“…Although, the average impulsive interval approach has been applied to many existing literatures, there are no results concerning the time-varying impulses, where both stabilizing and destabilizing impulses are considered simultaneously. In addition, in most existing results on impulsive systems with average impulsive approach [4,15,16,35], it is assumed that the average impulsive interval is independent of the impulsive strength (we call it as strength-independent average impulsive interval), and the average impulsive intervals for all impulsive sequences are assumed to be equal to each other, which may not be anticipated. Actually, when considering time-varying impulsive effects, there are many impulses with different impulsive strengths.…”