Abstract:
Because of the influence of various factors, such as platform motion, antenna error, clutter, and noise interference, the direction finding (DF) of targets using shipborn...Show MoreMetadata
Abstract:
Because of the influence of various factors, such as platform motion, antenna error, clutter, and noise interference, the direction finding (DF) of targets using shipborne high-frequency surface wave radar (HFSWR) becomes extremely difficult, which poses challenges for locating vessels at sea. To achieve more accurate DF for shipborne HFSWR, this letter proposes a method based on correction matrices, dividing the factors that cause DF errors into two categories: platform motion and interference from other sources. After calculating two corresponding correction matrices, a two-step correction is performed on the steering vector of the array to reduce DF errors. Field data experiments validate the performance of the correction matrix-based method for DOA estimation.
Published in: IEEE Geoscience and Remote Sensing Letters ( Volume: 22)