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
- Acta Optica Sinica
- Vol. 38, Issue 12, 1204001 (2018)
Fig. 1. Relative position relationship between airborne detector and target
Fig. 2. Schematic of migration of feature space
Fig. 3. Dual-color-ratio-feature point distribution under maneuvering mode
Fig. 4. Migration process of feature space under maneuvering mode
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
Fig. 6. Dual-color-ratio-feature point distribution under quarter turn maneuver
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°
Fig. 8. Sequential dual-color-ratio-feature point distribution under linear motion
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
Fig. 10. Sequential dual-color-ratio-feature point distribution under quarter turn maneuver
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
Fig. 12. Sequential dual-color-ratio-feature point distribution under circle maneuver
Fig. 13. Gauss mixture distribution of sequential dual-color-ratio-feature sub-space under circle maneuver
|
Table 1. Recognition rate of different maneuvering modes of point target
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20