光学学报, 2018, 38 (2): 0204003, 网络出版: 2018-08-30
红外辐射特征信号与目标机动模式的相关性 下载: 860次
Correlation between Infrared Radiation Characteristic Signals and Target Maneuvering Modes
探测器 红外辐射 特征信号 姿态角变化率 机动模式 detectors infrared radiation characteristic signals changing rate of attitude angle maneuvering mode
摘要
通过建立目标光谱辐射的包络模型和目标姿态角的动态特征模型,分析了目标机动模式与姿态角变化率之间的关系。建立了红外辐射的响应信号模型,并对影响信号特征的关键因素进行了理论分析。结果表明,空间距离的指数项和高次幂项是影响红外辐射信号幅度整体变化趋势的主要因素,目标姿态角的变化率对红外辐射响应信号的局部特征影响显著,且红外辐射响应信号的时间导数与目标姿态角的变化率成正比。选取三种典型的目标机动模式进行了仿真实验,结果表明,不同机动模式下目标红外辐射响应特征信号的差异性显著,这为目标机动模式的识别提供了可行性,对空间机动目标的跟踪、机动检测和态势评估具有较大意义。
Abstract
By establishing the envelope model of the spectral radiation of target and the dynamic characteristic model of target attitude angle, the relationship between the target maneuvering mode and the changing rate of the attitude angle is analyzed. The model of response signal for infrared radiation is established and the key factors influencing the signal features are theoretically analyzed. The results show that the exponential terms and the high order power terms of spatial distance are the main factors which influence the overall trend of amplitude change of infrared radiation signal, and the changing rate of the target attitude angle has a significant effect on the local features of the infrared radiation response signals. The time derivative of the infrared radiation response signals is proportional to the changing rate of the target attitude angle. Three typical target maneuvering modes are chosen to perform simulation experiments, and the results show that the target infrared radiation response characteristic signals are significantly different under different maneuvering modes, which provides a feasibility to identify the target maneuvering modes and has great significance to the target maneuver tracking, maneuvering detection and situation evaluation.
寇添, 周中良, 刘宏强, 杨远志. 红外辐射特征信号与目标机动模式的相关性[J]. 光学学报, 2018, 38(2): 0204003. Tian Kou, Zhongliang Zhou, Hongqiang Liu, Yuanzhi Yang. Correlation between Infrared Radiation Characteristic Signals and Target Maneuvering Modes[J]. Acta Optica Sinica, 2018, 38(2): 0204003.