激光雷达/雷达多模复合探测的研究近况

激光雷达较一般雷达具有更高的测距精度,而雷达的作用距离和搜索范围比激光雷达大,因此,将激光雷达与一般雷达复合探测可提高探测精度,并增强抗干扰能力。由于现代战争更趋于都市化,而城市中建筑物较多,这势必带来复杂背景下目标的准确识别和定位问题。要解决这一问题,激光成像雷达具有非常大的优势。为此,激光雷达与雷达等探测体制多模复合技术的研究已备受关注。主要介绍了国外近5年来激光雷达/雷达多模复合探测的研究状况,在分析国内外发展水平的基础上提出了建议。

毫米波探测技术与寻的引信

分析了毫米波传感器 (包括毫米波雷达和毫米波辐射计 )的特点及工作原理 ,讨论了基于毫米波传感器的多模复合探测技术 ,并具体介绍了它们在灵巧弹药寻的引信中的广泛应用 ,结合现代电子技术和信号处理技术展望了其发展前景。

飞机隐身技术与未来空空导弹的发展

综述了飞机隐身技术目前达到的技术水平、未来的发展方向，以及空空导弹在红外成像和主动雷达探测技术方面的不断发展，提出了空空导弹未来的发展方向和关键技术。

反无人机技术发展研究

随着无人机的普及化,无论在军事还是民用领域都面临着日益严重的无人机威胁,反无人机技术已成为各国关注的重点技术。针对上述情况,首先对反无人机技术的常规方法进行分析和总结,然后对国内外反无人机技术和产品的发展现状进行了深入研究,最后在总结现有反无人机技术优缺点的基础上,创新性地提出了多模复合探测、无人值守探测、定向能武器发展以及软硬结合反制等反无人机技术的发展趋势。

Investigation of Geiger-mode detector in multi-hit model for laser ranging

The performance of detector limits the overall performance of laser ranging system. And the design of multi-hit detector is one of the feasible ways to promote the performance of detector. Currently, the segmentation method or the recursive method is commonly used to analyze the multi-hit detector model. To the best of our knowledge, this paper is the first to propose a combinatorial method to solve the multi-hit detector model from the perspective of discrete time. Then, universal formulas of total signal detection probability and the average count are deduced based on the Poisson distribution signal. Furthermore, analysis is made to figure out how the average count changes with different parameters, such as the dead time, gating time, rate intensity. As a result, for GM-APD, the multi-hit detector model is verified advantageously compared to the single-hit detector model in improving the average count theoretically. Meanwhile, a discrete step feature is presented when average count changes with dead time or the gating time, which is of great significance in gating time optimization.