A Fast Recognition Method for Space Targets in ISAR Images Based on Local and Global Structural Fusion Features with Lower Dimensions

Table 1

8 trace transform functions.

Trace transform	Functional used
T1	, where , and
T2	, where , and
T3	, where , and
T4	, where , and
T5	, where , and
T6	, where , and
T7	, where , and
T8	, where , and