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In the signal processing for metrewave radar, the reflection paths of target echoes can cause severe error in the elevation estimation for the low-angle target tracking. The exact angles of the reflection paths are unknown beforehand, and therefore, the reflection paths can not be suppressed easily. Therefore, in this article, an improved reflection paths suppression approach is presented. A block...
For economy, the digital beamforming(DBF) is used to transform a huge array outputs into the bearing ones at several expectable directions in HF skywave radar. However, as the target signal phases on the different array elements are mixed in the beamformed data, the resolvable super-resolution spatial spetra of the coherent targets within a beamwidth can not be directly constructed by the existing...
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