光学学报, 2018, 38 (12): 1204001, 网络出版: 2019-05-10
空中点目标机动模式的双色比特征空间特性及辨识 下载: 932次
Dual-Color-Ratio-Feature Spatial Characteristics and Recognition of Aerial Point Target Maneuvering Modes
图 & 表
图 1. 机载探测器与目标的相对位置关系
Fig. 1. Relative position relationship between airborne detector and target
图 3. 机动模式下双色比特征点分布
Fig. 3. Dual-color-ratio-feature point distribution under maneuvering mode
图 5. (a)目标和机载探测器的二维运动航迹;(b)目标横向过载随时间的变化;(c)目标姿态角随时间的变化;(d)双色比特征随目标姿态角和横向过载的变化
Fig. 5. (a) Two-dimensional motion tracks of target and airborne detector; (b) target lateral overloading versus time; (c) target attitude angle versus time; (d) dual-color-ratio-feature versus target attitude angle and lateral overloading
图 6. 直角转弯机动的双色比特征点分布
Fig. 6. Dual-color-ratio-feature point distribution under quarter turn maneuver
图 7. 不同目标姿态角变化量下双色比特征子空间高斯混合分布。(a) Δα=50.34°; (b) Δα=36.16°; (c) Δα=14.23°; (d) Δα=3.52°
Fig. 7. Gauss mixture distributions of dual-color-ratio-feature sub-space under different variations of target attitude angle. (a) Δα=50.34°; (b) Δα=36.16°; (c) Δα=14.23°; (d) Δα=3.52°
图 8. 直线运动的时序双色比特征点分布
Fig. 8. Sequential dual-color-ratio-feature point distribution under linear motion
图 9. 直线运动的时序双色比特征子空间高斯混合分布。(a)合并相邻特征子空间前;(b)合并相邻特征子空间后
Fig. 9. Gauss mixture distributions of sequential dual-color-ratio-feature sub-space under linear motion. (a) Before adjacent feature sub-spaces merged; (b) after adjacent feature sub-spaces merged
图 10. 直角转弯机动的时序双色比特征点分布
Fig. 10. Sequential dual-color-ratio-feature point distribution under quarter turn maneuver
图 11. 直角转弯机动双色比特征子空间高斯混合分布。(a)合并相邻特征子空间前;(b)合并相邻特征子空间后
Fig. 11. Gauss mixture distributions of sequential dual-color-ratio-feature sub-space under quarter turn maneuver. (a) Before adjacent feature sub-spaces merged; (b) after adjacent feature sub-spaces merged
图 12. 圆周机动的时序双色比特征点分布
Fig. 12. Sequential dual-color-ratio-feature point distribution under circle maneuver
表 1点目标不同机动模式的识别率
Table1. Recognition rate of different maneuvering modes of point target
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寇添, 周中良, 刘宏强, 杨远志, 阮铖巍. 空中点目标机动模式的双色比特征空间特性及辨识[J]. 光学学报, 2018, 38(12): 1204001. Tian Kou, Zhongliang Zhou, Hongqiang Liu, Yuanzhi Yang, Chengwei Ruan. Dual-Color-Ratio-Feature Spatial Characteristics and Recognition of Aerial Point Target Maneuvering Modes[J]. Acta Optica Sinica, 2018, 38(12): 1204001.