太赫兹雷达非均匀地杂波统计特性建模方法研究

Terahertz waves have both high-frequency and high-bandwidth characteristics, which can greatly improve the anti-interference ability and target detection capability of radar, and has drawn wide attention in recent years. However, its target characteristic and clutter characteristic can not be accurately described by the traditional model due to its location in the transition area of macro-electronics to micro-photon in the electromagnetic spectrum, which has led to the restricted development of terahertz radar target detection technology. This project proposes a method to establish the clutter model in the terahertz band by means of iterative experimental data and theoretical analysis. Based on the pre-developed 140 GHz, 340 GHz and 670 GHz terahertz radar systems, theoretical and experimental studies on noise suppression, clutter characteristics analysis and modeling around terahertz radar systems are carried out to establish accurate terahertz clutter statistical model. This project will lay the foundation for the development and practical application of terahertz radar technology, and have broad application prospect in the future terahertz target detection.

太赫兹波同时具有高频和高带宽两个特性，可以大幅提高雷达的抗干扰能力和目标探测能力，近年来受到了广泛的关注。但是由于其在电磁波频谱中位于宏观电子学向微观光子学的过渡区域，该频段的目标特性和杂波特性不能使用传统的模型准确描述，由此使得太赫兹雷达目标探测技术的发展受到了制约。本项目提出了通过实验数据与理论分析交互迭代的方式建立太赫兹频段地杂波模型的方法。在前期已研制成功的140GHz、340GHz和670GHz太赫兹雷达系统的基础上，围绕太赫兹雷达系统噪声抑制、杂波特性分析与模型建立展开理论和实验研究，从而建立精确的太赫兹地杂波统计模型，为太赫兹雷达技术的发展和实际应用奠定基础，在未来的太赫兹目标探测领域有着广阔的应用前景。

太赫兹雷达具有高频率和高带宽的特性，这两个特性大幅度提高了雷达的抗干扰能力和目标探测能力，近年来受到广泛的关注与研究。该频段的目标特性和杂波特性无法使用传统的模型进行准确的描述，由此使得太赫兹雷达目标探测技术的发展受到了制约。本项目通过实验数据与理论分析相互迭代的方式，建立了太赫兹频段非均匀地杂波模型。在前期已研制成功的太赫兹高分辨率探测雷达系统的基础上，围绕太赫兹雷达系统噪声抑制、杂波特性分析与模型建立开展了理论和实验研究，建立了太赫兹地杂波统计模型。