Mr. Qinghua Han Profile

Qinghua Han

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Proceedings Article | 28 March 2024 Paper

A novel two-step detection algorithm for range spread target

Junqing Wu, Fei Wang, Qinghua Han

Proceedings Volume 13091, 130911O (2024) https://doi.org/10.1117/12.3022772

KEYWORDS: Target detection, Detection and tracking algorithms, Sensors, Radar sensor technology, Radar, Pulse signals, Object detection, Hough transforms, Clutter, Signal detection

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In the domain of wideband radar, detecting targets often involves the dispersion of target echo energy across multiple range resolution cells. A critical aspect of enhancing wideband radar target detection performance lies in effectively utilizing this discrete energy information. This paper introduces the Hough transform and weighted amplitude iteration detector (HT-WAID) for wideband radar, which effectively mitigates the effects of range spread on detection performance. Firstly, the analysis commences for wideband radar targets under both single-rank and multi-rank conditions. Subsequently, a weighted amplitude iteration range spread target detector (WAI-RSTD) is introduced. Furthermore, the WAI-RSTD algorithm is extended to a two-dimensional detection space using Hough transform theory. Simulation results demonstrate that the proposed algorithm outperforms Adaptive generalized likelihood ratio test (GLRT) and Wald-like detectors, showcasing superior target detection and clutter suppression capabilities in complex white Gaussian noise and Weibull clutter backgrounds.

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