vehicular Technology Conference (VTS SPRING 2001) - Rhodes, Greece Duration: 2001 May 6 → 2001 May 9 |

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### All Science Journal Classification (ASJC) codes

- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics

### Cite this

*IEEE Vehicular Technology Conference*,

*3*(53ND), 1563-1567.

}

*IEEE Vehicular Technology Conference*, vol. 3, no. 53ND, pp. 1563-1567.

**The projection matrix method for interference cancellation.** / Shim, S.; Jung, S.; Lee, C.

Research output: Contribution to journal › Conference article

TY - JOUR

T1 - The projection matrix method for interference cancellation

AU - Shim, S.

AU - Jung, S.

AU - Lee, C.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - A new method to calculate a weight vector of a beamformer, called the projection matrix method, is proposed. The method calculates a projection matrix composed of the steering vector of interference or desired signal, and obtains a new spatial covariance matrix by projecting the signal covariance matrix onto the projection matrix. Then, the method finds the eigenvector corresponding to the largest eigenvalue of the new spatial covariance matrix. If this eigenvector is adopted as a weight vector of a beamformer, it is the optimal solution to maximize signal to interference plus noise ratio without requiring the inversion of the covariance matrix. The computer simulations showed that the proposed method effectively design a beamformer to cancel or attenuate interferences.

AB - A new method to calculate a weight vector of a beamformer, called the projection matrix method, is proposed. The method calculates a projection matrix composed of the steering vector of interference or desired signal, and obtains a new spatial covariance matrix by projecting the signal covariance matrix onto the projection matrix. Then, the method finds the eigenvector corresponding to the largest eigenvalue of the new spatial covariance matrix. If this eigenvector is adopted as a weight vector of a beamformer, it is the optimal solution to maximize signal to interference plus noise ratio without requiring the inversion of the covariance matrix. The computer simulations showed that the proposed method effectively design a beamformer to cancel or attenuate interferences.

UR - http://www.scopus.com/inward/record.url?scp=0035189325&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035189325&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0035189325

VL - 3

SP - 1563

EP - 1567

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

SN - 0740-0551

IS - 53ND

ER -