Sparse Representation Based SAR Vehicle Recognition along with Aspect Angle

Table 4

Configuration invariance results (%) for different algorithms (𝜙_train=17^∘,𝜙_test=15^∘,𝑑=60, and 𝜓_𝑟=17^∘).

Algorithms	Datasets	Invariant			Mixed			Variant
	Input ↓	BMP2	BTR70	T72	BMP2	BTR70	T72	BMP2	BTR70	T72
Linear SVM	BMP2	85.13	8.21	6.66	75.13	10.05	14.82	71.17	10.20	18.62
	BTR70	2.55	92.43	1.02	2.55	94.90	2.55	1.53	96.94	1.53
	T72	7.65	2.04	90.31	16.49	10.31	73.20	20.98	11.66	67.36
	Avg.	90.62			77.14			74.85
KSVM	BMP2	88.21	7.18	4.61	76.32	10.73	12.95	74.74	9.95	15.30
	BTR70	2.55	96.94	0.51	2.04	95.92	2.04	1.53	97.45	1.02
	T72	6.12	1.02	92.86	14.60	5.84	79.55	19.95	5.18	74.87
	Avg.	92.67			80.51			79.36
SRC	BMP2	97.44	0	2.56	90.97	2.04	6.98	86.48	3.83	9.69
	BTR70	1.53	97.96	0.51	0.51	98.98	0.51	0	100	0
	T72	0	0	100	6.87	4.12	89.00	10.36	4.15	85.49
	Avg.	98.47			92.98			88.81
SRCA	BMP2	100	0	0	93.70	2.38	3.92	91.84	4.34	3.83
	BTR70	0.51	99.49	0	0	100	0	0	100	0
	T72	0	0	100	10.14	5.84	84.02	15.54	8.03	76.42
	Avg.	99.83			90.48			87.37