CAJ | 학술논문

为深入了解某无托型自动步枪射击时人枪系统的实际运动情况、研究其人枪系统运动规律，采用2台正交高速摄影机同步跟踪固定在人枪系统上的标记点，获得各特征点在各自视窗中的平面运动轨迹；基于自适应阈值函数的小波阈值去噪方法，得到该自动步枪及射手在立姿射击过程中俯仰及侧偏的运动特征曲线。实验结果表明：采用正交高速摄影获得的人枪运动参数能更细致、更全面地反映射击时人枪系统的实际运动情况；射击过程中，枪膛合力的作用、自动机后坐到位的撞击和自动机复进到位的撞击对枪身运动的影响较大。
위심입료해모무탁형자동보창사격시인창계통적실제운동정황、연구기인창계통운동규률，채용2태정교고속섭영궤동보근종고정재인창계통상적표기점，획득각특정점재각자시창중적평면운동궤적；기우자괄응역치함수적소파역치거조방법，득도해자동보창급사수재립자사격과정중부앙급측편적운동특정곡선。실험결과표명：채용정교고속섭영획득적인창운동삼수능경세치、경전면지반영사격시인창계통적실제운동정황；사격과정중，창당합력적작용、자동궤후좌도위적당격화자동궤복진도위적당격대창신운동적영향교대。
To study the actual movements and the motion law of the human-rifle system with a non-buttstock rifle in the process of shooting,the maker points tied up on the body and the rifle were captured in real time by two orthogonal high-speed photographies,and the plane traj ectory of each feature point was obtained.Based on the wavelet de-noising method of an adaptive threshold function,the characteristic curves of pitching and yawing motion were obtained. Experimental results indicate that the motion parameters of the human-rifle system captured by two orthogonal high-speed photographies can reflect the actual motion of human-rifle system more detailed and more comprehensively.The resultant force in bore and the strikes caused by au-tomatic mechanism collision at front and rear end during firing process affects the rifle motion significantly.