基于雷达宽窄带数据的目标融合识别系统设计

    Design of a Target fusion Recognition System Based on Radar Wideband and Data

    • 摘要: 随着雷达技术的发展,单部雷达已能同时具备窄带跟踪和宽带测量能力,如何充分利用窄带雷达散射截面积(RCS)和宽带高分辨距离像(HRRP)等特性数据用于目标识别,成为识别系统设计时需要关注的核心问题。针对这一技术挑战,该文提出了一种融合多特征数据的目标识别算法。算法充分考虑了RCS数据和HRRP数据的不同特性:RCS数据虽然测量容易、数据充分,但所含目标信息较为粗糙;而HRRP数据虽然信息精细、特征明显,但存在数据缺失的问题。为此,研究团队创新性地采用了混合识别策略:针对RCS数据的特点,利用神经网络算法强大的模式识别能力进行目标模糊性识别;针对HRRP数据的特点,采用模板匹配算法进行目标属性概率判定。最后,通过证据理论对两种识别结果进行有效融合,充分发挥不同数据源的优势互补作用。实验结果表明,该系统设计不仅显著提高了目标识别的准确率,还增强了识别过程的稳定性,为复杂战场环境下的雷达目标识别提供了新的技术思路。

       

      Abstract: With the development of radar technology, a single radar can now simultaneously possess narrowband tracking and wideband measurement capabilities. How to fully utilize characteristic data, such as narrowband RCS and wideband HRRP, to target recognition has become a core issue that needs to be addressed in the design of recognition systems. In response to the technical challenge, this paper proposes a target recognition algorithm that integrates multiple feature data. The algorithm fully considers the different characteristics of RCS data and HRRP data. Although RCS data is easy to measure and abundant, the target information in it is relatively rough. In contrast, HRRP data is rich in information and has distinct features, but it suffers from data deficiency issue. Therefore, the research team innovatively adopts a hybrid recognition strategy, utilizing neural network algorithms with strong pattern recognition capabilities for fuzzy target recognition, and template matching algorithms for the probabilistic determination of target attributes, based on the characteristics of RCS data and HRRP data, respectively. Finally, the two recognition results are effectively fused through evidence theory, fully leveraging the complementary advantages of different data sources. Experimental results show that this system design not only significantly improves the accuracy of target recognition but also enhances the stability of the recognition process, providing a new technical approach for radar target recognition in complex battlefield environments.

       

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