## 摘要

Most high-resolution bearing estimation algorithms have been based on the assumption of a far-field source environment. When this assumption is violated, i.e., when some sources are in the near field, these algorithms generally show unsatisfactory performance. An algorithm to tackle this problem using a uniform linear array is proposed. The observed signal covariance matrix of near-field sources is equivalently viewed as a corrupted measurement of the ideal signal covariance matrix of far-field sources located at the same bearings. A far-field approximation (FFA) covariance matrix is reconstructed from the observed covariance matrix to reduce the corruptions. Therefore, existing high-resolution bearing estimation techniques (e.g., MUSIC) can be directly applied to estimate the bearings of the near-field sources. Simulation results demonstrating the effectiveness of this approach are presented.

原文 | ???core.languages.en_GB??? |
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頁（從 - 到） | 1474-1477 |

頁數 | 4 |

期刊 | IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) |

卷 | 4 |

出版狀態 | 已出版 - 1990 |

事件 | 1990 Antennas and Propagation Symposium Digest - Dallas, TX, USA 持續時間: 7 5月 1990 → 11 5月 1990 |